Showing posts with label biomechanics. Show all posts
Showing posts with label biomechanics. Show all posts

Thursday, April 30, 2020

To Clam, or Not to Clam

As the battle to annihilate the coronavirus continues, everyone is faced with new realities. For me, those realities include chatting with my teenage patients on the phone, transitioning to Telehealth, and only seeing "high priority" kids while covered head to toe in PPE. The patients are still the most important part (and my favorite), but the volume is dramatically reduced so the majority of my time has been spent learning. I've also been working on the Seattle Children's Sports Physical Therapy Journal Club, summarizing papers to share with the department on a monthly basis.  The May topic, coming out tomorrow, is a collective look at these four gluteal muscle electromyography (EMG) papers:

1. DiStefano LJ et al, “Gluteal muscle activation during common therapeutic exercises.”  JOSPT 2009.
2. Boren K et al, “Electromyographic analysis of gluteus medius and gluteus maximus during rehabilitation exercises.” IJSPT 2011.
3. Macadam P et al, “An Examination of the gluteal muscle activity associated with dynamic hip abduction and hip external rotation exercise: A systematic review.” IJSPT 2015.
4. Bishop BN et al, “Electromyographic Analysis of Gluteus Maximus, Gluteus Medius, and Tensor Fascia Latae during therapeutic exercises with and without elastic resistance.” IJSPT 2018.  

Why this topic? I believe it is imperative for clinicians to be lifelong learners and that reading research is one approach to improve your skills as a clinician.  I also think it's really hard to do this, which is why I stared writing this blog - a place where I could store things I've learned and write out my thought processes.  The impetus behind this particular topic of learning boils down to two key points.

Key point number one: The Clamshell Debate.

If you've ever gone to outpatient orthopedic physical therapy, you've likely done the clamshell exercise.  It's very common and frequently patients will say they've done them in the past.  Thanks to Seattle Storm Sports Performance Coach Emily Blurton for her video demonstration:

Early in my PT career, I frequently recommended this exercise.  I had pre-made exercise programs that I used repeatedly for multiple conditions.  Now I make every program for the patient in front of me, often updating them at every session, and this exercise rarely appears. To me, the clamshell doesn't look like anything a person does in daily life or in sports. Maybe it looks like you're lifting your leg to get into a car.  But that's standing up, so maybe not.  Even worse, a lot of patients do them incorrectly and find them boring and too easy.  I don't create exceptionally difficult exercise programs, but it's a lot easier to convince someone to work on something that's challenging than on something that's simple and mundane.  And most of the time I don't really harp on having proper form - but with this exercise, is there any benefit to doing it wrong?  Biomechanically speaking, an "incorrect" squat will still give you some strength gains, but potentially not where you may want to target them.  I don't think shooting for the moon, missing, and landing amongst the stars is actually meaningful in this scenario. 

The circumstances under which I will recommend the clamshell are very specific: the patient needs to 1) have a restricted weight bearing status from the physician due to a surgery or fracture and is therefore unable to do the exercises I prefer but would still benefit from strengthening or 2) have a significant deficit in their active hip external rotation movement with available passive mobility that I want them to purposefully control. (Translation - they're too weak to do any of the other exercises I like better, but I never actually tell patients they're weak!)

I share many of my patients with coworkers who like this exercise, so we've had conversations about clamshells for years.  The biggest discussion came when I had a student who I practically forbade from assigning clams without excessive clinical reasoning of why they were a good choice for that patient. Now that I have some extra time to dig into the research, I'm looking to prove myself wrong.  Does the evidence oppose my clinical bias? And how do you explore the efficacy of an exercise?  

Point Number Two:  What research should I be reading?  


Levels of Evidence - Creative Commons CC BY-NC 3.0
In case you're not familiar with the Levels of Evidence for scientific materials, here's a very basic overview.  Certain types of research can be "trusted" more than others, particularly when you're trying to generalize data to a larger population than was actually studied.  Here's an example: Let's say that tonight at dinner, you ask your child if they likes peas.  If they say no, can you now conclude that this single case of your own observation applies to all the kids of the same age in the USA?  Of course not. But it is your expert opinion that your own kid does not like peas and you understand how that data applies in your household.  Now what if you took a survey of your kid and your two next-door neighbors houses who happen to have seven more kids, asking all of them if they like peas.  You have more information about kids in your neighborhood and their feelings about peas, but still shouldn't make wide-spread assumptions about the whole country based on your small sample.  This would be closer to a small case study moving up the pyramid. If you surveyed your neighbors and then three other researchers did a similar study in different cities, asking fifty kids in second grade and then the same kids again in sixth grade and maybe one researcher also asks about carrots, the number of data points continues to increase and your ability to generalize information across a bigger group improves.  Now you've moved up into more of a cohort study.  

This is a very simplistic demonstration, but sometimes simple demonstrates a major point.  Right now with the Coronavirus Pandemic, small studies are being smeared all over the media without sufficient data and with incorrect descriptions.  It's a good time to point out that you need to be cautious about how you interpret what you read.  Notice at the top of the pyramid sits "systematic review." A systematic review takes multiple research papers into account to accumulate more data points to try to make conclusions.  It is based on a researcher compiling data from other researcher's published works.  Each individual study may not have done the same research, but their data overlaps and new conclusions are drawn from having more data points. I DID NOT USE SCIENTIFIC RIGOR in my collection of resources for this blog post and I have minimal experience in data analysis, so I'm certain there are flaws in what I've found by summarizing these four papers.  However, I basically (unintentionally) created a mini systematic review by reading four different papers (including one which was also a systematic review!). 

I collect articles to read in the future. This collection was one reason behind starting a journal club! I've previously written about the anti-library where you collect resources to learn about the things you know you don't know hereAlong with my anti-library, I also have folders of papers I've previously read. I had already read Dr. Lindsay DiStefano's Glute EMG paper (the first in the list) which was probably the nail in the coffin for clamshells for me. Imagine assuming that all kids don't like peas because one kid said they didn't?  I've basically assumed that clamshells are a poor quality exercise based on the findings of one paper that studied 21 participants doing 12 exercises.  Dr. DiStefano was my research advisor in PT School so I almost always read her publications, or have them saved for the future. (Bias Alert!)  So I need more data points! I searched for more recent Glute EMG papers to compare to hers and found three more, intentionally choosing papers that included the clam shell exercise and ultimately including one with a somewhat contrary view.  Now the data I'm considering reflects over 500 participants and many more exercises including multiple variations of the clamshell.

EMG studies are used to understand muscle activity during movement.  Not only are these papers valuable, but they can also influence patient care by helping to better understand what exercises target which muscles.  I've previously hinted at reading EMG studies with regard to the shoulder here, and for sure that knowledge changed my PT practice for post-op shoulder patients. EMG studies aren't perfect, but by looking at a collection of them, you can assume similar risk of error for each study.  Participants in these papers were first assessed for their maximal volitional isometric contraction (MVIC) (aka how strong they were for a specific muscle).  Then, by placing sticky electrode sensors on the skin at certain locations, measurements of muscle activity were taken with each exercises and compared to the maximal strength possible for that person. For an exercise to improve strength, the exercise must elicit at least 40-60 % of maximal strength (MVIC) for gains to occur.  

Here's what the papers found:
DiStefano et al: The top exercises for glute medius based on % MVIC were side-lying hip abduction (81%), single limb squat (64%), lateral band walk (61%) and for the glute maximus were single limb squat (59 %) and single limb deadlift (59%). Clamshell exercises (depending on hip flexion position) were shown to have glute medius activation of: 38-40% MVIC and glute maximus activation of 34-39% MVIC.  (Clamshells don't pass the 40% minimum cut point which has been my rationale to discontinue using them in the clinic). Other exercises were examined in the study, but since they did not cross the 40% MVIC threshold, they are omitted here.

The Boren study used a cut-point of 70% MVIC as the minimum acceptable for strengthening and examined a larger variety of exercises. Glute med
 exercises with >70% (MVIC) were the side plank with hip abduction (103.11% bottom leg, 88.82% top leg), single leg squat (82.86%), clamshell variation #4 hold top leg in full hip extension while internally rotating (76.88%), and prone plank with hip extension (75.13%).  For the gluteus maximus, plank with hip extension (106.22%), glute squeeze (80.72%), side plank with hip abduction top leg (72.87%), bottom leg (70.96%) single leg squat (70.31%).  This paper suggested that the best exercises to target both glute med and glute max were the prone plank with hip extension, side-planks with hip abduction, and single limb squats.

The clamshell exercise had four variations in the Boren paper. Of these variations, #4 described above was the only option to reach their defined threshold of >70%.  If you use the criteria of 40-60% outlined in the DiStefano paper, all the clamshell variations would meet that target as sufficient for strenghtening for the glute med, but only the standard clamshell works for the glute max at 53.10% with other variations all below 30% MVIC.

The Systematic Review by Macadam et al reviews multiple papers and breaks down exercises by body position.  The cross-over step up and lateral step up had the highest average glute max and glute med % MVIC.  Pelvic drop, sidestepping with hip internally rotated and band at the ankle, standing hip abduction variations, rotational single leg squat and transverse lunges all had glute med % MVIC over 40%.  Standing hip abduction, rotational single leg squats and transverse lunges also had % MVIC over 40% for glute max. 

In sidelying, side planks with hip abduction had the highest average glute max and glute med % MVIC. (That exercise is really hard, though, and wouldn't actually be appropriate for the majority of my patients.)  The paper examined 13 clamshell variations including the standard hip external rotation and others.  In one study, three clam variations (not the standard hip external rotation) had average glute med % MVIC over 60% but other studies had clamshell averages in the 30% range.  From this paper, I can start to ease up on my thoughts that patients do the clamshell incorrectly - and more that they're just creating their own variation.

And finally, Bishop et al compared glute med and glute max EMG to tensor fascia latae (TFL) EMG creating a "Glute to TFL Index."  The TFL and gluteus maximus both insert on to the iliotibial band and contribute to hip abduction.  The TFL is sometimes considered to be a contributor to low back and lower extremity pains and/or injuries and may increase in tone or "tightness" to compensate for gluteal deficits.  Bishops "Glute to TFL Index" findings were that the clamshell with resistance was 99.54 and the clamshell without resistance was 87.89 meaning that the gluteal muscles were selectively used for these exercises much more than the TFL.  The clamshell exercises far surpassed all the other tested exercises in this study with the next best exercise being the bridge with resistance at 48.86 and prone hip extension with 48.57, both about half of the clamshell values.  Thus, this paper recommends use of the clamshell exercise as a glute-targeting exercise that does not incorporate the TFL.  To these findings, I'll add another dose of bias. Does this really matter?  Does the Glute to TFL Index have clinical meaning?  I'm not sure because I don't know if I really want to "turn off" the TFL. I'll let the clams have this one. 
In the end, I haven't been convinced.  A healthy dose of confirmation bias potentially sprinkled with some self-serving bias may contribute to that decision, but to me, the evidence seems clear. Maybe I'll be nicer to those who know that the clamshell has the higher glute to TFL index, but without that rationale, these papers suggest many other glute strengthening exercises.  For sure, I'm open to hearing alternative opinions. Are you team clamshell?  Or team ANYTHING ELSE!  I use prone glute squeezes more often than I use clamshells.  And I'm incredibly grateful for my coworkers who challenge me to think about these topics. 

(Again - this is an abbreviated summary of the results sections of the papers.  More information looking at the discussions and limitations and other aspects of the research is available if you'd like more!  For the full written summary for Seattle Children's Journal Club, go ahead and email abby.gordon@seattlechildrens.org and I can send it any time). 

Monday, November 18, 2019

Reconciling Pain Science and Biomechanics

Greg Lehman
It's finally happened. I finally attended a course presented by a Canadian! I also work with a
Canadian Occupational Therapist and from my sample size of n=2, I think it's possible that Canadians are smarter than Americans. Why is it that Canadians seem to know more about American politics than we do? I can only inadequately describe how our government operates and I know absolutely nothing about theirs.  It's like they care about what happens in the world, or something. We should do better, America.

Anyways, since I'm sure you also want to take a course instructed by a Canadian, I'm sure you want to know what course it was? "Reconciling Pain Science and Biomechanics" by Greg Lehman. Greg is a physiotherapist, chiropractor, strength and conditioning specialist, and biomechanist who also teaches a course called Running Resiliency, which is probably excellent if you run or treat runners, which I try to avoid.  (I avoid running.  I don't mind rehabbing runners).  "Reconciling Pain Science and Biomechanics" is a two day course that bridges the gap between the clinicians who focus heavily on pain neuroscience education and the psychological side of the biopsychosocial model versus practitioners who tend to focus primarily on perfection of movement patterns and anatomical tissue structural damage as potential drivers of pain.  If you're working in orthopedics or with pain management you should definitely check this one out.  The course was overall broad with big concepts that ideally could apply in multiple situations.  It also came with an extensive set of resources including his presentation and a huge number of literature papers for consideration.  So much evidence to support the discussions. 

I've previously written about pain here (and several other posts).  Greg defines pain for this course as "When all your loads/stressors exceed your ability to adapt/cope."  Pain is the balance between all the things that are harmful to you and all the things that are good to you. I often like to use the concept of inputs versus outputs with my patients, especially because people often don't recognize that pain is an output. I can't put pain into you. Pain is an output message from your brain in response to stresses that have been applied.  I can apply stresses to you so that a painful output occurs, but instead I try to find the minimum effective dose of stress to input so that your output is positive adaptation, not pain. 

Some examples of inputs: mechanical stress to tissue such as an incision or deep touch or the feeling of your rear end on the chair you're sitting on, chemical stress such as dehydration or improper nutrition, emotional stress such as those from your family or your job, light, sound, and temperature changes.  Inputs are not good or bad, they are just stresses that we have to process in our body.

Some examples of outputs: pain, emotions, sweat (loss of heat), neuromuscular adaptations such as increased strength, seeing your mental health counselor and talking it out, breathing, coping/calming strategies.

So when a person is experiencing pain, anywhere, the options for treatment could include:
1) Can you decrease some of the inputs?  Examples: Turn off the lights, focus on some breathing strategies, go for a walk, change your body position, change the temperature, increase or decrease the amount of touch on the area that hurts. 
2) Can you increase some of the outputs?  These could actually be the same as above because of things like hot versus cold where changing temperature in one way actually accommodates both, but also doing some yoga, exercise, see your therapist, take your regularly prescribed medication if you have diagnosed anxiety or depression that is being medically managed, or spend time with friends.
3) Or can you make it so that you're able to accommodate for more inputs without changing the input or output?  Again, there is overlap here.  But for many people, building up tolerance through strength training or meditation practices or learning ways to desensitize your skin can all have this sort of impact. 

It's important to also consider what is getting in the way of making some of these changes. Is the patient fearful of going for a walk because they have pain in their foot?  Are they catastrophizing or perseverating on horrible possible outcomes by participating in a certain activity so they're unwilling to try?  What are the current beliefs and expectations about their condition?  Knowledge about how the mind and body connect and work together can help decrease these roadblocks to facilitate recovery.

Greg provided some important questions to ask patients to help them return to their favorite things.  For example, "In what ways do you think you could be healthier?"  This open-ended question allows a person with headaches to consider that maybe they could better hydrate, have more nutritious meals, sleep at more optimal times, go for a walk at lunch time, maybe acknowledge some of the recent spikes in stress at their job or school... but it allows them to identify potential sources of their pain, allows them to outline what they believe is happening, and also gives you a chance to better learn about the patient. 

Greg Lehman and Me
He also discussed the importance of asking "What activities are meaningful to you?"  So, for me, I really like to play softball.  When I hurt my knee a few months ago, I was disappointed that I couldn't play for a week or two, but then I was able to return in a modified way.  If I hit well enough, I could hobble my way to first base and get myself a substitute runner for the rest of the bases.  I didn't think I would damage my knee worse by doing this, and I actually didn't have much pain when I tried that.  I spent a little more time in the dugout instead of alternating innings so I could avoid spending so much time in my catcher's squat position.  So, I was able to dose my activity so that I could do some rather than none at all, and this actually built my confidence to return back to my usual level of participation after healing and recovering. 

Which leads perfectly into "Encourage the patient to ask themselves 'Will the activity harm me? and/or 'Will I pay for this later?'"  Like with my softball example, I didn't hurt myself worse by participating and I didn't hurt more after playing. Certainly there are times when doing activities can be harmful. As a physical therapist, it is our job to recognize when that is the case and appropriately guide our patients, but modifications are often possible.  In particular, I really think it's important for our post-surgical patients who can't be playing their sport to spend time around their teammates. Be the team manager!  Learn more about your sport.  Spend that time with your friends.  It's better for mood, learning of the game, growth with teammates (and they'll get better support if they're around and showing their progress over time." 

Best Thanksgiving Food
In another example, this past weekend I attended a delicious Friendsgiving dinner at my friend's home. I've been managing some gut issues lately and had been eliminating several foods to try to identify where the problem was coming from. After a month with no wheat and two weeks without any onions or garlic, I wasn't exactly sure what would happen if I had some stuffing... but I really wanted it!  I actually did use this line of reasoning while I ate.  Will I do any permanent damage to my body by eating this? Not likely, no. Will I pay for it later? When I made the decision, I wasn't entirely sure, but I thought it was possible, which impacted my decision for quantity of stuffing that I took (dose). And yes, I felt like crap from it.  But was it worth it? That's very individual, and up for me to decide, and now I have data. Next week when I'm home for family Thanksgiving, I get to decide if I want to repeat this same thing knowing what the likely outcome will be, or not.  But I'm empowered to determine what I do to my own body, and that's something I think we can teach our patients, too. 

What else can we do as physical therapists to help our patients who are experiencing pain?  We need to help make sense of their pain using their own understanding of what's going on. A person who thinks their "back is out" can't just be told "that isn't really a thing, backs don't ''go out.'"  They'll never buy into your message if they have a belief of what's wrong and you just strong-arm them into an opposing idea.  So instead, we acknowledge their beliefs, educate them on how adaptive the human body is, and we facilitate cognitive restructuring.  An example that was suggested in the class was "I bet someone has told you that your spine is twisted," and by acknowledging their perspective, you can try to bend that belief just a little bit, "but actually your pain could be from something else, so why don't we work on getting you moving in ways you can tolerate."  You create a small hint of doubt into their beliefs and see if the patient gives you an opening and slowly you can chip away at the beliefs over time.  We can facilitate adaptability by using intentional application of specific stressors that induce adaptation for increased resiliency, and this includes with beliefs. We must meet our patients where they are at with the psychological and physical approaches, progressive loading ooth their thoughts and their tissues, which might be a really little bit of loading at the start, but sometimes that's all they can manage. We work hard to encourage their autonomy and self efficacy.  One of Greg's quotes which I really enjoyed: "Requirements for adaptability: 1) Human. 2) Not Dead."  He also made sure to include a statement about how physical therapists don't fix people.  We facilitate them.
Bob Ross


And so physical therapists need to understand barriers to recovery, which could be at the tissue healing level, or could be in the psychosocial realm, or a whole host of areas in between.  And we need to appreciate that what we do is, in fact, an art, while also being a science.  That makes Greg Lehman just like Bob Ross, I think.  He painted this one beautifully. So many happy trees.

And with that, I'll finish with another quote from the course "Limping is a helpful adaptive pattern. It is successful in keeping people moving. It decreases pain. But should we advocate for everyone to start limping?"

Thanks so much, Greg.  I hope you'll come back to the USA soon!


Monday, October 21, 2019

Rainy Days = Continuing Education

Steve Allen assesses the Lumbar Spine
The rains are upon us here in Seattle. Gross!  If you've never been here during the doom and gloom season, what you've heard is true.  It's grey, dark, cold, wet, and everyone is a bit more cranky.  (Or maybe that's just me?) But the leaves are beautiful to look at and the candles are lit and ALL the blankets are ready to get cozy and it's hot chocolate season... so that's all exciting.  And what better way to hide from the weather than to take some continuing education courses?

This past weekend, I completed my fourth NAIOMT (North American Institute of  Orthopedic Manual Therapy) course.  I've previously written about my experience with these courses on the blog here following the last one I took way back in 2017.  Since I started working at Seattle Children's Hospital in 2017 I've used considerably less manual therapy so these classes have fallen lower on my learning priority list.  The kids don't tend to need it so much and I've learned so much about the impact manual therapy sometimes has on patients psychologically that even when I'm in the adult clinic, I'd prefer to use it less.  As I continue to grow in my career, I keep learning what I like and what I don't which changes how I interact with patients. In general, I try to avoid "doing things to patients" and prefer to help them learn how to do things for themselves.  That's not to say I don't use manual therapy at all... it just isn't my first step most of the time. I do occasionally work with adults and they typically have expectations of receiving this sort of treatment, particularly because of the way the clinics I work at organize their schedules.  Sometimes they really do need it - but for sure not always.  And in the State of Washington, physical therapists who manipulate the spine need a special certification with specific continuing education, so to maintain my certificate, I took this class.
Amanda Scharen teaching lumbar instability tests

To be fair, these NAIOMT courses aren't just about manual therapy, either.  Sure, the photos I've included are of a manual technique performed by Steve Allen, NAIOMT faculty member and a Physical Therapy Historian who exudes love for the profession along with my friend and Director of Therapeutic Associates - Queen Anne - Amanda Scharen. I'll even quote Steve from this weekend, "Manual therapy is a small ut vital part of our practice.  Combine it with exercise for the best outcomes." But these classes also include advanced review of anatomy and biomechanics, which is important when you haven't studied it specifically since PT School.  There are many cases presented during the weekend which challenge clinical reasoning.  The partiipants of NAIOMT courses are all physical therapists so there are really interesting discussions about evidence supporting different topics, sometimes even debates, and some of the scientific literature is included for participants to read ahead of time.

SI Joint - from Wikipedia
For example, this course included this paper "Evidence-Based Diagnosis and Treatment of the Sacroiliac Joint" from 2008.  I had not previously read it, but did learn this in PT School.  It describes the different tests you can use to try to identify if the joint between the sacrum at the base of the spine and the ilium (pelvic bones) is contributing to a person's pain presentation. During class this weekend, we had a discussion on whether or not this joint moves at all - as many believe that it is fused and therefore immobile. I personally believe that the SIJ does move for three reasons: 1) I have seen too many patients with pain that improves with changes in their pelvic positioning or with exercises training stability for this region 2) When I have a specific pain pattern, treatment to my own SIJ resolves my symptoms almost immediately, and 3) I don't think women would be able to give birth if this was an immobile structure.  Doesn't really explain why it would be as mobile in males - but I don't usually see this as a problem region in men as much. If you're a PT who hasn't been exposed to the tests that may help identify the SIJ as a contributor to pain, the article outlines each one and presents pretty good psychometric properties when using them as a cluster.  Interestingly, the author describes the tests and then admits that he no longer uses SIJ manipulation as a treatment because it tends to be unsuccessful.  He recommends stabilization exercises and, if that is unsucessful, injection into the joint.

What I've come to understand more and more is that the healthcare you receive from any provider is biased to the beliefs of that provider.  For example - if you came to see me and I determined that you had tight hamstrings, I tend to guide you to strengthen the hamstrings in an effort to relieve some of that tension.  Some of my coworkers, however, would teach you how to stretch your hamstrings. There are articles supporting both methods. There are groups of people who support both sides. As a patient, if you don't have any prior knowledge on the topic, you're probably just going to take your therapist's word for it that they know what they're talking about.  As another example - I've been experiencing some really annoying abdominal pain for the past several months.  My GI doctor sent me for tests like an endoscopy and colonoscopy and is treating me for acid reflux.  Yes, the medication made me feel better, but I didn't think that was the underlying problem, so I sought out another opinion.  She's treating me for something entirely different.  Her beliefs about my symptoms match more with my own beliefs of my symptoms and I'm far more optimistic that I'll have a good outcome with this method.  As long as the patient gets better, does the method used to get there even matter? Regardless - the evidence is strong that for low back pain, physical therapy should be your number one choice for care.  Not medications.  Not injections.  Not surgery.  Not imaging.  PHYSICAL THERAPY.  Get PT First.

These are the things I think about during these dark Seattle fall-winters.

I have another continuing education class coming in two weekends.  I'd imagine it will still be raining then... so a blog post about it is likely.  It's very different from this one, so that will be a fun juxtaposition.


Thursday, March 7, 2019

To Dynamic Valgus - Or Not to Dynamic Valgus? That is the Question

Ann Strother
I was recently watching a Medbridge video on knee injuries when this image appeared on the screen.  HEY!  That's Ann Strother!  Hey girl!  A UConn Women's Basketball star overlapping with two of my years there as team manager, professional basketball player in the WNBA for a few teams while I was working for the Connecticut Sun, on my list for top 10 most beautiful three-point shots, and for sure one of the kindest people on Planet Earth - I was so excited to see her on the screen - except that it was with regard to knee injuries. 

The video was discussing her inverted "V" position called knee valgus which, according to several research articles (like this 2005 paper, and this 2003 paper, and this 2018 paper) may be one of many factors that increase risk of ACL injury in female athletes.  Medbridge had used this image demonstrating her continuing to exhibit this "faulty pattern" after already having had torn and rehabilitated from tearing her ACL. Ann tore her ACL during her sopomore year of high school.  Despite the injury, she was the 2002 Gatorade High School Basketball Player of the Year (her high school senior year) before heading to UConn where she was ultimately a two-time NCAA National Champion.

Kevin Durant
Anyways - seeing her on my computer made me think back to a few weeks earlier when I headed to California to see the Golden State Warriors play against the Los Angeles Lakers only for LeBron James to be out for the night.  I wrote about that here, but while watching the game, I observed that same knee posture repeatedly demonstrated by Kevin Durant of the Golden State Warriors.  See how he's standing at the free throw line about to shoot with his knees almost touching and his feet wider than his shoulders?  He does this a lot.  It's the same position.  While sitting at the game, I snapped this shot and sent it to all my favorite physical therapists and my current student in the clinic... because this knee position is repeatedly considered to be a big problem.

So... is it really a problem?  According to a lot of research, as I've previously mentioned, yes it is because of it's increased risk for injury.  But... is it a problem for Kevin Durant?  Should we be correcting this position in all of our patients who exhibit it?  Is it still a problem for Ann Strother, who I'm pretty sure is not currently playing basketball... but is still running around chasing after her two young children?  What I'm saying is - does every person who shows up in the PT clinic with this presentation need to have it "corrected" or do only some of them need to change it?  Or should we not be correcting it at all?  ACL injury prevention programs constantly work to strengthen the body to prevent exhibiting this type of movement and in PT school we're trained to squat "perfectly" without showing this pattern.  I'm constantly telling my patients to keep their knees out...but half of the time I'm wondering if it really matters. This is the movement pattern I see DAILY in my patients at Seattle Children's Hospital, most frequently in teenage girls who have knee pain, but certainly in boys and in all ages and with varying conditions.  I can tell you from experience that changing the squat position so that they don't do this inverted V is usually much less painful in many of these patients.  I can't tell you that training them to move without the V will prevent them from having an injury later on in life.

So what do we do about it?  As Robert Frost says, "Two roads diverged in a wood..." There appear to be different approaches to dealing with this presentation.  On the one hand, you can work to strengthen and reinforce a more "sturdy" pattern with the knees more straight above the feet rather than angled inward.  Glute strengthening, squatting, and training "proper" jump and landing form tend to be the typical components of a rehab program that works on this pathway.  Repeatedly trying to target a better posture and moving away from this dynamic valgus presentation is a common treatment approach. 

But Kevin Durant is paid about $30 Million per year... do you think he's going to let me change his free throw shot form?  Or anyone on his sports medicine staff for that manner?  Is he actually stable in this position?  Does he train in this position?   So the other option, that some people are now advocating for, is to train into these "suboptimal" positions on purpose.  There are recommendations to purposefully train ankle mobility and control into the position that is common for ankle sprains, particularly in those patients who have already sprained an ankle.  the thought process here seems to be that you can purposefully move into these patterns and try to develop control there so that you're less likely to injure yourself if you end up in that position.  In my search for literature on this approach, I came up empty-handed for scientific papers.  I know that when I injured my ankle years ago, putting it into the position of injury was painful and I wouldn't want to put myself there... years later I still don't purposefully do that motion... but if I play sports and accidentally end up there, I could see how I might be risking injury because I haven't trained my body to tolerate the position.  I did find some non-scientific articles that suggest doing this approach, like this one that discusses the idea of purposefully training into the movement patterns that you were injured in.  There are some people that suggest that if you don't train the injury pattern, you won't be resilient enough if life or your sport puts you into that position and you'll suffer another injury. 

And so...to dynamic valgus or not to dynamic valgus... that is the question. I'm here to tell you that I don't know the answer.  There's not enough evidence to support one way or the other - though there is definitely evidence showing that this position increases risk of injury - so the two approaches both suggest we need to be able to either avoid the position or control the position - not just ignore that position.  I think it might be a combination of both approaches.  I'm certainly not about to go give my patients who squat with dynamic valgus heavy load and have them repeatedly use that pattern - because that seems harmful, and as I've already written - we should Do No Harm.  But I'm also not afraid to consider putting people into and out of positions like this inverted V to see what they tolerate and show them that the human body can do some fascinating things.  What do you all think?



Sunday, September 2, 2018

"Like A Girl"


Physical therapists observe how people move and try to guide them in ways to move more efficiently. In case you missed my previous post "What do Physical Therapists Do: Installment #1 - We Look at Mechanics" - you can review that one here for more specifics and then come back...  Go ahead, I'll wait.

Welcome back.  Today we're getting a tiny bit political.  Not White House political...good heavens no.  This is a social issue.  You may feel like I'm rambling... I felt that way, too.

I'm currently playing in an adult co-ed softball league... see photo to the left where I'm rocking  my tall socks, batting gloves, and BoSox hat.  Have to look the part... and keep my hands soft... they're my money makers!  I digress.  I was warming up with a teammate, progressing our throws into longer distances, chatting about our days, and I observed that he was throwing almost exclusively from his elbow, no rotational motion of his trunk, no follow through, not really using his legs at all.  I've only played with him a few times before, but I was concerned that he might hurt himself.  I asked him, "Who taught you how to throw?" And he said, "Why, do I throw like a girl?"

Poor guy - he never heard the end of it from me. The whole night. I'm still proud of myself for the timing and word selection of my immediate response - that he should wish he threw like any of the girls on our team. My female teammate was warming up next to him, snapping her tosses with beautiful efficiency and consistently reaching her target.  He did apologize.  I'm sure he didn't intend to use those words.  I'm sure he didn't mean to put down the entire female gender in a flippant manner.

I'm definitely not an expert on throwing mechanics, but I know a few things that could have helped him get better.  More importantly, I could have given him a few tips that might prevent him from having an injury.  None of those pointers were provided because I was too stuck on his words.  I don’t walk around making suggestions to random strangers- though sometimes I want to.  I don't go to a gym and interrupt others who are working out to change their mechanics, even if it makes me cringe.  But this is my fun time... and I really hate having to play physical therapist at the field. From a Physical Therapist's perspective, I was concerned that he could hurt himself (and his throw is inefficient if he cares about being any good at rec softball).  He's not just looking like he's going to hurt his elbow and shoulder, his back is taking a toll every time he tries to make a long throw from the outfield.  

The next morning in the clinic (I couldn't believe it!) - one of my patients, a ten year old girl, was wearing a "Like a Girl" tee shirt.  I high-fived her!  #GirlPride I asked her about her shirt.  She said girls can be superheroes.  I love working with children.  They're hilarious.  Anyways... I had just started getting over the little softball episode, when more situations like it occurred.  Maybe I was already on the lookout for them because of it - but with repeated episodes, this blog post was born.

A few days later, Breanna Stewart was named MVP of the WNBA! I was able to attend her press conference where she made an amazing speech about using her platform to promote the issues she finds important to improving the world.  The posts from the league and various media sources had the worst comments!  Terrible.  She's trying to bring awareness to important issues - like registering to vote - and someone posts a comment with a photo of an empty kitchen - like that's where she should have been instead. I'm so disgusted.

And then another episode.  I was working with a young male who told me that he wouldn't do some of the exercises I recommended for his home exercise program because they were "mom exercises."  I had asked him to deadlift a barbell that was not loaded so I could see what his form looked like and had recommended some accessory exercises to supplement the workout.  He said he may as well go to a Pilates class because that's what moms do.  And, though I tried, I failed to make any change in this perspective.  These are learned behaviors! 

During the 2018 NCAA Basketball Tournament, 16th-seeded UMBC Men's Basketball upset first-seeded Virginia.  Several people in my life - and boatloads of people on social media - said it was the first time this feat was ever accomplished. WRONG.  It was the first time in men's college basketball, but Harvard Women's Basketball had upset Stanford Women's Basketball in a 16-seed upsetting a one-seed twenty years earlier.  Women did it first in 1998.  I spent days correcting everyone, responding to posts online.  I'm not really sure why all of these things keep bothering me.  I can't explain it.  Maybe educating others is the best I can do to start bringing awareness to what people are saying, but for the sake of my niece, my cousins, my friend's daughters, my young female patients - and all the young people - boys and girls, we MUST do better.

Words Matter.  Don't let these occurrences continue.  Speak up.  

Thursday, August 16, 2018

Online Knee Seminar and Three Key Components to Patient Care

© Drpluton
ID 8194008 | Dreamstime Stock Photos
I’m starting to look like a groupie of Champion Physical Therapy and Performance in Boston, MA- but that’s for good reason! I’ve previously written about this crew, particularly Mike Reinold and Lenny Macrina here and I just completed their Online Knee Seminar.  This class was awesome- and I’ll tell you about it - but I also want to share some of the underlying themes about patient care that were introduced that relate to how they (and I) practice physical therapy. This could be particularly helpful for the new grad PTs entering the work force after passing the NPTE exams in July but as a PT who is almost four years into my career, I still learned a ton from taking this class.

On my first orthopedic clinical rotation during PT School, I worked with Craig Katko - then the PT for the Connecticut Sun WNBA team and now the PT for the New England Black Wolves National Lacrosse League team. As far as clinical rotations go, Craig was the best instructor for my first time working in orthopedics.  I was very lucky to have that opportunity. As I prepare to take my first student, I'm reflecting on what my rotations were like and what helped me most.  What I remember from my time with Craig was mirrored in the introductory portion of the knee seminar, and I was grateful for the refresher:

First - Patient history and evaluation components are essential to guiding your treatment, but learning how to do an evaluation, and getting to be good at it, is challenging.  Craig recommended that I find an evaluation system that I trusted to use consistently until I was confident in recognizing patterns, and then to later on use as a fall-back plan.  He lent me his copy of Grey Cook's "Movement" book to read - and I learned the SFMA - which I used for my rotation with him. Lenny Macrina has mentioned the SFMA in a few of his courses, and every time he mentions it, I think to myself - he's not checking cervical range of motion in a patient with knee pain.  (Are you, Lenny?)  New grads - you may want to check out the SFMA principles if you haven't yet learned them - especially if you're not confident in your evaluation skills, yet. Now, four years out of school, I don't use the full SFMA for every patient... but I use many of the principles from it constantly. Specifically - I examine neighboring joints proximal and distal to the pain region and check mobility and stability in those regions - both key concepts in the SFMA.  These apply to the knee in numerous ways.  You must clear the spine with patients who have pain in their extremities, and for a patient with knee pain, you need to consider both the hips and feet.  When a patient doesn't fit a pattern that you've come to recognize, the SFMA is always there as an option to re-assess them.

Second - Don’t get too bogged down with diagnostics.  As the PT profession moved into Direct Access and patients started coming into the clinic without seeing a doctor first, I was excited to try to identify patient pathologies. What I came to realize was a specific diagnosis usually doesn't really matter! There are a lot of structures involved in the knee (or elsewhere) that need to be checked, but special tests don't have great reliability and use of palpation to diagnose an isolated structure being injured is about as good as guessing.  As I've learned more about the biopsychosocial model, and treated more patients, it has become apparent that sometimes specific tissue diagnoses do more harm than good, and they often don't help guide treatment. For example, as described in the Knee Seminar, a patient can have patellofemoral syndrome from numerous causes: foot mobility or control issues, strength deficits or imbalances of the hips, overuse, improper jump-landing mechanics, body alignment considerations... the list goes on.  If you tell a patient that their leg is lined up improperly - something that genetically they're unlikely to change - you can create a fearful situation that is unnecessary.  I've actually come to prefer referrals that list a diagnosis as "right knee pain" because I'm not treating a diagnosis... I'm treating the specific person sitting right in front of me with their unique presentation. While clinicians do need to be able to explain what's going on to patients, you can do it in a way that will empower the patient/client to embrace their personalized recovery strategy.  I work with kids.  It's really easy to tell them that I can see some reasons why their knee might be hurting... tell them they're strong... and then give them a home exercise program with some things they can do to make themselves move in new ways that should change the way their body is loaded.

Third - Use functional impairments to guide treatment. I use the slogan "find a problem, fix a problem" as my guide.  This might infuriate some of my PT colleagues because it isn't how their belief system works... but there are lots of patterns that can be applied to all body parts for rehab and progressing through these in a sensible manner to achieve optimal function leads to patients achieving goals.   For example... if I'm working with someone experiencing knee pain and they can't tolerate going down stairs (function), I can break that down to see why (impairments).  Following the progression of working to improve inflammatory processes, then to restoring range of motion, then increasing strength, and finally focusing on proprioception/motor control/higher level activities applies to all knee pathologies, though the timeline of progression varies by person.

So these three concepts were identified in the introductory portion of the Knee Seminar and reminded me of when I first started learning about patient care.  I found these concepts valuable to get my career started and have built on them and developed my habits with additional continuing education courses... which leads me back to the Knee Seminar.  If you're looking for a continuing education course specific to the knee - this is the most comprehensive one I've seen. 

The seminar is broken down into seven key components: 1) examination of the knee, 2) treatment of the knee, 3) ACL, 4) Patellofemoral Syndrome, 5) Meniscus, 6) Articular Cartilage, and 7) Osteoarthritis.  There are videos for each section along with some key selected articles.  Just like I experienced with their Shoulder Seminar - the articles they picked were really useful and I'm glad to have added them to my library for future reference.  The top three considerations that I'm looking forward to implementing in my own patient care were 1) The biomechanics of the knee, particularly with regard to the forces at the patella at different points in the knee range of motion, 2) better understanding of the meniscus anatomy, how it moves, when it is stressed, and considerations with rehabilitation for repair versus removal, and 3) treatment options with regard to articular cartilage pathologies.  There are new surgeries (at least new to me) being used to treat these conditions - such as the OATS (Osteochondral Allograft Transplantation Surgery) and the ACI (Autologous Chondrocyte Implantation) procedures.  If you're a new grad and you haven't seen these yet, this course helped me understand the procedure and the rehabilitation protocols, but better yet - when you would use these treatments and why the rehab is progressed so slowly.  This was a great continuing education course!

Good luck, new grad PTs!  I hope this is helpful.  And just remember, ask for help.  And teach us more seasoned PTs the things you're learning in school so we can all make the profession better!


Sunday, July 1, 2018

Shoulder Care with Eric Cressey

Last weekend I jetted off to Denver for a visit with family and a continuing education course.  The family time was fantastic - a few hours of biking around Denver - far more than I'm used to doing as I'm not a fan of bike seats - some really delicious tacos - beautiful art and the backdrop of the Rocky Mountains!

The course was "Shoulder Assessment, Corrective Exercise, and Programming" presented by Eric Cressey of Cressey Sports Performance and it was hosted at Landow Performance in Centennial CO.  Loren Landow is the newly hired Strength and Conditioning Coach for the Denver Broncos and his facility is beautiful with state-of-the-art equipment and autographed jerseys all over the walls from numerous professional athletes.  His bio says he has trained WNBA athletes, too - so extra points in my book!  If you're not familiar with Eric's work, he's a Strength and Conditioning coach with facilities in Hudson, MA and Jupiter, FL and, though he is most well known for his work with professional baseball players, he also works with the general population and is considered to be an expert in the shoulder.  He's published tons of research and has a blog with articles posted starting in 2002 with regular high quality content.  I previously wrote about one of his older blog posts here.  Most importantly, Eric is a UConn grad, so I've followed his work since I first learned about him somewhere around 2005 when I was in a class with Dr. William Kraemer, one of Eric's mentors, and have been looking forward to meeting him and attending one of his seminars for a long time.

With Eric Cressey June 24, 2018
Why did I want to take this class?  Beyond wanting to hear Eric speak live and get the chance to ask him questions, I previously took a course with a strength and conditioning coach (Matthew Ibrahim) in conjunction with a physical therapist (Zak Gabor) which I wrote about here, and felt that learning from people with different backgrounds was really impactful for me.  The audience was primarily strength and conditioning coaches who work with baseball players... but there were also a handful of physical therapists, chiropractors, massage therapists, personal trainers, and baseball coaches.  People had traveled from Australia and Korea and all over the United States, some of which trained athletes from unique sports like Professional Disc Golf or MMA fighters. The variety of people present was really neat... but also, the content is applicable to so many other sports.

More importantly, I have been treating a lot of patients and athletes with shoulder injuries and recently completed Mike Reinold's shoulder seminar, but also wanted a live course to better observe how other providers evaluate and treat shoulder pathologies. Eric's approach to shoulder treatment does not look like Mike's.  They have different "favorite" screening tools and exercises that they use.  If you observe their social media, you could probably pick up on these differences and similarities.  I'd say the biggest overlap I observed was that both of them regularly use the prone low trap exercise for rotator cuff strengthening which Eric has a video for here.

When it comes to my work with the Seattle Storm, though, we also have to consider that we're working in an overhead sport with repetitive action.  Shooting a basketball is nothing like the motion of throwing a baseball, but it still requires significant mobility and stability - and very different from baseball, it requires the athlete to be reactive to opponent players slapping at their arms while they're doing it.  The arm care programs used by the Seattle Storm should not look like the arm care programs used by the Boston Red Sox - but the principles involved in developing them do match.

I learned a lot from this course which I'm still processing, but was able to immediately use some of the skills in the clinic. Here are my top 5 favorite Eric Cressey quotes and take-aways from the weekend.

1) The biggest key for the shoulder is "Keep the ball on the socket." Simple.  Having a better biomechanical understanding of the force vectors of the rotator cuff is vital. If the scapula is sitting in a depressed position, the lats may be over-active which will influence upward rotation when getting overhead.  Similarly, if the scapula is tilted anteriorly, could there be shoulder impingement with elevation or is there enough muscular balance to safely overhead press?

2) Rehab and training are the same thing!  I've previously written about physical therapists' role as strength coaches here - and this came up in the course.  Eric Cressey is not a physical therapist and he discloses this and discusses how he interacts with PTs all over the country.  So it surprised me to see the differences between what Mike Reinold and what Eric Cressey do considering this statement, but I would not expect Eric to be seeing athletes post-op day 1 following labrum repair.  So, I took this to mean that once the acute healing phase is completed, rehab and training are the same thing.  There is a need for progressive loading to tissues and a need to understand periodization, even if your PT treatment sessions are not written like a periodized training program.

3) Scapular winging is a garbage term. It does not describe what is going on with the scapula.  I document scapular winging all the time - so this will be a change I need to consider moving forward.  Is the scapula winging because it is anteriorly tilted?  Upwardly rotated?  Because there is a flat thoracic spine so the medial border is just more pronounced?  And is this inherently pathological?  Or just a finding that you're documenting.  I can't promise I'll stop using the term scapular winging entirely, but I can commit to adding at least one descriptor of the scapular position to better describe the situation moving forward.

4) Stop telling people to bring their shoulder blades down and back.  It would only be a slight exaggeration to say that Eric Cressey is begging people to stop using this cue.  Too many people use this resulting in patients pulling their elbows back with anterior humeral head translation and improper mechanics that we could be creating problems!  I asked him what cue he likes instead - and he said he manually puts people into the position he wants them to be in, using optimal muscle activation, until they can do it independently.

5) Push:Pull ratios are not accurate nor are they adequate.  It has been well ingrained into my training that for every push exercise, you should be doing at least 2, probably more like 3 pull exercises.  I've been trained to teach that focusing on the back musculature 2-3x more than the front helps combat many of the anterior shoulder issues that are seen in the clinic.  However, Eric points out two key points that make you think about this more carefully.  First, the push:pull ratio is almost always considered for front:back motion and ignores top:bottom... but both planes need to be considered.  I think John Rusin tries to deal with this by including upper body push, upper body pull, and carries into his 6 foundational movement patterns, but the balance needs to be considered for both planes.  Second: not all pushes can be considered alike.  The bench press is a push exercise that necessitates the scapulae being blocked on a bench... compared to the push up where they are moving freely on the body.  This is also an important consideration as you're not getting the benefit for scapular control through the pushing motion when doing a bench press - and Eric says he doesn't have his baseball players bench pressing.

I'd be lying if I said this even touched the surface of all the things I learned at the class... but these were big takeaways that made me think and will change how I operate to some degree.   Thanks for an awesome course, Eric!

Sunday, June 3, 2018

What Do Physical Therapists Do? Installment #4: We Return Athletes to Sports Participation

Welcome to the fourth installment of "What Do Physical Therapists Do?" I chose to use this as a recurring segment because there are several common misconceptions about what we actually do, probably because we do so many different things! This 2006 paper noted that over 1/3rd of participants surveyed (college-aged potential physical therapy students) were unaware of PTs' ability to help decrease pain and promote health. That same paper mentions the lack of knowledge of the general public regarding the amount of education required to be a physical therapist and what that training would include. 

Overall, the key underlying action of a physical therapist is guiding our patients or clients back to their optimal function - whatever that function may be.  I often feel like people think our primary purpose is to help people get out of pain, despite the report from the previously mentioned 2006 paper.  While pain relief is a consideration, it's really more about the activities. So this recurring segment looks at various ways we help people get back to their chosen functional activities.  In the past, I've discussed that we strength train (#3) here, we listen to the needs of our patients (#2) here, and we examine body mechanics with different movement patterns (#1) here

One of the most common questions I'm asked by patients and their family members is "When can I get back to X activity?"  In this scenario, X can be anything.  Some are obvious functions or activities that aren't surprising... when can I run or exercise, when can I lift my toddler, when can I go back to work, when can I walk without crutches, when will I be able to reach the top shelf of my closet... an endless list.  Some activities have been less obvious (or less sensible)... when can I get back to head-banging at concerts was a surprising question I've been asked by a gentleman recovering from neck pain after a car accident.  It surprised me - but that's what he wanted to do.  And why a teenager who had a severe injury on a trampoline would ever want to get back onto a trampoline shocked me... but they ask! (Side note - if I ever have my own children, I hope to find a way to ban them from trampolines.  SO MANY injuries.)

The activities are frequently sports-related so it is a responsibility of a physical therapist to clear athletes to return to sports. This week, I was fortunate enough to present the new Upper Extremity Return To Sports Assessment that will be implemented at Seattle Children's Hospital to the Sports Medicine Team of Physical Therapists and Athletic Trainers.  The program we developed has not yet been thoroughly tested despite being based on published research, so it's still a work in progress.  It includes a group of tests to assess athletes who have had upper body injuries and/or surgeries as criteria to get back on the field/court.


Seattle Children's Hospital already has protocols for returning kids to sports after ankle and knee injuries, so we had a template to use of what has been helpful in the past.  I like using the lower extremity assessments because they make it easy for a kid and their family to understand that they can go back to their sports when they pass all their tests. There are benchmark goals that help them progress in activity as you go along so having a series of tests at the end fits into the way things progress along the way.  Using tests and goals motivates patients.  For example, with consideration for surgical protocols and healing timelines, I tell kids that they can stop walking with crutches when they can stand on their injured leg for 30 seconds with steady balance and when they can complete 10 straight leg raises without any bend in their knee.  Those are usually components of their home exercise programs and they often know if they're getting better and coming closer to meeting the goal. The goals help motivate them to work on their home exercises and they're measurable.

Did you know that if you are a healthcare provider - of any kind - and you clear an athlete to return to sports prematurely, you can be held liable if they get re-injured?  You can.  Did you know that a physician who clears an athlete back to their sports usually bases this on a tissue healing timeline whereas a physical therapist who clears an athlete back to their sports bases the decision on movement mechanics and other test criteria - such as the tests in this protocol - to make the decision?  Something I find interesting about myself as a healthcare provider is that I rarely tell a patient to stop participating in an activity if they're tolerating it enough - but when it becomes my responsibility to allow them to return to a sport that a physician has discontinued their activity from, I'm much more confident in my decision if they have to complete tests showing they're ready in a controlled environment.

A basic summary of the categories of tests included in the protocol for upper extremity injured athletes returning to sport are as follows:
1) Range of motion comparison between shoulders with consideration for the total arc of motion for internal and external rotation.
2) Strength testing comparison for shoulder internal and external rotation as well as for grip.
3) Endurance testing observing how many push ups can be done with proper form.  There are published normal values for this test by age and gender and, in the USA, this is part of the physical fitness testing conducted.
4) Upper body stability testing including the upper quarter Y Balance Test and the Closed Kinetic Chain Upper Extremity Stability Test
5) Power assessment using a seated shotput test.
6) Biodex testing as available.

Using numerous published papers on each of these tests, criteria were developed and the sports medicine crew at Seattle Children's will start to use the tests to determine if kids are ready to go back to their activities.  There is still not enough published evidence for returning athletes to sport from any injury, so developing a protocol like this is not only challenging, but needs to be supported by clinical judgment.  If you or someone you know is being treated by a physical therapist to get back to playing sports, you should ask them what criteria they use to determine if you are ready.  Feeling good and being pain-free isn't enough and we want to prevent future injury as much as possible.

Sunday, December 24, 2017

Running Mechanics Assessment for Physical Therapists

Two days ago - I wrote that Physical Therapists should be looking at mechanics - triggered by a patient coming in needing their running mechanics assessed after a physical therapist said they didn't do this work.  I had every intention of writing my own blog post on some of the key things to look for to assess running - but then Mike Reinold posted a write up  this morning based on Chris Johnson's running training - and they're experts.  So rather than re-invent the wheel - Here's Mike's post from today entitled: "A Simple Approach to Running Mechanics for Clinicians." (Seriously this could not have been more timely!)

Quick Summary:  Chris and Mike are recommending you look at the Four S's: Sound, Strike, Step Rate, and Speed. While this is not exactly the same method that I assess running form - I'm thrilled to see how they do it, and I can't wait to update some of the techniques I've been using.  I'm big on listening to the sound that my patients make - with running, walking, jump-landing, and plyometric activities - so this was not new to me.  I've never seen an app to use for cadence - only learned about using a metronome which I have done on a few occasions.

Ultimately - check Mike's post to learn some simple things you can look at in a runner experiencing pain to try to fix their form.  If you can't fix it so they're pain-free, find someone who's an expert such as Mike and his crew in Boston or Chris who is here in Seattle.

Happy Holidays!




Friday, December 22, 2017

What Do Physical Therapists Do? Installment #1: We Look at Mechanics

Recent scenario evaluating a high school-aged patient: let's call him Bobby and pretend that he's referred with a diagnosis of shin splints. (We can get into "Shin Splints" not being an actual medical diagnosis on a different blog post).  The conversation went something like this:

Abby: Hey, what brings you in today?
Bobby: I'm here for biomechanics testing.  I want to get back to running ASAP.
Abby: That's awesome that you like to run. 
Bobby: I run track and cross country but my leg hurt a whole lot at the end of the last season.  I saw the doctor and he shut me down from running while I did 2 months of physical therapy elsewhere.  When I went back to the doctor, he said he needs the physical therapist to clear my biomechanics so I can return to running.  My physical therapist said they don't do that, so my doctor gave me a referral to come here instead. 
Abby: Wait.  WHAT????
Bobby: Can you test me so the doctor will know I can get back to running?  I feel a lot better.

SO MANY THOUGHTS running through my head.  Primarily - what did your previous physical therapist do if they didn't look at your biomechanics?  Is that really what happened? 

This person came to me after having physical therapy for several weeks because they had experienced pain while running.  He had done all of his prescribed exercises and was now pain free with walking outside of the boot, but returned to the referring doctor for clearance. At no point during the rehab process had he ever been on a treadmill, tried to participate in a return to running program, or been to the track. 

What did I do?  I proceeded to conduct a complete initial evaluation of this patient - no different from any other initial evaluation I would normally do for an injury to that body region. I am a full body-focused physical therapist, so I never examine an ankle injury without looking at the lumbar spine and the hips in addition to the ankles followed by full body motions and balance. 

Bobby's parent: Wait - why are you looking at his back?  And his hips? We already did physical therapy and his leg is what hurts.  And what difference does it make that it hurts his knees when he squats... he doesn't want to squat or lift weights, we're here to get back to running. When is the biomechanics portion of this session?
Abby: Let's do that right now!

Alright... I already know from my examination that there's no way I'm clearing someone for return to running based on intolerance to a double leg squat that doesn't even hit a 90* knee flexion position.  Running is basically repeated single leg squats so if you can't double leg squat, there's got to be a problem with at least one leg in single leg squatting - but, I still need to see how the running looks because I'm going to give them a new home exercise program and need as much information as possible.  Also - the patient came with a specific request - so I'm listening to their demands and being thorough.  The more time spent in evaluation - the more effective the treatment can be later. 

This is the moment when I cut the previous physical therapist some slack and think that they knew this person should not be permitted to return to run but both the patient and parent are pushing for it and so they're sending him back to the doctor.  Who am I to judge another physical therapist I don't even know based on a patient sitting in front of me?  I fear that we, as a profession, are often guilty of blaming our colleagues without considering the whole scenario.  I'm nowhere near an expert - and I also don't have any clue what this kid looked like before 8 weeks of physical therapy.

So I put him on the treadmill and had him run.  Fortunately, it didn't hurt... but it also didn't look good.  I recorded it so I could play it back to him and his parent.  Of course there are really excellent pieces of equipment available and there are physical therapists who are highly specialized experts who work with elite-level runners.  I am not one of those therapists and I don't have any special equipement.  I know the basics of what running should look like and when I watch someone running, I can make modifications to form based on the errors they demonstrate and help them progress back to running when appropriate.

At bare minimum, all physical therapists working in outpatient orthopedics and/or sports medicine facility have the responsibility to learn how to observe and correct basic mechanics of a squat, hinge, and running pattern in order to help their patients.  I'm willing to look the other way if you can't break down throwing mechanics and specialized sport activities like gymnastics moves and ballet positions.  But the squat, hip hinge, and running patterns are essential to far too many athletes and the general population.  There are tons of courses and materials on how to do it - or you should find a colleague who can help you out.  Again - I'm no expert.  I don't spend much time studying running mechanics because the basics are pretty easy to spot once you take the time to learn those. 

I don't know if the other physical therapist ever actually said they didn't do biomechanics assessments.  Perhaps the therapist was a new grad who wasn't comfortable clearing an athlete for return to activity - as this is often a responsibility left to the physician that barred them from participation in the first place.  Regardless - because this has happened multiple times (and potentially has even happened with patients I have seen that then went to a different physical therapist... I would never even know!) - my new reoccurring segment of "What Do Physical Therapists Do" has been launched with Installment #1: We look at Mechanics. In a future post, perhaps I'll even outline some of the common faults to look for - so stay tuned for that!

Take Home Messages:
1) If you are a physical therapist - it is your job to be assessing your patients mechanics - in numerous ways - to make sure they are properly moving. 
2) If you don't know how to assess running form, there are several courses available: on Medbridge or in person, so you can learn the basics.  Truly - the basics help clear up problems in a large number of people.
3) If the basics don't fix your patients' issues, find a physical therapist nearby who focuses on running mechanics and refer.  But you should know that it is a physical therapist's job to be "the movement specialist" and as such - we need to better inform the public of what exactly we do.  You could also record your patient running (with permission - from the back and the side) and get the consensus of your clinic colleagues so you can collaborate and improve your assessment skills. Or re-evaluate the patient using a body-wide system like the SFMA to see if you're missing something.  Or send them back to the doctor to make sure an underlying pathology is not present.
4) Take the time to listen to the patient and target their treatment to the goals they have stated.  I can't always put a patient on a treadmill and watch them run at an evaluation because sometimes that isn't appropriate - but if they're going to return to sports, they're definitely going to do it at some point.
5) Find Physical Therapist colleagues who focus their energies on different areas of expertise and develop relationships with your referring doctors.  For example - I know exactly who to call when I'm looking at an athlete with pelvic floor dysfunction. And I know which doctors I can call and say - hey - I just looked at Bobby - and here's why I don't recommend he return to running at this time.

Let's fulfill the role we are intended for and serve as The Movement Specialists.

(Disclaimer: No identifying or specific patient information is being released here - as this would be breaking the law.  Names are changed, injury is different, and lots and lots of patients want to run.)