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Brian Schiff’s Blog

Injury Prevention, Sports Rehab & Performance Training Expert

Archive for 'shoulder injuries'

In the past, I wrote a post about Crossfit and shoulder pain based on a 38 y/o male client of mine.  Click here to read that post. In my prior entry, I discussed differential diagnosis of rotator cuff and labral pathology, as well as my treatment approach for that client.

If you follow my blog, twitter feed or webinars, you know I treat a lot of Crossfit athletes.  Recently, I worked with a 25 y/o female suffering from marked shoulder pain that was keeping her out of the gym.

kettlebell_workout_single_arm_snatch_18295av-18295bu

Below are the key findings from her intake on 8/30/13:

  • Onset of left shoulder pain on 8/8 related to snatches
  • Right hand dominant
  • Intermittent pain if sleeping on her left side
  • Full AROM
  • Mild weakness with supraspinatus and external rotation on left
  • Positive impingement signs
  • Positive O’Brien’s test (labral test)
  • Positive sulcus sign bilaterally (indicates multi-directional instability or MDI)
Sulcus sign

Sulcus sign

Treatment intervention

  1. Rhythmic stabilization and PNF exercises
  2. Rotator cuff and scapular strengthening
  3. Closed chain stabilization training
  4. Game Ready (cryotherapy)
  5. Home program issued at visit #1

I saw the patient once per week and she did her home program for 4 weeks.  At week 4, we gradually began allowing her to do some modified gym workouts but still no snatches or full overhead work.  She was pain free at this time and all impingement/labral signs had resolved.  At this point she returned to some wall ball drills (limited height) but still no snatches.

The client’s final visit was on 10/2/13.  Her Quick Dash percentage of perceived shoulder dysfunction was now 0%.  She was symptom free, but more importantly she had a great understanding of how to modify her lifts, loads and volume based on her multi-directional instability.  She was now aware of how her instability impacts her shoulder in “at risk” positions and in the face of fatigue.  This brings me to the primary reason for this second post related to Crossfit and shoulder pain.

In my initial post, I focused on overuse and shoulder inflammation as a result of poor mobility, muscle imbalances and a lack of physical preparedness to do high intensity exercise like Crossfit.  On the other end of the spectrum lies the unstable shoulder.

Hypermobility and/or shoulder instability is a major problem for those doing Crossfit in light of the following:

  1. Many lifts and exercises put the shoulder in “at risk” positions
  2. Poor glenohumeral joint stability places more stress on the rotator cuff and long head of the biceps
  3. With the AMRAP approach and train to failure nature of the WOD, fatigue is a given and this means the stabilizing muscles that matter most will often fail leading to a much higher injury risk

Key Takeaways

  • My client had secondary rotator cuff and bicipital irritation related to primary instability
  • Rest and a combined stabilization and cuff/scapular strengthening exercise program was effective in resolving her symptoms within 30 days
  • High load/high volume overhead lifts and those that place the shoulder at end range pose a higher injury risk for those with MDI or anterior instability
  • Shoulder stability work trumps mobility work in those with shoulder instability – this often runs counter to traditional approaches that tend emphasize better mobility (one program does not fit all)

Closing thoughts

We must keep in mind that the shoulder is inherently unstable in order to allow us the freedom of movement necessary to perform the various tasks and exercise.  With that said, repetitive movements and lifts can create micro and/or frank shoulder instability over time.  Those with a history of shoulder subluxation/dislocation/instability are a high risk group to begin with. Adding high loads to failure places the shoulder in a fatigue and compromising state.  As a coach, competitor or health professional, we must remember that even the best intentions and coaching can fail us if the risk of a lift outweighs the reward.

As I have said before, anyone who decides to do Crossfit MUST get a proper assessment prior to starting to reduce injury risk. Ideally, this assessment would begin with a full FMS to help uncover any mobility or stability issues and asymmetry.  Keep in mind research reveals that females will almost always score a 3 on shoulder mobility and many may be hypermobile. Conversely, they tend to score lower (1 in many cases) on the trunk stability push-up.  Any pain with screening would necessitate a referral to a PT or MD for further evaluation.

Trainers cannot be asked or expected to catch multi-directional shoulder instability.  However, they can and should be aware of relative risk, anatomical tendencies and red flags that may predispose clients to injury.  For those wanting to be the best in the business, I would suggest developing a system for assessing clients and partnering with allied health professionals like me to incorporate best practices in their business.  Perhaps most importantly, trainers and coaches must be willing to adapt, limit, or eliminate exercise that does not fit the needs and abilities of the clientele.

The random nature of the WOD makes it difficult for unassuming clients to judge how best to fit in the Crossfit model if they have a dysfunction or injury concern.  My goal is always to empower people with knowledge about their body and sound advice for optimal training.  For those intent upon getting back to Crossfit after injury, I work hard to normalize their function and offer tweaks and modifications to prevent re-injury.  Prehab is a must for this population.  But in the end, some shoulders will simply not be able to handle the rigors and intensity of Crossfit.

So, one of my biggest pet peeves as a PT is seeing athletes hurt as a result of poor coaching and training.  Overuse injuries provide lots of clients for my practice.  While this is good for business, I would really like to help prevent these injuries.  I need your help.  It all starts with education and a willingness on the part of health and fitness professionals to advocate strongly for our young athletes.

Consider the following scenario: a 14 y/o freshman left-handed pitcher presents for rehab to recover from Little League Shoulder. He was hurt on the second day of his high school’s fall conditioning program.  He was being forced to throw in excess of 200 feet.  His exact words were, “I was sore after day one, but I felt my shoulder explode on the second day of the program.”  Think this is a coincidence?  Hardly.

Another player from the same school (a sophomore right hander) is also in my clinic recovering from an avulsion fracture of his medial epicondyle that he too suffered on the second day of the same throwing workout.  I emailed the left-handed pitcher’s father with details about throwing biomechanics and how they decline with long distance throwing.  I also expressed my concern over the coach’s aggressive throwing program.  The father emailed back and said he too disagreed with the throwing program.  However, the coach simply told him his son had “not been properly coached” prior to getting to his program.  Are you kidding me?  Look at the images below to appreciate the type of damage done by overzealous throwing programs.

Coaches need to be more accountable to their training programs and philosophies.  Both of these players are missing no less than 3 months of baseball because the coach is clueless about the impact of aggressive long toss and how it may actually be detrimental to his players as opposed to actually improving their throwing technique/performance.

Click here for an article summary in JOSPT related to throwing biomechanics

So, how do we make a positive impact and prevent unnecessary injuries like the ones I have discussed?  I feel we need to look at the following strategies:

  1. Educate parents and coaches through talks and seminars
  2. Network with high school athletic trainers to ensure they have some feedback/input with respect to preventive training philosophies as well as a direct pipeline to coaches
  3. Reach the athletes directly through arm care screenings, FMS evals and professionally directed throwing programs
  4. Team with high profile baseball players or coaches who understand the game at the highest level and will spread the message in a positive and constructive manner
  5. Participate in CEU course for coaches and present on throwing programs, shoulder strengthening and mobility training

Based on these two cases, I am brainstorming ways I can become more of a “voice” in the baseball community in my area.  It is tough to convince pushy parents and misguided coaches that young kids don’t need to throw curveballs or that pitchers should probably not be forced to throw over 200 feet in hopes of increasing arm velocity.  But, we need to step up and make a difference or more young kids will be suffering from tendinitis, Little League Elbow/Shoulder, labral tears or other overuse injuries.

Click here for an abstract reference with respect injury risk and innings pitched per year

As a father, coach, educator and physical therapist, my personal mission is to make a difference in the lives of those around me. I know many may simply be unaware that there is a better or safer way.  As the emphasis on early specialization continues to grow in our country, now is the time to take action and help stop many of these injuries.

I work with several overhead athletes ranging from swimmers and tennis players to professional baseball pitchers.  One consistent issue I see is tightness in the anterior chest wall coupled with poor scapular activation and stability.  For that reason, I often turn to snow angel exercises.  I wanted to share two variations I have written on before.  The first version utilizes a foam roller.  The movement is performed throughout a full arc of movement upward and downward.

foam-roller-snow-angel-start

Top position

foam-roller-snow-angel-finish

Bottom position

Click here for more details on the execution of this exercise

This is an excellent exercise that can be integrated as part of a warm-up/movement prep session as well as used in recovery and the cool-down to address soft tissue tightness in the chest, facilitate proper posture and encourage scapular retraction and depression.

I often use this exercise in combination with pec minor myofascial release and thoracic spine extension mobilization on the roller.  It is a staple in all of my rehab and prehab programs with all of my overhead athletes.

The second version involves moving to an upright position and can prove more challenging.  The exercise is also designed to promote scapular stability.  When done properly, the client will demonstrate proper upward rotation (avoid tipping and winging of the scapula) on the ascent, and then emphasize recruitment of the rhomboids and lower trap to achieve proper downward rotation on the descent.

It can be a very fatiguing activity and somewhat frustrating for clients when starting out.  Be sure to cue them accordingly, and let them know it may not be easy to keep full contact.  It may also be necessary to utilize soft tissue mobilization for the pecs/lats as well as stretching beforehand to promote a more normal movement pattern.

Start position

Top position

Mid position

Mid position

Finish position

Bottom position

In this anti-gravity version fatigue becomes more of an issue, so emphasizing quality movement and using less repetitions may be indicated.  Do not push through any painful motion.

Click here for more details on the execution of this exercise

I always look for exercises that allow me to actively elongate traditionally short muscles while encouraging proper muscle activation of weak/poorly recruited muscles.  This exercise does just that.  If you are interested in the impact of pec minor tightness and shoulder impingement, check out the article from JOSPT below:

The effect of long versus short pectoralis minor resting length on scapular kinematics in healthy individuals

I am big fan of lat pull downs and pull-ups.  I think when done properly, this is a fantastic way to improve postural strength and safeguard the shoulder against injury.  In April 2012, I wrote a column on lat pull downs addressing shoulder pain (click here to read that post).

I decided to add to that previous post and discuss a recent article published in the February NSCA Strength and Conditioning Journal.  In the article, the authors present some research regarding how altering hand orientation and grip width affects muscle activity during the exercise.

Grip Width Summary

Lehman J Strength Cond Res 2005

  • No significant difference between narrow supinated grip and wide pronated grip with biceps and latissimus dorsi
  • Highest level of latissimus dorsi activity occurs with seated row with retracted shoulders

Lusk et al. J Strength Cond Res 2010

  • No difference in biceps, latissimus or middle trapezius activity (note – wide grip only slightly larger than narrow grip)

Sperandei et al. J Strength Cond Res 2009

  • In front of the head pull downs with standardized width and hand orientation revealed higher activation for posterior deltoid and latissimus compared to behind the neck
  • This study did NOT compare different grip widths

Hand Orientation Summary

Youdas et al.J Strength Cond Res 2010

  • Pronated grip during pull-ups (56 +/- 21% MVIC) was most effective for activating the lower trapezius compared with the supinated grip
  • Pronated grip also resulted in greater infraspinatus activation (45 +/- 22% MVIC) compared with the perfect pull-up
  • Perfect pull-up showed higher latissimus activity (130 +/- 53% MVIC) than the supinated grip of a chin up
  • Supinated grip of the chin-up revealed an increase in pec major (57 +/- 36% MVIC) and biceps brachii (96 +/- 34% MVIC) versus 44 +/- 27% (pec major) and 78 +/- 32% (biceps brachii) for the pronated version
  • Posterior deltoid showed no difference in all hand orientations

Lusk et al. J Strength Cond Res 2005

  • Pronated grip during lat pull-downs elicited a 9% greater muscle activation of latissimus dorsi compared to supinated grip
  • No difference between middle trapezius and biceps brachii in pronated or supinated grip

My Takeaways

  1. If your goal is maximizing latissimus activity and improving scapular stabilizer and rotator cuff function opt for the pronated grip
  2. Supinated grip elicits greater activation in the pectoralis major and biceps – no surprise here based on physics and kinesiology -> easier for clients to do and also not going to stress the shoulder as much in the presence of any inflammation or pathology
  3. Range of motion, scapular dyskinesia, pain, soft tissue restrictions and imbalances play a vital role for each client so they may need some preparatory work to make the most of this exercise
  4. Small tweaks (in my opinion) can make a big difference in comfort level and performance of the exercise (refer to number 3 for why) so do not be afraid to experiment between wide and narrow in a pronated grip
  5. The authors mention that if individuals elect to do the behind the neck version they should have adequate range of motion to do it safely.  Let me be clear – there is NO reward big enough to justify the risk involved in doing behind the neck pull-downs.  Save your neck and shoulders by eliminating this option altogether as I would bet most of us do not have perfect bony anatomy, mobility and optimal muscle firing throughout the motion to ensure that potential repetitive micro trauma will not occur over time.

For my CrossFit friends – optimal shoulder mobility, scapular stability and adequate thoracic spine extension and rotation is a must to minimize risk with kipping and less than perfect pulling form.  I much prefer unweighting or assisting the body through pull downs, bands or partner assists to build pre-requesite strength initially until the client is better able to manage the movement under full body weight.

Quality movement ABSOLUTELY matters over hundreds and thousands of reps.

As far as research goes, I think we still need further studies on grip width and specifically how it may directly impact not only muscle activation but force on the glenohumeral joint itself.  For me, I opt for pronated pull-ups and or pull-downs once per week with a moderate grip width in my own routine.  I hope this information serves you well.  Happy lat training!!

Working with athletes of many disciplines affords me an opportunity to look at many shoulders week to week. Increasingly, I am seeing more Crossfit athletes for various shoulder problems.  In many cases, they have rotator cuff tendonitis, impingement, AC joint pain, labral pathology or a combination of the aforementioned issues.  The other big group of athletes I see is throwers.

These two groups share many of the same dysfunctions including posterior shoulder tightness and decreased mobility. Tightness in the pecs and lats is commonplace.  I feel latissimus tightness often goes unnoticed or perhaps is not an area of emphasis in prehab/rehab plans.  Tight lats will restrict elevation and contribute to postural dysfunction.

With restricted elevation, athletes may turn to excessive spinal extension and/or rotation to achieve elevation necessary (e.g. overhead squats, snatches, throwing) and this can contribute to poor movement patterns.  I have also seen this impact volleyball players asymmetrically with serving and hitting.

Lat tightness can easily be assessed by placing the athlete supine and simply asking them to bring the arms completely overhead.  While most people do not have 180 degrees of flexion, I feel working to achieve elevation greater than or equal to 160 is completely reasonable.  The body often uses abduction and external rotation to make things work (and this is natural for throwers), but the more pure elevation capacity we have the the better.

Crossfit involves lots of pull-ups and throwing heavily utilizes the pecs and lats for acceleration.  It only follows that muscular tightness in this region may need to be addressed.  Step one often involves soft tissue mobilization/compression techniques.  I prefer to use a Trigger Point ball or Grid to work on the soft tissue mobilizing it on the wall (TP ball) or floor (Grid) in an elevated position.

Next, I like to employ active mobility work.  I recently featured a simple exercise using the BOSU Ballast Ball in my PFP column. The pictures below reveal a rolling double arm version, as well as a single arm method/progression.  These active movements can also be complimented by sustained holds as desired.

For a more detailed description and application of this exercise, click here to read my “Functionally Fit” column.  I had one Crossfit enthusiast see me for limited shoulder mobility as it was hindering his overhead lifts and causing back pain.  He had about 130 degrees of shoulder flexion.  Daily STM using the foam roller, mobility work and some stretching increased his elevation by 10 degrees in 2-3 short weeks.

So, the take home message is that overhead athletes should assess and address this limitation if it is present as it may cause kinetic chain issues and energy leaks.  Improving mobility will better enable utilization of proper muscle activation and optimal movement patterns.