High Velocity Fastballs vs Shoulder Stability
The NY Times published a great article this weekend on the relationship between shoulder stability/strength/cuff length. Last season, several well known major league pitchers lost critical speed on their fastballs with no reports of pain or injuries. Mike Marshall, a former Dodgers relief pitcher and Cy Young Award recipient, now Ph.D. in exercise physiology says that “when baseball pitchers lose release velocity, it is always a result of the decrease in joint stability.”
If I am referred someone recovering from a shoulder injury for exercises, I ALWAYS make sure the person can maintain joint stability before progressing them to any other arm/shoulder exercises.
Mike Reinold has some great articles on shoulder strengthening.
Author: RyanOrser
2 Comments
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Comments
I completely agree! Typically speaking, a change in the thrower’s joint mechanics results in a decreased velocity. If the individual is lucky, this manifests FIRST as decreases in throwing velocity so that it can be corrected before pathology begins. Unfortunately, in many cases the loss of velocity does not appear until after injury has occured. Although, I am not sure that I believe instability is the main issue in these cases. Typically, it is the increased posterior inferior joint capsule that is problematic vs increased mobility in the anterior capsule. Recently, I have discussed post-surgical rehab with a sports medicine ortho for the Cleveland Indians and he is recommending posterior/inferior joint capsule stretching even 2 weeks post-surgery for SLAP repairs.
Although we need more research regarding the relationship between scapular stability and shoulder pathology, shoulder impingement and instability is proven to be associated with loss of dynamic scapular stability.
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