High school baseball season is upon us. My son is a high school junior and recently verbally committed to pitch for a Division 1 school. He has worked hard to earn that offer, but the part most people do not see is the arm care and recovery work we do for him behind the scenes. Below is a recent picture of him in action.

 

I see lots of baseball players in my clinic ranging from 10 year olds to my MLB guys. One of the biggest issues I confront in my players (more commonly pitchers and catchers) is a condition known as internal impingement. While not the same thing as subacromial impingement, it still can impact the rotator cuff. Essentially, there is friction that causes irritation and in some cases injury to the rotator cuff and/or labrum. This usually manifests as pain in late cocking and the inability to throw hard without pain. Pitchers report decreased velocity and catchers struggle to thrown down to second with their their normal ease.

One of the most common issues leading to this is a loss of total shoulder motion on the throwing arm. Most notably, some players display significantly less internal rotation (IR) range of motion. Some loss of internal rotation is normal and expected over time provided they gain enough external rotation (ER) on the throwing side to counterbalance the asymmetry. Often, too much throwing early in the season or a big jump in pitch count/intensity/volume coupled with the ROM loss causes pain. This can occur suddenly or gradually build up over a few outings or games.


Continue reading…