02/20/2026
Rotator Cuff Dysfunction
Have you experienced or heard friends and family talk of the dreaded rotator cuff injury? Let’s deep dive into it.
—
The rotator cuff refers to a functionally related group of 4 muscles, that supports the shoulder joint via active stabilization and performs a variety of movements required for everyday life and sports.
—
Though there is no rest involved, S.I.T.S is an acronym we use to remember what is included in this functional group (Supraspinatus, Infraspinatus, Teres Minor, and Subscapularis). Movement involved with SITS are Shoulder Internal and External rotation, and the beginning range of Abduction. Therefore, throwing or hitting sports (think volleyball and baseball) amongst other activities oftentimes can cause pain, dysfunction over time.
—
In some individuals high strain and impingement can lead to tearing of the tendons of the rotator cuff. Studies show in overhead athletes, non-operative treatment ie. manual therapy and active rehabilitation are the gold standard for treating partial thickness tears (Reinholz et al., 2023). Motion is lotion.
—
In clinic, we often find Subscapularis in a dysfunctional pattern with teres minor as a classic antagonistic relationship.
References
Reinholz, A. K., Till, S. E., Arguello, A. M., Barlow, J. D., Okoroha, K. R., & Camp, C. L. (2023). Advances in the treatment of rotator cuff tears: Management of rotator cuff tears in the athlete. Clinics in sports medicine, 42(1), 69.