Rotator Cuff (SITS)
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The four rotator cuff muscles — Supraspinatus, Infraspinatus, Teres minor, Subscapularis (SITS) — that rotate and stabilize the shoulder joint.
Detail
The rotator cuff muscles (SITS) rotate the shoulder joint (Ellison, 1991). They are the supraspinatus, infraspinatus, teres minor, and subscapularis. The anterior-view diagram shows the subscapularis and glenohumeral joint; the posterior-view diagram shows the supraspinatus, teres minor, and infraspinatus. Important note: ensure that only low resistances are used when training the rotator cuff. The recommended exercise is internal/external rotation.
Key facts
- SITS = Supraspinatus, Infraspinatus, Teres minor, Subscapularis.
- Function: rotate (and stabilize) the shoulder joint.
- Use only low resistances when training the rotator cuff.
Connections
- Supraspinatus — abducts the humerus.
- Infraspinatus — external rotation.
- Teres Minor — external rotation.
- Subscapularis — internal rotation.
- Rotator Cuff — Use Only Low Resistance — use only low resistances.
Sources
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Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.