Internal Rotation (Down) With Resistance Bands
Strengthen your subscapularis and protect your shoulder joint with this targeted internal-rotation drill.
Primarily trains: Develops the subscapularis (primary internal rotator of the shoulder) as part of the rotator cuff, improving glenohumeral stability and internal-rotation strength.
Step-by-step demonstration
3 sets × 12–15 reps per arm, 45–60 s rest between sets; this rep range targets muscular endurance and hypertrophy appropriate for rotator-cuff rehabilitation and shoulder prehab.
2-1-2 — a 2-second concentric and 2-second eccentric with a 1-second pause at full internal rotation maximises time under tension on a small stabiliser muscle.
Exhale as you rotate inward (concentric), inhale as you slowly return to the start position (eccentric).
Step 1 of 2
Setup
Get into position before the first rep.
- 1Anchor the resistance band at elbow height on a door or fixed post — not at the top; elbow-height anchor ensures the resistance vector aligns with the rotation arc.
- 2Attach a handle to the working end of the band and stand side-on to the anchor, approximately 0.6–1 m away.
- 3Hold the handle in the hand closest to the anchor; keep the opposite hand on your hip or relaxed at your side.
- 4Bend your working elbow to 90°, upper arm against your side and parallel to the floor, forearm pointing toward the anchor (externally rotated start position).
- 5Brace your core, stand tall, and retract your shoulder blade slightly — avoid shrugging.
Step 2 of 2
Execution
The actual movement, one rep.
- 1From the start position (forearm pointing toward the anchor, elbow at 90°), engage the subscapularis by drawing your forearm inward across your abdomen.
- 2Rotate your forearm through a full internal-rotation arc until it points forward or slightly past the midline of your body — roughly 70–80° of rotation.
- 3Keep your upper arm pinned against your ribs throughout; only the forearm moves.
- 4Pause briefly at full internal rotation, feeling tension in the front of the shoulder.
- 5Slowly return the forearm back to the externally rotated start position under control, resisting the band's pull.
- 6Complete all reps on one side, then reposition and repeat on the opposite arm.
Form cues
What a good coach would say in your ear.
- Elbow stays glued to your side — the moment it lifts, the exercise becomes a row.
- Move only at the shoulder joint; your wrist, hand, and elbow angle stay fixed.
- Think 'forearm sweeps the floor' — the arc should feel smooth, not jerky.
- Tall chest throughout — no rounding the upper back to gain extra range.
- Control the return: the eccentric phase builds as much strength as the concentric.
Avoid these
Common mistakes.
The technique errors that quietly undo your training.
- Elbow drifting away from the torso: breaks the fixed-axis rotation and recruits the anterior deltoid instead of the subscapularis.
- Using momentum or a wrist flick to complete the rotation: removes rotator-cuff load and risks impingement at end range.
- Anchor point too high: changes the resistance angle so the band pulls the shoulder into elevation, stressing the AC joint rather than training internal rotation.
- Excessive trunk rotation to complete the movement: indicates the band is too heavy; reduce resistance to keep the torso still.
- Rushing the eccentric return: the subscapularis works hardest controlling the external-rotation return — going fast wastes half the stimulus.
Variations & progressions
Make it harder. Make it easier. Make it fit.
- Regression — Isometric internal rotation: press your fist into a wall with the elbow at 90° for 10-second holds to build initial motor control.
- Progression — Internal rotation with arm abducted to 90°: perform the same movement with the upper arm raised to shoulder height, increasing the functional demand on the subscapularis.
- Equipment alternative — Cable machine: use a low-to-mid pulley for a smoother, more consistent resistance curve.
- Bilateral variation — Prone dumbbell internal rotation: lying face-down on a bench, rotate a light dumbbell from the 90° external-rotation position downward toward the floor for added eccentric load.
Safety
Avoid this exercise if you have an acute subscapularis tear, post-operative shoulder reconstruction, or active shoulder impingement syndrome until cleared by a physiotherapist. Individuals with a history of anterior shoulder dislocation should begin with isometric holds only and progress under supervision. Use the lightest band that allows full, pain-free range of motion; pain at the front of the shoulder or in the bicipital groove during rotation is a red flag — stop and consult a healthcare professional.
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