Band Internal Rotation at 90 Degrees
With the upper arm out to the side at ninety degrees and the elbow bent, rotating the forearm forward and down trains the internal rotators in the exact position used to accelerate a throw. The subscapularis leads the movement, helped by the latissimus and pectoralis, which share that internal-rotation action. It complements external-rotation work to keep the cuff balanced. Keep it light and controlled.
- Equipment
- Band
- Type
- Strength
- Browse by muscle
- Latissimus Dorsi
- Browse by movement
- Shoulder Rotation
- Target
- Latissimus Dorsi
- Secondary
- Pectoralis Major Sternocostal, Deltoid Anterior
How to do it
- 1
Anchor a band at about head height and stand facing away from it so it pulls from behind and above.
- 2
Raise the working arm out to the side to ninety degrees and bend the elbow ninety degrees, forearm up.
- 3
Grip the band so it tries to rotate your forearm backward.
- 4
Keeping the upper arm parallel to the floor, rotate the forearm forward and down against the band.
- 5
Stop when the forearm points forward, hold a beat, and control the return.
- 6
Keep the elbow height fixed throughout. Exhale as you rotate forward.
Tips
- Do not let the elbow drop below shoulder height; the ninety-degree position is the whole point.
- Move purely by rotating; the upper arm should not travel forward or back.
- Pair this with external rotation at ninety degrees so you train both sides of the joint evenly.
Variations
Common mistakes
- The band is anchored in front of you rather than behind and above, so it resists the wrong direction and what you train is external rotation with this drill's name on it.
- The chest and lat muscle in by dragging the whole arm across the body, so the hand finishes in front of your chest instead of the forearm having only turned in place.
- You rotate past the point where the forearm points forward and let it swing on down toward your hip, which is the upper arm collapsing rather than extra range.
- The return is a snap rather than a lowering, and the band slings the forearm back into the end of external rotation, the least comfortable place for a loaded shoulder to arrive quickly.
- A band thick enough to make this feel like pressing is the wrong tool: the internal rotators are small muscles, and overloading them here usually shows up as a pinch at the front of the shoulder.
Frequently asked
- How many sets and reps of band internal rotation at 90 degrees should you do when you are new to the exercise?
- Two or three sets of 10 to 15 controlled reps per arm with the lightest band that gives you any resistance, holding a beat at the forward position. It belongs before pressing or throwing, or at the end of an upper-body session. Progress by slowing the return to three seconds and adding reps before you move up a band, since the point here is control at shoulder height rather than load.
- What can I use instead of a band for internal rotation at 90 degrees?
- A cable set at head height does the same job with smoother tension and is the better option if you have one. At home, a towel looped around a door handle gives you something to rotate against for isometric holds at the same angle, five seconds on and five off. Lying on your side with the working arm underneath and a light dumbbell in hand also trains internal rotation, though the arm sits by the ribs rather than out at ninety degrees, so keep some version of the raised position in the plan.
- What is band internal rotation at 90 degrees for, and who does not need it?
- It trains the internal rotators in the cocked position of a throw, which is why throwers, racket players, and other overhead athletes use it alongside external rotation work. It also gives the front of the cuff gentle work after shoulder trouble. Most desk-bound lifters are already stiff into internal rotation and short on the opposite, so if you only have time for one drill, do external rotation at ninety degrees instead. Stop if anything pinches at the front of the joint.
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