Lying Rotator Cuff Exercise

An intermediate isolation exercise for rotator cuff strengthening performed lying on your side, targeting the infraspinatus and teres minor muscles.

Instructions

1. Lie on your side on a mat or bench with your knees slightly bent for stability.
2. Keep your lower arm underneath you for support, or rest it on the mat in front of your torso.
3. Bend your upper arm elbow to 90 degrees, keeping your elbow against your waist and ribcage throughout the movement.
4. Hold a light dumbbell in your upper hand with your forearm pointing toward the floor; this is your starting position.
5. Slowly rotate your forearm upward toward your stomach, rotating at the shoulder joint (external rotation).
6. Continue the rotation until your forearm reaches approximately a 45-90 degree angle from your starting position.
7. Squeeze your rotator cuff muscles at the top of the movement for a second.
8. Slowly lower the dumbbell back down to the starting position in a controlled manner.
9. Complete all repetitions on one side before switching to the opposite side.
10. Progress slowly; add weight only when you can perform all reps with perfect control.

Tips

• Start with very light weight; the rotator cuff muscles are small and vulnerable to injury from excessive loading.
• Keep your elbow firmly against your waist; do not allow it to move away from your body during the movement.
• Move slowly and deliberately; smooth, controlled motions are essential for rotator cuff health and development.
• This exercise is therapeutic for shoulder health and helps prevent injuries in the rotator cuff.
• Perform this exercise 2-3 times per week as part of a comprehensive shoulder training program.
• If you experience pain (not just muscle fatigue), stop immediately and consult a healthcare professional.