Seated External Rotation on a Chair

Description

How to Do Seated External Rotation on a Chair

1. 1
   Setup

   Sit tall on a chair with your feet flat on the floor, hip-width apart. Position your right upper arm against your torso with your elbow bent at a 90-degree angle, forearm pointing forward.

2. 2
   Setup

   Ensure your shoulder is relaxed and down, not shrugging towards your ear. Your palm should be facing your body or in a neutral position.

3. 3

   Exhale as you slowly rotate your forearm outwards, keeping your elbow pinned tightly to your side throughout the movement. Your hand will move away from your body.

4. 4

   Continue the rotation until your forearm is parallel to your body or you reach the end of your comfortable range of motion, without allowing your elbow to lift away from your torso.

5. 5

   Inhale as you slowly and with control return your forearm to the starting position. Avoid letting your arm swing back quickly.

Tips

• Maintain a strict 90-degree bend in your elbow and keep your upper arm glued to your side to properly isolate the external rotators.
• Perform the movement slowly and deliberately, focusing on the muscle contraction rather than using momentum to move your arm.
• Keep your core engaged and maintain an upright posture throughout the exercise to prevent compensatory movements from your back or shoulders.
• Control both the concentric (outward rotation) and eccentric (return) phases of the movement to maximize muscle engagement and strengthen the rotator cuff effectively.

Common Mistakes

• ×Allowing the elbow to flare away from the torso reduces isolation of the rotator cuff; actively press your upper arm into your side to keep it stable.
• ×Rushing the movement compromises muscle activation and control; instead, use a slow, controlled tempo for both the outward and inward phases.
• ×Shrugging the shoulder or leaning back to generate momentum takes tension away from the target muscles; maintain a stable, upright posture with relaxed shoulders.