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Aug 122014

Rotation

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Rotation of body parts is referred to as internal (towards the centre of the body) or external (away from the centre of the body). Pointing your feet to face each other is an example of internal rotation.

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Aug 132014

Rotator cuff

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A group of four muscles and their tendons that make a “cuff” over the head of the large arm bone (humerus). The rotator cuff helps to lift and rotate the arm and to stabilize the ball of the shoulder within the joint.

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