Shoulder and sometimes elbow/neck chains share the job — check the shoulder topic first.
Seek urgent care for chest pain, sudden severe headache, new weakness, bowel/bladder changes after back pain, or rapidly worsening neurological signs.
Suggested topics
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1
Shoulder Arms & shoulders
Shoulder rehab basics: widest ROM joint — rotator cuff, scapular rhythm and load over a pain score. Educational — no diagnosis or dosing.
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2
Elbow Arms & shoulders
The elbow's hinge-and-rotation design lets the forearm bend and turn simultaneously, but this dual role concentrates repetitive stress on a small set of tendons.