Muscle Imbalance in the Shoulder

Overview

Some of the muscles in your shoulder have opposing roles. When you move your arm, certain muscles contract while their opposing muscles relax. But when a muscle becomes much stronger than its opposing muscle, your shoulder can become unstable. You may have trouble moving it normally. We call this a "muscle imbalance."

Causes

This can happen if you have a strength training routine that doesn't work your muscles evenly. It can happen if you perform repetitive motions at your job. You can develop a muscle imbalance if you play a sport that builds some muscles but not others. And, it can happen as a result of a shoulder injury.

Symptoms

A muscle imbalance can limit your arm's range of motion. You may feel pain, stiffness, weakness or numbness. Your shoulder may swell. And, you may have muscle spasms.

Treatment

A muscle imbalance can be treated with physical therapy. Your healthcare provider can create a plan that's right for you.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.