Carrying the weight of the world on your shoulders? There are at least 14 muscles responsible for movement in your shoulders and shoulder blades. Each of these muscles work together to create stability and produce efficient movements. However, injury or overuse of the shoulder joint can cause these muscles to work against each other producing pain. Assessment of your shoulder pain involves examining your range of motion, health of your joints, muscle strength, and balance. Treatment is multifaceted and can include soft tissue releases, stretches, strengthening exercises, ergonomic changes, alignment and posture corrections. Motor control (or the timing/pattern of your movement) is examined and treated for optimal functioning and performance.