Therapeutic Approaches for Subjects With Scapula Dyskinesis

Therapeutic Approaches for Subjects With Scapula Dyskinesis: Conscious Control, EMG Biofeedback Training, and Intensive Scapula-focused Intervention

The investigators will test whether conscious control with manual guides and video or EMG biofeedback will enhance 3-D kinematics of scapula in shoulder dysfunction subjects with different type of scapula dyskinesis. The investigators will also examine how correction of scapular orientation may affect the activation of associated muscles during various dynamic movements in these subjects.

Inclusion criteria:

• At least three positive of five tests, including Neer's test, Hawkin's test, Empty can test, tenderness in tendon of rotator cuff and resisted external test.
• Each patient will need a prescription of the physician or orthopedic surgeon for diagnosing impingement symptoms

Exclusion criteria:

- Shoulder pain onset due to trauma, a history of shoulder fractures or dislocation, cervical radiculopathy, degenerative joint disease of the shoulder, surgical interventions on the shoulder, or inflammatory arthropathy