sina.tums.ac.ir Background Lateral scapular slide test (LSST ... Results 27 people with and 30 people without shoulder pain participated. The mean age (SD) for the participant was 47.7 (11.6) years ...
Anterior or front deltoid — responsible for shoulder flexion. Lateral, medial, or side deltoid — responsible for abduction (lifting your arm laterally away from your body). Posterior or rear ...