shoulder impingement
Is
caused by a mechanical dysfunction such as bursa, AC joint, acromion, humerus
or rotator cuff/supraspinatus tendon beneath the coracromial arch. Clinically,
the pectorals, posterior capsule and upper trapezius muscles are tight. Focus
on training clients with SI, performing posterior capsule stretch, scapular
retraction(mid row exercise) and external rotation strengthening to name a few.
The
rotator cuff is part of the shoulder comprised of four dynamic muscles. These
include the supraspinatus, infraspinatus, teres minor and subscapular is
muscles. Research shows that the supraspinatus is biomechanically weaker and
has less blood supply as compared to the other muscles of the rotator cuff.
Making it susceptible to injury.