Article

A disturbance in scapulohumeral rhythm may cause negative biomechanic effects on
rotator cuff (RC). Alteration in scapular motion and shoulder pain can influence
RC strength. Purpose of this study was to assess supraspinatus and infraspinatus
strength in 29 overhead athletes with scapular dyskinesis, before and after 3 and
6 months of rehabilitation aimed to restore scapular musculature balance. A passive posterior soft tissues stretching was prescribed to balance shoulder
mobility. Scapular dyskinesis patterns were evaluated according to Kibler et al.
Clinical assessment was performed with the empty can (EC) test and infraspinatus
strength test (IST). Strength values were recorded by a dynamometer; scores for
pain were assessed with VAS scale. Changes of shoulder IR were measured. The
force values increased at 3 months (P < 0.01) and at 6 months (P < 0.01). Changes
of glenohumeral IR and decrease in pain scores were found at both follow-up.
Outcomes registered on pain and strength confirm the role of a proper scapular
position for an optimal length-tension relationship of the RC muscles. These data
should encourage those caring for athletes to consider restoring of scapular
musculature balance as essential part of the athletic training.

Langue : ANGLAIS