Estudo Electromiográfico do Conflito Sub-Acromial

Objective: analyze the muscle activity of the shoulder complex during the volleyball serve and the possible correlation with the mechanism of injure of impingement syndrome. Methods: observational, analytic, transversal study. 15 athletes were divided in three groups and evaluated with surface electromyography. It was study the mean of muscle activation during the different fases of the serve. Results: increased activity in Upper Trapezius and Infraspinatus and a decreased activity in Rectus Abdominis and Obliquus Externus in athletes with impingement syndrome. Conclusion: athletes with and without impingement syndrome have significant different muscular activity levels in stabilizers.