یاسمن گودرزی گرگری

Introduction and purpose: Although archery is less dangerous compared to contact sports; Both types of acute and overuse injuries have been reported in beginner and professional archers, and most of these injuries occur in the upper limbs. Scapular dyskinesis, with the literal meaning of altered movement, indicates the inability to control the normal movements of the scapula, as well as the presence of abnormal movement patterns in the scapula, which may lead to abnormal shoulder function. The aim of the present study was to compare isometric muscle strength, proprioception and range of motion of the shoulder girdle in female archers with and without scapular dyskinesis.

Methods: In this research, ۲۴ female archers from Tehran city, who after screening for scapular dyskinesia, were equally divided into two groups with (۱۲ people) and without (۱۲ people) scapular dyskinesis, were included in the study. The isometric strength of the selected muscles of the shoulder girdle was measured using a hand-held dynamometer, and the range of motion and proprioception of the shoulder girdle was measured using the smartphone clinometer. Data analysis was done with    software version ۲۶. Independent T and Mann-Whitney U statistical tests were used to compare the desired variables at a significant level (p<۰.۰۵).

Results: The isometric strength of the lower trapezius, middle trapezius, upper trapezius, rhomboid, serratus anterior, deltoid, latissimus dorsi, pectoralis major and the isometric strength of internal and external rotation of the shoulder were significantly different between the with and without scapular dyskinesis groups (p>۰.۰۵). There was a significant difference between the two groups in the range of motion of flexion, abduction and internal rotation of the shoulder (p<۰.۰۵), unlike the range of motion of extension and external rotation of the shoulder (p?۰.۰۵). Also, there was a significant difference between the two groups in shoulder abduction, internal rotation and external rotation proprioception (p<۰.۰۵), while shoulder flexion proprioception was not significantly different between the with and without scapular dyskinesis groups (۰۵ /۰?p).
Conclusion: Isometric muscle strength, range of motion and shoulder girdle proprioception were different between archers with and without scapular dyskinesis.