Volume 1, Issue 3 (11-2019)                   Tabari Biomed Stu Res J 2019, 1(3): 1-8 | Back to browse issues page

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Ghanbari L, Alizadeh M H, Minoonejad H, Hoseini H. Prediction of scapular dyskinesis through electromyographic index of scapulothoracic muscles and glenohumeral internal rotation range of motion in female overhead athletes. Tabari Biomed Stu Res J. 2019; 1 (3) :1-8
URL: http://tbsrj.mazums.ac.ir/article-1-3650-en.html
1- Assistant Professor, Department of Sport Injuries and Corrective Exercises, Islamic Azad University Astara Branch, Astara, Iran.
2- Professor, Department of Sport Injuries and Corrective Exercises, Faculty of Physical Education and Sport Medicines, University of Tehran, Tehran, Iran.
3- Assistant Professor, Department of Sport Injuries and Corrective Exercises, Faculty of Physical Education and Sport Medicines, University of Tehran, Tehran, Iran.
4- Assistant Professor, Department of Sport Biomechanics, Faculty of Physical Education And Sport Medicines, University of Guilan, Rasht, Iran.
Abstract:  
Scapular dyskinesis (SD), due to the high prevalence in overhead athletes and the motor interaction between the scapula and the humerus, will affect the glenohumeral joint function and subsequently the athletic performance of these athletes. Therefore, the purpose of the study was to predict SD through electromyographic index of scapulothoracic muscles and glenohumeral internal rotation range of motion (ROM) in female overhead athletes. The present study was descriptive-correlational research on 60 athletic females in volleyball, handball, basketball, and badminton. The Lateral scapular slide test was used to examine the SD. the electromyography and goniometer were used to measure the activity of scapulothoracic muscles, including upper trapezius (UT), lower trapezius (LT) and serratus anterior (SA) and glenohumeral rotation ROM respectively. Data were analyzed by Spearman correlation and multiple regression tests. There were significant correlations between all the electromyographic variables with SD (p <0.01). The regression effects of all predictive variables on SD were significant (p= 0.000). In terms of predictive power, the UT-LT co-contraction (β= 0.45), UT-SA co-contraction (β= 0.37), UT activity (β= 0.34), glenohumeral internal rotation (ROM) (β= 0.30), LT activity (β= 0.16), SA activity (β= 0.12) have the highest regression effects on the SD, respectively. the independent variables set predict 78% of the variance of the criterion variable. screening and evaluation of overhead athletes for the reorganization of SD, and then participate in the corrective exercises for adjustment and treatment, must be taken into consideration.
Type of Study: Research(Original) |

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