Volume 3, Issue 2 (9-2017)                   J Sport Biomech 2017, 3(2): 51-59 | Back to browse issues page


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Javdaneh N, Letafat kar A, Kamrani Faraz N, Shokri B. Investigation Stability of Upper Limb Function in Handballers with Glenohumeral Internal Rotation Deficit. J Sport Biomech. 2017; 3 (2) :51-59
URL: http://biomechanics.iauh.ac.ir/article-1-140-en.html

Department of Corrective Exercise and Sport Injury, Faculty of Physical Education, University of Kharazmi, Tehran, Iran.
Abstract:   (462 Views)
Objective: Glenohumeral Internal Rotation Deficit is one of the important risk factors in throwing athletes that can cause adverse effects on glenohumeral joint biomechanics during throwing activity and overhead activity.
Methods: In this descriptive study, 30 male student Hanballers (age=18 to 25 years) were categorized into healthy (n=15) and Glenohumeral Internal Rotation Deficit (n=15) groups. Upper quarter y balance test (YBT-UQ) was used for measuring functional instability of dominant shoulder. MANOVA test was run for comparing the performances of the two groups.
 Results: In all directions, the stability of the shoulder in Hanballer with Glenohumeral Internal Rotation Deficit was significantly lower than that in the healthy group.
Conclusion: Based on the results of this study, functional stability of the unstable shoulder of Hanballers with Glenohumeral Internal Rotation Deficit is lower than the functional stability of the healthy subjects; therefore, we suggest that the upper extremity stabilization exercises, specially the closed kinetic chain exercises be added to the shoulder rehabilitation programs.
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Type of Study: Research | Subject: Special
Received: 2017/06/14 | Accepted: 2017/10/16 | Published: 2017/10/16

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