Volume 2, Issue 1 (6-2016)                   J Sport Biomech 2016, 2(1): 57-66 | Back to browse issues page

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abdi E, Eslami M, Taghi Pou M R. Identifying the Best Indicator of Assessing the Athletes Balance in the Sudden Perturbation Test. J Sport Biomech. 2016; 2 (1) :57-66
URL: http://biomechanics.iauh.ac.ir/article-1-72-en.html
1- Department of Sport Biomechanics, Faculty of Physical Education and Sport Sciences, Mazandaran University, Sari, Iran.
Abstract:   (6237 Views)

Objective: The aims of this study were to identify the most appropriate indicator to assess the balance in the sudden perturbation test conditions.

Methods: In this study, 13 freestyle national wrestlers at the age of 20.5±2.4 and 13 normal subjects with average age of 23.5±1.4 were used recruited. Balancing test was carried out under two conditions: standing with the guard (guard) and stand feet shoulder width apart (standing). To measure the balance parameters, the RS-scan system was used, and for external perturbation movable plant with weights equal to 12% of the mass was used. The independent t-test for statistical analysis in each direction between the two groups was used.

Results: Center of pressure (CoP) travel distance in the anterior, posterior and external directions, wrestlers were more than those in normal individuals in both positions; for guard position (p = 0.01, p = 0.01, p = 0.5) and (p = 0.2, p = 0.5, p = 0.01) in stand position. The COP average speeds in the anterior, posterior and external directions in both conditions were more in wrestlers than that normal group, (p = 0.01, p = 0.08, p = 0.01) in the guard position and (p = 0.27, p = 0.1, p = 0.01) in the stand position. The wrestlers were able to get stable as soon as possible in both positions and in four direction (p=0.001).

Conclusion: Athletes in sudden perturbation want to reach equilibrium and stability in shorter time by increasing speed CoP. Thus it seems, time to stability can be a good indicator for balance evaluating.

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Type of Study: Research | Subject: Special
Received: 2015/11/29 | Accepted: 2016/07/16 | Published: 2016/09/11

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