Comparison of postural control prevailing strategies in elite hearing and deaf Iranian wrestlers
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Authors
1ارائه دهنده مقاله
2Assistant Professor, Health & Sport Rehabilitation Department, Faculty of Physical Education & Sport Science, Shahid Beheshti University, Tehran, Iran.
Abstract
Introduction: Postural control strategies are taken with respect to the sensory inputs of visual, vestibular and proprioception and processing in the central nervous system to create and maintain balance. The purpose of this study was to compare the dominant postural control strategies in hearing and deaf elite wrestlers.
Methodology: The present study was semi- experimental and the subjects of the study were Iranian hearing and deaf wrestlers. To evaluate postural control, a dynamic computerized posturography system and sensory organization test were used in six different situations, along with manipulation sensory afferent. The posturography system evaluates the prevailing strategies of maintaining balance in terms of manipulation sensory afferent by measuring kinetic variables of postural control.
Results: The results showed that there is no significant difference in the kinetic postural control variables in six different positions of manipulation sensory afferent (the presence of all three senses, the vision loss, auditory manipulation, proprioception manipulation, the vision loss -proprioception manipulation, auditory manipulation- proprioception manipulation) among the different research groups (p>0.05). However, the results of postural control comparisons showed no significant difference in body oscillation in the X axis (p<0.05).
Discussion: Based on the results of the present study, there was no significant difference in the postural control variable between the elite hearing and deaf wrestlers. This fact can show the lack of hearing impairment effect in postural disorder and balance maintenance among the deaf wrestlers compared to deaf counterparts. Although the oscillation rate of the deaf wrestlers in the horizontal axis was higher than that of the hearing wrestlers, this may be due to a lack of auditory sense in this group, or it can be said that they have impairment in the lower body and used the thigh strategy in the lateral tilt. Deaf wrestlers can have training programs similar to the hearing wrestlers in their training and exercises programs to increase the balance and postural control.
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