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Effect of Expertise in Shooting and Taekwondo on Bipedal and Unipedal Postural Control Isolated or Concurrent With a Reaction-Time Task Publisher Pubmed



Negahban H1 ; Aryan N2 ; Mazaheri M3 ; Norasteh AA2 ; Sanjari MA4
Authors
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Authors Affiliations
  1. 1. Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  2. 2. Department of Physical Education and Sport Sciences, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
  3. 3. Musculoskeletal Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Biomechanics Lab., Rehabilitation Research Center, Faculty of Rehabilitation, Department of Rehabilitation Basic Sciences, Tehran University of Medical Sciences, Tehran, Iran

Source: Gait and Posture Published:2013


Abstract

It was hypothesized that training in 'static balance' or 'dynamic balance' sports has differential effects on postural control and its attention demands during quiet standing. In order to test this hypothesis, two groups of female athletes practicing shooting, as a 'static balance' sport, and Taekwondo, as a 'dynamic balance' sport, and a control group of non-physically active females voluntarily participated in this study. Postural control was assessed during bipedal and unipedal stance with and without performing a Go/No-go reaction time task. Visual and/or support surface conditions were manipulated in bipedal and unipedal stances in order to modify postural difficulty. Mixed model analysis of variance was used to determine the effects of dual tasking on postural and cognitive performance. Similar pattern of results were found in bipedal and unipedal stances, with Taekwondo practitioners displaying larger sway, shooters displaying lower sway and non-athletes displaying sway characteristics intermediate to Taekwondo and shooting athletes. Larger effect was found in bipedal stance. Single to dual-task comparison of postural control showed no significant effect of mental task on sway velocity in shooters, indicating less cognitive effort invested in balance control during bipedal stance. We suggest that expertise in shooting has a more pronounced effect on decreased sway in static balance conditions. Furthermore, shooters invest less attention in postures that are more specific to their training, i.e. bipedal stance. © 2012 Elsevier B.V.
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