Scheduled for Research Consortium Poster Session: Thematic Motor Behavior and Special Populations Posters, Friday, March 16, 2007, 1:15 PM - 2:45 PM, Convention Center: Exhibit Hall Poster Area I


Static and Dynamic Posture in Sighted and Visually Impaired Adolescents

Pamela S. Haibach, Lauren Lieberman, Christopher Williams and Jennifer Ritter, SUNY Brockport, Brockport, NY

A study was conducted to provide a postural control comparison of visually impaired and sighted adolescents. The participants ranged in age from 12 to 18 years. The visually impaired adolescents were separated into 2 groups according to the classification of their visual impairment (B1's, total blindness and B3's, legal blindness). The visually impaired participants were selected from students attending a physical activity camp for children with visual impairments. Participants completed both static and dynamic postural tasks. During the static tasks the participants were asked to stand in positions of various difficulty. Postural control was reflected as the maximum displacement of the center of pressure in the medio-lateral and the antero-posterior directions. For the dynamic postural testing, the participants stood on a stabilometer in which the participants completed two tasks, maintaining equilibrium and producing maximum motion. Participants also completed a questionnaire evaluating their self-efficacy of their balance. The results of the study indicate that sighted adolescents perform with less postural motion during the static standing trials and are more confident about their balance than the visually impaired adolescents. Performance upon the stabilometer was quite variable in the visually impaired groups, however was highly correlated with the results of the self-efficacy questionnaire. In conclusion, although visual impairment was the most important indicator of performance during the postural tasks, the participant's balance self-efficacy and physical activity experiences were also strong indicators for postural control in the visually impaired adolescents.
Keyword(s): adapted physical activity, motor skills, research

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