Scheduled for Research Consortium Health and Special Populations Poster Session, Friday, April 15, 2005, 1:15 PM - 2:45 PM, Convention Center: Exhibit Hall Poster Area I


Sit-to-Stand and Modified Timed-Up-and-Go Assessment in Individuals With a Visual Impairment and Sighted Matches (Special Populations)

Michael Horvat, University of Georgia, Athens, GA and Christopher T. Ray, Vamc Rehab R&D Center, Decatur, GA

The purpose of this investigation was to use the 30-sec. Sit-To-Stand (STS) and a modified Timed-Up-and-Go (TUG) to assess movement in adults with visual impairments compared to an age and sex matched control group. Fifteen individuals matched by sex, age, and height with a visual impairment and fifteen individuals without a visual impairment was tested. Univariate ANOVAS were used to analyze between group differences. The STS procedure consisted of one trial where each participant was instructed to stand from the seated position and return to the seated position as many times as possible in thirty seconds with the total number of repititions used for analysis. Based on the ANOVA significant differences were apparent between groups on the 30-second STS (F(1, 28) = 5.49, p = .026) indicating a greater level of performance for the sighted group. The mean repititions for the group with visually impairment was 16.87 +/- 5.94 repititions, as opposed to 23.00 +/- 8.22 for the matches in the sighted group. The Timed Up and Go consisted of each participant standing up from the seated position walking 2 meters and then returning to the seated position. Three trials were performed by each participant and the mean time (sec.) was analyzed. Significant differences were evident (F(1, 28) = 9.409, p = .005) between the visually impaired and their sighted peers on the Timed Up and Go performance indicating that the visually impaired group needed more time to complete the task of standing up, walking three meters, turning around, and return to the seated position. The mean Timed Up and Go (sec.) for the individuals with visual impairment group (7.99 ± 3.86) compared to an average time of 4.86 ± .84 for the sighted group. The results from the STS and TUG indicate that performance suffers as the components of speed and muscular endurance are included in these mobility assessments and suggests a need for further study into performance adaptation and deficiencies for use in orientation and mobility programs.
Keyword(s): adapted physical activity

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