The goal of this study was to examine associations between measures of postural sway, and functional performance and self-efficiacy in 10 healthy young adults (Y, 24.6±0.73 yrs), 10 healthy older adults (H, 72.6±1.06), and 11 older adults (V, 69.1±2.22) with a vestibular disorder (perilymph fistula). Center of pressure (COP) data were collected using a force platform over 10, 30 s trials. Data on preferred walking speed (Pwalk, m/s), one leg balance time (1 Leg, s), timed get-up-and-go (Get Up, s), Berg balance test (Berg), isometric knee extensor strength and knee extensor muscle power (ExtP) and gait (GES) and falls efficacy were also recorded. MANOVA analysis revealed that there were no differences between Y and H on the 6 COP measures. Significant differences were observed between H and V on 3 of the 6 COP measures. There was little difference between the Y and H on any of the functional measures or the self-efficacy scales although H did exhibit reduced muscle power. Y performed markedly better than V on all the functional performance measures, gait efficacy scale, and muscle strength and power. COP measures (in particular medio-lateral range and variability, and average velocity) were correlated with the performance and efficiacy measures. Falls were assessed retrospectively. No subject in this study reported a fall within the previous 2 years. Despite marked increases in postural sway, functional decline, and lower self efficacy, older adults with a vestibular disorder had adapted their behavior to cope with a disorder that resulted in severely disturbed balance and vertigo. (Table)
American College of Sports Medicine; 46th Annual Meeting; Washington State; Convention & Trade Center; June 2-5, 1999
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G-39 POSTER OLDER ADULT TRAIN PROG