Author and graduation date: Kirsten C. CUMMINGS, August, 2002

Committee members: James A Yaggie (Chair), Roger Simmons, Robert Pozos

Thesis title: Effects of BOSU Training on Balance and Functional Ability

Exercises to improve joint proprioception and coordination of the injured and elderly populations are advocated throughout literature. Yet, there is little evidence that there is an effect on functional task and balance for the healthy and recreationally active population. The purpose of this study was to determine the effect of a 4-week balance training program on functional ability of subjects who are recreationally active. Thirty-six subjects (age = 22.7 + 2.10 years- height = 67.32 + 3.82 in., weight = 156.53 + 36.08 lbs) were randomly placed into a control (n = 19) and experimental group (n = 17). The experimental group trained three days per week, 10-20 minutes each day, performing various balance exercises on the Both Sides Up balance trainer (BOSU). Postural limits and functional task (time on ball, shuttle run and vertical jump) were assessed during a pre-test (T1). a posttest (T2), and 2 weeks post training (T3). Repeated measures analysis revealed significant differences in time on ball (F2 = 30.6; p = .001) and shuttle run (F2 = 3.74, p =.037) after the exercise intervention (T2). Retention test scores revealed no significant differences in either the time on ball (F2 = 30.6; p = 1.000) or shuttle run (F2 = 3.74; p = .374. No significant differences were found in vertical jump (F2 = .966; p = .629) Differences in postural sway and limits were not observed. The results indicated that BOSU balance training improved performance of selected sport related activities. Specific balance skill and agility were shown to improve post-training, however it is unclear if these differences were an effect of training or task specificity, and if they are transferable to the performance or recreational or competitive sport and activity.

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