일부 여대생에서 세 가지 균형조절 훈련의 효과 비교

Abstract

Many kind of training programs to improve complex function of balance have been developed and applied real clinical settings. But there were few studies compared to their effects more precisely, which has limited the appropriate and full utilization of those programs. This study was conducted to compare the effect improving balance abilities of 3 balance training programs by randomized intervention trial. Study subjects were 29 female students recruited from a university in Gwanju, who allocated randomly to 3 intervention groups, aqua group(modified Halliwick 10 point program, N=10), visual bio-feedback balance training group(N=10), and balance-pad plus trampolin group(N=9). Each group was applied 30 minutes program 3 times per week for 6 weeks, and before and 3 weeks, 6weeks after interventions, was measured the balance abilities indices such as stability score(SI, by Tetrax??), EMG balance index(BIEMG) calculated from sEMG MDF of tibialis anterior and gastrocnemius muscle(the less the value is, the higher balncing ability is). At the same time, other outcome measures, sensory ratios (somato-sensory, visual, vestibular) calculated from SI. As the results of repeated musure ANOVA, Wilcoxon signed rank test, major research findings were as follows; 1. Regarding SI or BIEMG measured at upright posture on hard platform, bio-feedback group under the condition with opening both eye and aqua group under the condition with closing both eye showed signigicant improvement in balance ability, respectively. 2. Regarding SI or BIEMG measured at upright posture on soft platform, bio-feedback group under the condition with opening both eye and aqua group under the condition with closing both eye showed signigicant improvement in balance ability, respectively. 3. Regarding all 3 sensory ratios, bio-feedback group showed significantly higher increasement in them than other 2 groups. In conclusion, the results suggested that visual bio-feedback training program improve the all 3 sensory functions required for balancing, and aqua training modified from Halliwick 10 point program contribute to improve vestibular function principally. But some limitations of this study should be considered in that the sample size was not sufficient for maintaining statistical power, and full ranges of balance indices were not measured, especially the measures for dynamic balance evaluation.

------------------------------------------------- Key words: balance training program, Aqua, visual bio-feedback, trampolin, sensory ratio