健走運動對改善體重過重大學生健康體適能之研究

Purpose: This study was aimed to evaluate the effects of the walks exercise program on body mass index (BMI) and health related fitness. Methods: Fifty male college students with BMI greater than 26 were randomly assigned to three groups, subjects were assigned to one of three, eight-weeks exercise programs: 1) High Volume/ Low Intensity group (H/L) [equivalent 50-70% HRR, 200 min exercises/wk]; 2) Low Volume/ High Intensity group (L/H) [equivalent 75-90% HRR, 120 min exercises/wk]; and 3) High Volume/ High Intensity group (H/H) [equivalent 75-90% HRR, 200 min exercises/wk]. Subject's BMI and health fitness condition were recorded right before (A1), 4 weeks (A2) and 8 weeks (A3) after the beginning of walking exercise program. Collected data were analyzed by one way analysis of variance (ANOVA) to detect overall differences. Whenever ANOVA was significant, Turkey post hoc test was employed to determine specific differences between groups. The criterion for significance for all comparisons was p＜.05. Results: 1. After of walks exercise BMI, showed significant improvement of H/L group and H/H group (p＜.05, A1＞A3). Between the intervention groups after 8 weeks H/H was significantly lower than L/H (F=3.53, p＜.05). 2. After of walks exercise cardiovascular, showed significant improvement of H/L group and H/H group (p＜.05, A3＞A1). Between the intervention groups after 8 weeks H/H and H/L was significantly lower than L/H (F=3.68, p＜.05). After of walks exercise flexibility, endurance, showed significant improvement of (p＜.05, A3＞A1). Conclusion: The applied walks exercise program reduced BMI and promoted the cardiovascular significantly, Between the intervention exercise volume (200 min/wk) was significantly Effectiveness than exercise Intensity (75~90% HRR). Appropriate of exercise volume (120~200 min/wk) or exercise intensity (50~90% HRR) of aerobic exercise, flexibility and endurance significantly.