| Summary: | 碩士 === 聖約翰科技大學 === 工業工程與管理系碩士在職專班 === 101 === Purpose: The purpose of this study was to examine the effects of 8-week continuous and discontinuous of 50-69% HRmax stepping exercise on metabolic syndrome and self-efficacy of obese boys in elementary school.
Method: The subjects of 36 obese boys from the fifth to sixth grades of Sanjhih Elementary School in New Taipei City, were 10.5 ±0.5 years old, and selected via the body mass index (BMI) more than or equal to 22.9kg/m2. All subjects were examined by BMI, percentage index of body fat, metabolic syndrome (waistline & blood pressure) and self-efficacy questionnaire before and after training. All subjects were divided randomly into three different groups: continuous exercise group (CEG), discontinuous exercise group (DEG) and control group (CG). The CEG did single bout of 50-69% HRmax stepping exercise a day lasting for 30 minutes, one minute to 90 beats, three times a week for eight weeks. The DEG did two bouts of 15-min 50-69% HRmax stepping exercise a day each, one minute to 90 beats, three times a week for eight weeks. The CG didn’t exercise. The data of BMI, percentage index of body fat, metabolic syndrome (waistline & blood pressure) and self-efficacy questionnaire were analyzed after 8 weeks by using Paired sample t-test and one-way ANCOVA. The significant level was set α < .05.
Result: After the 8-week stepping exercise intervention, the results indicate: 1. The BMI of CEG and DEG reach the significance (p<.05), but the BMI between CEG and DEG were not significant. 2. The body fat mass of CEG reach the significance (p<.05), but the body fat mass between CEG and DEG were not significant. 3. The waistline of CEG and DEG reach the significance (p<.05), but the waistline between CEG and DEG were not significant. 4. The blood pressure of the three groups didn’t reach the significance (p>.05). 5. The sport activity self-efficacy of the three groups didn’t reach the significance (p>.05). 6. The weight control self-efficacy of CEG reach the significance (p<.05), but the weight control self-efficacy between CEG and DEG were not significant.
Conclusions: The conclusion is that no matter what obese boys take continuous or discontinuous of 50-69% HRmax stepping exercise, they can improve BMI and waistline; however, continuous of 50-69% HRmax stepping exercise is relatively effective to improve percentage index of body fat and the weight control self-efficacy. Since continuous and discontinuous of 50-69% HRmax stepping exercise can’t improve blood pressure and the sport activity self-efficacy, it may need more studies. To sum up, the continuous or discontinuous of 50-69% HRmax stepping exercise is an effective approach to improve metabolic syndrome and self-efficacy of obese boys in elementary school.
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