Effects of Calorie Restriction with Exercise Intervention on Weight Control and Self-Efficacy in Obese Middle-aged Adults
| Autor: | WANG, YING-FANG, 王櫻芳 |
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| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 OBJECTIVE: Exercise and calorie restriction are the first choices for the intervention of obesity. Self-efficacy is related to behavioral changes and is an important indicator of success in obesity treatment. The purpose of this study was to investigate the effect of single behavior change with exercise and dual behavioral changes with exercise and diet on weight control and self-efficacy in obese middle-aged adults. METHODS: A total of 38 subjects (60.1±2.98 years of age) were enrolled in the study. Subjects were divided into the combined diet and exercise group (n=14), exercise group (n=10), or control group (n=14). Subjects in the combined diet and exercise group and exercise group received high-intensity intermittent exercise training three times a week, 50 minutes each time for 12 weeks. Subjects in the combined diet and exercise group also received calorie control, nutrition education and counseling. The goal of calorie control was 1200-1500 calories per day for women and 1500-1800 calories per day for men. Subjects in the combined diet and exercise group were asked to record daily dietary intake for at least three days (including one holiday) per week. Subjects photographed their daily dietary intake and uploaded it to an instant message software. A dietitian analyzed their daily intake of calories and macronutrients and then gave feedback about dietary modifications. The control group did not receive any intervention. All subjects were evaluated before the intervention, during the intervention (6 weeks), and after the intervention. Paired t-test was used to examine changes in body composition, dietary intake, and diet and exercise self-efficacy of subjects. One-way ANOVA was used to compare changes in parameters among groups. Correlations between variables were examined by Pearson correlation coefficient. The significant level was set at α = .05. RESULTS: At the sixth weeks of intervention, the combined diet and exercise group had significant decreases of body weight, body mass index (BMI), waist circumference, and body fat percentages of whole body, trunk, and lower extremities, while the skeletal muscle percentages of upper extremities and trunk showed significant increases. At the sixth weeks of intervention, the control group had significant decreases of body fat percentages of whole body, upper extremities and lower extremities, while the skeletal muscle percentages of whole body, trunk and lower extremities showed significant increases. There were no significant changes in the body composition of the exercise group at the sixth weeks of intervention. After 12 weeks of intervention, the body weight of the combined diet and exercise group decreased 2.4±1.78%, and the BMI decreased 2.4±1.78%. Body weight of the control group decreased 1.2 ± 1.75%, BMI decreased 1.3 ± 1.62%, and the skeletal muscle percentages of whole body and trunk increased 2.9 ± 4.46% and 3.8 ± 6.05%, respectively. There were no significant changes in the body composition of the exercise group after 12 weeks of intervention. Regarding self-efficacy, "adherence to exercise habits" increased 23.9 ± 39.42% from the pretest in the control group. CONCLUSION: Dual behavioral changes with exercise and calorie control can reduce body weight and BMI in obese middle-aged adults. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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