Effects of High-Intensity Interval Training (HIIT) and Protein Intervention in Body Composition of Female College Students

• Main Authors: WANG,I-JING, 王翊靜
• Other Authors: KUO,SHIH-HSIEN
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/39kje9

碩士 === 輔英科技大學 === 保健營養系碩士班 === 107 === Introduction: The prevalence of overweight and obese people in the world is growing at any age. Studies have shown that obesity rates in countries around the world will multiply every five to ten years and will be an addi-tional burden on the country's health care system.Low physical activity and inadequate dietary intake are the most important related behaviors affect-ing health. Studies have shown that low physical activity and improper diet may cause overweight and may lead to obesity. Nutrition is the most im-portant basis for health, so getting enough nutrients, a balanced diet and ample activity is the foundation of health. Therefore, maintaining proper body fat percentage and muscle mass is the physiological state of main-taining balance and healthy body is the basis of health. Methods: This study used a two-group pretest-posttest design, with High-intensity interval training (HIIT) exercise mode, and measurements of physical fitness and body composition, as well as Food frequency ques-tionnaires (FFQs), International Physical Activity Questionnaire (IPAQ-L) and the Contour Drawing Rating Scale were used to investigate the dietary habits of the subjects, the amount of activity per week, and the body image. Water and protein were added within half an hour after exercise, and the body composition such as body fat percentage and muscle mass were measured after 4 weeks to observe changes in the body composition of the subject. Therefore, the purpose of this study was to investigate the use of High-intensity interval training with protein supplementation to reduce college female body fat and increase muscle mass, as well as to understand the correlation between eating habits and body composition. Results: According to the high-intensity interval training intervention for the body composition, the shoulder width (P < 0.000), chest circumference (P = 0.002), and hip circumference (P = 0.031) were significantly decreased. Protein weight (P = 0.038), skeletal muscle weight (P = 0.022), right leg muscle analysis (P < 0.000), left leg muscle analysis (P = 0.006) showed significant elevation, body fat weight (P = 0.001), and Body fat percentage (P = 0.001) and visceral fat area (P < 0.000) were significantly reduced. The physical fitness, for the cardiorespiratory endurance index (P = 0.039), sit-ups (P = 0.004), and push-ups (P < 0.000) showed a significant im-provement. A combination of protein supplementation showed a signifi-cant decrease in body weight (P = 0.022), body mass index (BMI) (P = 0.019) and obesity percentage (P = 0.031). Conclusion: High-Intensity Interval training with protein supplementation is not obvious for muscle mass increase, but it significantly reduces body weight, body mass index (BMI) and obesity percentage. High-Intensity Interval training has significant improvement in shoulder width, chest circumference, hip circumference, body fat weight, skeletal muscle weight, body fat percentage, visceral fat area, and muscle mass in both legs. Gender is one of the reasons that affect muscle mass and lean body mass. Hormon may cause slow or not easy muscle synthesis in women, which may result in no effect of protein supplementation on muscle mass. This study sug-gests that the campus environment can use this course to educate female college students, use this exercise to do classroom education, to establish the correct body image of female college students, and to enhance self-confidence. Keywords: Interval training, Body composition, Female students