title: Positive effect of exercise training at maximal fat oxidation intensity on body composition and lipid metabolism in overweight middle-aged women.
abstract: The purpose of this study was to test the hypothesis that 10 weeks of supervised exercise training at the maximal fat oxidation (FATmax) intensity would improve important variables of body composition and lipid metabolism in overweight middle-aged women. A longitudinal study design was employed to evaluate the effects of FATmax exercise training. Thirty women (45-59 years old; BMI 28·2 ± 1·8 kg m(-2) ; body fat 38·9 ± 4·1%) were randomly allocated into the Exercise and Control groups, n = 15 in each group. Body composition, FATmax, predicted VO2 max, lipid profile, plasma lipoprotein lipase activity and serum leptin concentration were measured before and after the experimental period. The Exercise group was trained at the individualized FATmax intensity, 5 days per week and 1 h per day for 10 weeks. No diet control was introduced during the experimental period for all participants. Exercise group obtained significant decreases in body mass, BMI, body fat % and abdominal fat mass, as well as the concentrations of triglycerides, serum leptin and blood glucose. The activity of lipoprotein lipase was increased in trained participants. There were no changes in these variables in the Control group. In addition, there was no significant change in daily energy intake for all participants before and after the experimental period. In conclusion, the 10-week FATmax exercise training achieved improvements in body composition and lipid metabolism in overweight middle-aged women. This result suggests FATmax is an effective exercise training intensity for obesity treatment.
authors.affiliation: Department of Health and Exercise Science, Tianjin Physical Fitness Research Center, Tianjin University of Sport, Tianjin, China.
authors.forename: Sijie
authors.initials: S
authors.lastname: Tan
authors.affiliation: Faculty of Health, Engineering, and Sciences, University of Southern Queensland, Toowoomba, Qld, Australia.
authors.forename: Jianxiong
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Health and Exercise Science, Tianjin Physical Fitness Research Center, Tianjin University of Sport, Tianjin, China.
authors.forename: Liquan
authors.initials: L
authors.lastname: Cao
authors.affiliation: Department of Health and Exercise Science, Tianjin Physical Fitness Research Center, Tianjin University of Sport, Tianjin, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Guo
authors.affiliation: Department of Health and Exercise Science, Tianjin Physical Fitness Research Center, Tianjin University of Sport, Tianjin, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Wang
mesh_terms: D001823:Body Composition; D015444:Exercise; D005081:Exercise Therapy / Q000379:methods*; D005223:Fats / Q000378:metabolism; D005260:Female; D006801:Humans; D050356:Lipid Metabolism; D008875:Middle Aged; D050177:Overweight / Q000503:physiopathology* / Q000517:prevention & control*; D010084:Oxidation-Reduction; D010101:Oxygen Consumption; D064797:Physical Conditioning, Human / Q000379:methods; D010807:Physical Endurance; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D016896:Treatment Outcome
chemical_list: D005223:Fats
keywords: exercise training; lipid metabolism; maximal fat oxidation rate; obesity; women