Comparing the effect of endurance and resistance training on resting metabolic rate in a group of men with a sedentary lifestyle
Keywords:resting metabolic rate, body composition, endurance training, resistance training, sedentary lifestyle
Study examined the effects of aerobic and anaerobic exercise on resting metabolic rate (RMR) and body composition and compared changes in these parameters in group of men (n = 17), aged 17-36, with sedentary lifestyle. During the initial measurements, the values of RMR, body composition and exercise test were obtained. In addition, five-day nutritional intake and record of physical activity were completed. After the initial measurements, subjects were randomly assigned in two training groups. Subjects in group EX1 ( n=9) performed aerobic physical activity – endurance training (jogging and/or running), whereas subjects in group EX2 ( n=8) performed anaerobic physical activity – resistance training. Physical activity was performed for 12 weeks, 3 times a week. The output measurements were obtained after 12 weeks of regular physical activity. Data of RMR were collected using the air analyzer Metalyzer Cortex 3B in the Laboratory of Sports Medicine, Faculty of Sports Studies in Brno. For body composition, method of bioelectrical impedance analysis has been used. RMR increased significantly from pre- to postraining for EX1 ( 2045,8 ± 207,5 to 2168,8 ± 217,7 kcal.d-1) as well as for EX2 (1992 ± 164,4 to 2340 ± 321,3 kcal.d-1). Body fat for EX1 was significantly reduced (21,2 ± 6,4 to 18,7 ± 6,8 %) compared with EX2 (22,4 ± 6,2 to 20,6 ± 7,6 %). Measured data indicate more significant changes by subjects from EX1 group (endurance training).
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