Benefits of different intensity of aerobic exercise in modulating body composition among obese young adults: a pilot randomized controlled trial.

Research paper by Chih-Hui CH Chiu, Ming-Chen MC Ko, Long-Shan LS Wu, Ding-Peng DP Yeh, Nai-Wen NW Kan, Po-Fu PF Lee, Jenn-Woei JW Hsieh, Ching-Yu CY Tseng, Chien-Chang CC Ho

Indexed on: 25 Aug '17Published on: 25 Aug '17Published in: Health and Quality of Life Outcomes


The aim of present study was to compare the effects of different aerobic exercise intensities and energy expenditures on the body composition of sedentary obese college students in Taiwan.Forty-eight obese participants [body mass index (BMI) ≥ 27 kg/m(2), age 18-26 years] were randomized into four equal groups (n = 12): light-intensity training group (LITG), 40%-50% heart rate reserve (HRR); middle-intensity training group (MITG), 50%-70% HRR; high-intensity training group (HITG), 70%-80% HRR; and control group (CG). The aerobic exercise training program was conducted for 60 min per day on a treadmill 3 days per week for 12 weeks. All participant anthropometric data, blood biochemical parameters, and health-related physical fitness components were measured at baseline and after 12 weeks.At baseline, the anthropometric indices did not differ significantly among the four groups (p > 0.05). After 12-week exercise intervention, the HITG and MITG had significantly more changes in body weight, waist circumference (WC), waist-to-hip ratio (WHR), and waist-to-height ratio (WHtR) than the LITG. The changes in BMI and body fat percentage differed among all four groups (p < 0.05).A 12-week high-intensity exercise intervention with high energy expenditure can considerably reduce body weight, body fat, WC, WHR, and WHtR, whereas a light-intensity exercise intervention can significantly reduce body weight and body fat.Current Controlled Trials TPECTR09831410900 , registered on 24(th) Dec 2009.

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