Effects of endurance training on energy metabolism of young men in resting state

Abstract

Objective To study the effect of endurance training on energy metabolism in young men in rest state. Methods Fifty males from Nanjing University of Traditional Chinese Medicine from September 2017 to December 2017 were randomly assigned to endurance training group(n=25) and sedentary group(n=25) by random number table method.Endurance training group rided power bike with intensity of 75% maximal oxygen uptake(VO2max), 50 minutes each time, once a day for 12 weeks.The sedentary group maintained the daily life of the state can be guaranteed to exercise less than 60 minutes per week for 12 weeks.The basal metabolic rate(BMR), respiration quotient(RQ), body mass index(BMI), lean body mass(LBM) and body fat percentage(BF%) were measured before and after training in both two groups. Results Before training, there was no statistically significant difference between the two groups(all P>0.05). After training, the BMR, RQ, BMI and LBM in the endurance training group were (5 720.0±711.3)kJ/d, (0.780±0.043), (23.33±3.30)kg/m2, (55.58±4.21)kg, respectively, which were significantly improved compared with before training [(4 828.0±712.6)kJ/d, (0.820±0.033), (27.69±3.28)kg/m2, (51.37±3.76)kg, t=7.434, -2.182, -2.578, 2.035, all P<0.05], BF%[(14.76±5.90)% vs. (23.60±5.37)%] decreased more significantly(t=-10.492, P<0.01). After training, the BMR[(5 720.0±711.3)kJ/d vs. (4 896.0±715.6)kJ/d] and LBM[(55.58±4.21)kg vs. (51.25±3.45)kg] of the endurance training group were significantly higher than those of the sedentary exercise group(t=6.789, 2.103, all P<0.05). RQ[(0.780±0.043) vs. (0.820±0.030)] and BMI[(23.33±3.30)kg/m2 vs. (27.73±3.58)kg/m2] of the endurance training group were significantly decreased(t=-2.179, -2.232, all P<0.05), BF%[(14.76±5.90)% vs. (23.62±5.42)%] decreased more significantly in the endurance training group (t=-10.462, P<0.01). Conclusion Endurance training can significantly improve the energy metabolism of young men and consume more fat in rest state. Key words: Resistance training; Energy metabolism; Basal metabolism; Body mass index; Rest; Male; Adolescent