Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Nutrients. 2022 Feb 15;14(4):816. doi: 10.3390/nu14040816.
The purpose of this study was to evaluate the feasibility and acceptability of randomizing adults with overweight and obesity (BMI 25-40 kg/m) to morning (06:00-10:00) or evening (15:00-19:00) aerobic exercise. Participants completed four exercise sessions per week in the morning (AM, = 18) or evening (PM, = 15). The exercise program was 15 weeks and progressed from 70 to 80% heart rate maximum and 750-2000 kcal/week. Bodyweight, body composition, total daily energy expenditure (TDEE), energy intake (EI), sleep, sedentary behavior (SB), non-exercise physical activity (NEPA), and maximal aerobic capacity were assessed at baseline and week 15. Study retention was 94% and adherence to the supervised exercise program was ≥90% in both groups. Weight change was -0.9 ± 2.8 kg and -1.4 ± 2.3 kg in AM and PM, respectively. AM and PM increased TDEE (AM: 222 ± 399 kcal/day, PM: 90 ± 150 kcal/day). EI increased in AM (99 ± 198 kcal/day) and decreased in PM (-21 ± 156 kcal/day) across the intervention. It is feasible to randomize adults with overweight and obesity to morning or evening aerobic exercise with high levels of adherence. Future trials are needed to understand how the timing of exercise affects energy balance and body weight regulation.
这项研究的目的是评估将超重和肥胖成年人（BMI 25-40 kg/m）随机分配到早上（06:00-10:00）或晚上（15:00-19:00）进行有氧运动的可行性和可接受性。参与者每周在早上（AM，n = 18）或晚上（PM，n = 15）进行四次运动。运动计划持续 15 周，从 70%到 80%的最大心率和 750-2000 千卡/周逐渐增加。在基线和第 15 周评估体重、身体成分、总每日能量消耗（TDEE）、能量摄入（EI）、睡眠、久坐行为（SB）、非运动性身体活动（NEPA）和最大有氧能力。两组的研究保留率均为 94%，对监督运动计划的依从性均≥90%。AM 和 PM 组的体重变化分别为-0.9 ± 2.8 公斤和-1.4 ± 2.3 公斤。AM 和 PM 均增加了 TDEE（AM：222 ± 399 千卡/天，PM：90 ± 150 千卡/天）。AM 组的 EI 增加（99 ± 198 千卡/天），PM 组的 EI 减少（-21 ± 156 千卡/天）。将超重和肥胖的成年人随机分配到早上或晚上进行有氧运动，并保持较高的依从性是可行的。未来的试验需要了解运动时间如何影响能量平衡和体重调节。
