Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Rd., Ottawa, ON, K1H 8L1, Canada; School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, 75 Laurier Ave E, Ottawa, ON, K1N 6N5, Canada.
Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, 401 Smyth Rd., Ottawa, ON, K1H 8L1, Canada.
Appetite. 2018 Aug 1;127:266-273. doi: 10.1016/j.appet.2018.05.016. Epub 2018 May 14.
Watching television or listening to music while exercising can serve as motivating factors, making it more pleasant to exercise for some people. However, it is unknown whether these stimuli influence food intake and/or physical activity energy expenditure (PAEE) for the remainder of the day, potentially impacting energy balance and weight control. We examined the effects of watching television or listening to music while exercising on post-exercise energy intake and expenditure. Our study was a randomized crossover design, in which 24 male adolescents (mean age: 14.9 ± 1.1 years) completed three 30-min experimental conditions consisting of walking/jogging on a treadmill at 60% of heart rate reserve while (1) watching television; (2) listening to music; or (3) exercising with no other stimulus (control). An ad libitum lunch was offered immediately after the experimental conditions, and a dietary record was used to assess food intake for the remainder of the day. An Actical accelerometer was used to estimate PAEE until bedtime. The primary outcome measure was post-exercise energy intake and expenditure (kJ). We found that exercising while watching television or listening to music did not significantly affect post-exercise energy intake or energy expenditure. Exercising on a treadmill was found to be significantly more enjoyable while watching television than with no stimulus present. Ratings of perceived exertion were not significantly different between conditions. Overall, our results suggest that watching television or listening to music while exercising does not impact post-exercise energy intake or expenditure in male adolescents, which may have positive implications for adolescents who may need additional motivation to participate in physical activity.
观看电视或听音乐可以作为锻炼的动力因素，使一些人更愿意锻炼。然而，目前尚不清楚这些刺激因素是否会影响一天中剩余时间的食物摄入量和/或体力活动能量消耗（PAEE），从而可能影响能量平衡和体重控制。我们研究了锻炼时观看电视或听音乐对运动后能量摄入和支出的影响。我们的研究采用随机交叉设计，24 名男性青少年（平均年龄：14.9±1.1 岁）完成了三种 30 分钟的实验条件，包括在跑步机上以 60%的心率储备行走/慢跑：（1）观看电视；（2）听音乐；或（3）在没有其他刺激的情况下锻炼（对照）。实验条件结束后立即提供随意午餐，并使用膳食记录评估当天剩余时间的食物摄入量。使用 Actical 加速度计估计 PAEE 直到就寝时间。主要结果测量是运动后的能量摄入和支出（kJ）。我们发现，观看电视或听音乐时锻炼不会显著影响运动后的能量摄入或能量支出。与没有刺激相比，在观看电视时，在跑步机上锻炼被发现更有趣。条件之间的感知用力评分没有显著差异。总体而言，我们的结果表明，男性青少年在锻炼时观看电视或听音乐不会影响运动后的能量摄入或支出，这可能对需要额外动力来参加体育活动的青少年产生积极影响。
