Pérusse-Lachance Emilie, Brassard Patrice, Chaput Jean-Philippe, Drapeau Vicky, Teasdale Normand, Sénécal Caroline, Tremblay Angelo
Department of Physical Activity Sciences, University of Quebec, Trois-Rivieres, QC, Canada G9A 5H7.
Department of Kinesiology, Faculty of Medicine, Laval University, Quebec City, QC, Canada G1V 0A6.
ISRN Nutr. 2013 May 29;2013:723250. doi: 10.5402/2013/723250. eCollection 2013.
The aim of this study was to examine the acute effects of mental work and moderate-intensity physical activity on various components of energy balance in young and healthy adults. With the use of a randomized crossover design, 35 participants aged 24 ± 3 years completed three 45-min conditions, namely, (i) resting in a sitting position (control), (ii) reading and writing (mental work (MW)), and (iii) exercising on a treadmill at 40% of peak oxygen uptake (exercise), followed by an ad libitum lunch. The endpoints were spontaneous energy intake (EI), energy expenditure (EE), appetite sensations, and EI for the remainder of the day. We observed that the energy cost of the control and MW conditions was about the same whereas the exercise condition increased EE to a greater extent in men than women. Exercise induced a decrease in EI relative to EE compared to the control condition that was more pronounced in men than women. However, women tended to increase their energy intake after the MW condition compared to the control one whereas an opposite trend was observed in men. None of the appetite sensation markers differed significantly between both sexes. In conclusion, men and women have specific food intake patterns when submitted to cognitive and physical stimuli.
本研究的目的是检验脑力劳动和中等强度体育活动对年轻健康成年人能量平衡各组成部分的急性影响。采用随机交叉设计，35名年龄在24±3岁的参与者完成了三种45分钟的情况，即：(i) 坐姿休息（对照），(ii) 阅读和写作（脑力劳动（MW）），以及(iii) 在跑步机上以峰值摄氧量的40%进行锻炼（运动），随后是随意午餐。终点指标是自发能量摄入（EI）、能量消耗（EE）、食欲感觉以及当天剩余时间的EI。我们观察到，对照和MW情况的能量消耗大致相同，而运动情况使男性的EE增加幅度大于女性。与对照情况相比，运动导致EI相对于EE减少，在男性中比在女性中更明显。然而，与对照情况相比，女性在MW情况后倾向于增加能量摄入，而男性则观察到相反的趋势。两性之间食欲感觉标志物均无显著差异。总之，男性和女性在受到认知和身体刺激时具有特定的食物摄入模式。
