Freedman-Akabas S, Colt E, Kissileff H R, Pi-Sunyer F X
Am J Clin Nutr. 1985 Mar;41(3):545-9. doi: 10.1093/ajcn/41.3.545.
Thermogenesis after exercise was studied by measuring oxygen consumption in 23 subjects who were classified into three groups according to their routine level of physical activity. VO2 was first measured after a 30-minute rest period 4-hours after breakfast. Then each subject either exercised for 20 minutes at approximately the anaerobic threshold or on a separate non-exercise day remained recumbent. The subject then returned to, or remained, at rest. There was no significant difference in VO2 from the resting level from 40 minutes to 3 hours after exercise, between exercise and non-exercise days in any fitness group. Seven subjects also exercised for a longer period or at a higher intensity. Again, there was no significant difference in the time course of VO2 from 40 minutes to 220 minutes after exercise, between exercise and non-exercise days. Because no sustained effect of moderate or intense exercise on VO2 was demonstrated, we conclude that no appreciable caloric loss beyond that generated by the exercise period itself and the early recovery phase is found in either fit or unfit subjects. These data do not support claims for sustained increases in metabolic rate after exercise in weight-control programs.
通过测量23名受试者的耗氧量来研究运动后的产热情况，这些受试者根据其日常身体活动水平分为三组。早餐后4小时，在30分钟的休息期后首次测量VO₂。然后，每个受试者要么在大约无氧阈值下运动20分钟，要么在单独的非运动日保持卧位。之后受试者恢复休息或继续保持休息状态。在任何健康组中，运动日和非运动日之间，运动后40分钟至3小时内，VO₂与休息水平之间均无显著差异。7名受试者还进行了更长时间或更高强度的运动。同样，运动日和非运动日之间，运动后40分钟至220分钟内VO₂的时间进程也没有显著差异。由于未证明中等强度或高强度运动对VO₂有持续影响，我们得出结论，无论是健康还是不健康的受试者，除了运动期间本身和早期恢复阶段产生的热量损失外，没有发现明显的热量损失。这些数据不支持体重控制计划中关于运动后代谢率持续增加的说法。
