Why do individuals not lose more weight from an exercise intervention at a defined dose? An energy balance analysis.
Why do individuals not lose more weight from an exercise intervention at a defined dose? An energy balance analysis.
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DOI：
10.1111/j.1467-789x.2012.01012.x
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发表时间：
2012-10
期刊：
影响因子：
--
通讯作者：
Heymsfield SB
中科院分区：
文献类型：
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作者：
Thomas DM;Bouchard C;Church T;Slentz C;Kraus WE;Redman LM;Martin CK;Silva AM;Vossen M;Westerterp K;Heymsfield SB
运动干预导致的体重减轻往往低于预期。适度的体重减轻可以由能量摄入的增加、静息能量消耗的生理减少、瘦组织的增加或非运动活动的减少引起。低于预期，体重减轻也可能是由于预测模型中的薄弱和无效假设。为了调查这些原因，我们系统地回顾了监测运动处方依从性和测量运动引起的身体成分变化的研究。计算改变的身体能量储存，以确定每日总能量摄入和能量消耗之间的赤字。这些信息与现有的测量结果相结合，用于严格评估低运动引起的体重减轻的解释。我们的结论是，从大多数评估的运动干预措施中观察到的体重减轻幅度较小，主要是由于低剂量的规定运动能量消耗，伴随着热量摄入的增加。
Weight loss resulting from an exercise intervention tends to be lower than predicted. Modest weight loss can arise from an increase in energy intake, physiological reductions in resting energy expenditure, an increase in lean tissue or a decrease in non-exercise activity. Lower than expected, weight loss could also arise from weak and invalidated assumptions within predictive models. To investigate these causes, we systematically reviewed studies that monitored compliance to exercise prescriptions and measured exercise-induced change in body composition. Changed body energy stores were calculated to determine the deficit between total daily energy intake and energy expenditures. This information combined with available measurements was used to critically evaluate explanations for low exercise-induced weight loss. We conclude that the small magnitude of weight loss observed from the majority of evaluated exercise interventions is primarily due to low doses of prescribed exercise energy expenditures compounded by a concomitant increase in caloric intake.