Shephard R J
Faculty of Physical Education and Health, Department of Public Health Sciences, University of Toronto, Canada.
Int J Sports Med. 1999 Jan;20(1):23-7. doi: 10.1055/s-2007-971086.
The Harvard Alumni study is reviewed critically with a view to resolving the apparent conflict between the conclusions drawn from this research and the current consensus on optimal patterns of physical activity for health. The optimal energy expenditure reported for the Harvard data set is less than at first appears, since the estimated expenditures are gross rather than net values. Further, the optimal energy expenditure has been over-estimated, because too high a cost was assumed for stair climbing, and sport involvement may also have been over-reported. The data do not as yet allow the assertion that benefit is obtained only from vigorous physical activity, and there seems little conflict with the current consensus on the benefits of moderate physical activity.
对哈佛校友研究进行了批判性审视，目的是解决该研究得出的结论与当前关于健康的最佳体育活动模式的共识之间明显的冲突。哈佛数据集报告的最佳能量消耗比最初看起来要少，因为估计的消耗是总值而非净值。此外，最佳能量消耗被高估了，因为假设爬楼梯的成本过高，而且参与体育运动的情况可能也被高估了。这些数据目前还不能断言只有剧烈体育活动才有益处，而且与当前关于适度体育活动益处的共识似乎没有太大冲突。
