Walker J, Collins L C, Nannini L, Stamford B A
Respiratory Care Program, University of Louisville, KY 40292.
Int J Obes Relat Metab Disord. 1992 May;16(5):341-7.
The purposes of this study were: (i) to determine the relative thermic effects of smoking and exercise in fasted and postprandial states, and (ii) to determine whether there is a weight-controlling caloric advantage of moderate exercise in the postprandial state which might be used upon smoking cessation. The subjects were ten physically fit, young, male smokers. Twenty minutes of smoking (two cigarettes) while fasted resulted in a 6.0% (12.5 kcals/3h) increase in resting metabolic rate (RMR), and 20 minutes of walking (5.8 km/h) while fasted increased post-exercise RMR by 5.8% (11.7 kcals/3h). The thermic effect of a meal (TEM) (740 ml, 874 kcals) increased RMR 21.0% (42.3 kcals/3h), which was increased to 22.1% by smoking (45.0 kcals/3h). Exercise after a meal increased RMR 29.1% (58.1 kcals/3h). Post-prandial exercise potentiated the TEM, as the energy cost was 4.0 kcals/3h greater than the sum of the thermic effect of the meal plus the thermic effect of exercise in the fasted state. Postprandial exercise expended 112.2 kcals/20 min vs. 101.6 kcals/20 min for fasted exercise, a difference of 10.4%. The difference increased to 14.6% when the post-exercise thermic effect was included. It was concluded that the thermic effect of smoking and exercise were similar in the fasted state, but were substantially different postprandially. Moderate postprandial exercise appears to offer a substantial weight-controlling advantage when compared with fasted exercise.
（i）确定在禁食和餐后状态下吸烟和运动的相对热效应，以及（ii）确定餐后进行适度运动是否具有控制体重的热量优势，这种优势在戒烟时可能会被利用。研究对象为10名身体健康、年轻的男性吸烟者。禁食时抽20分钟烟（两支香烟）使静息代谢率（RMR）增加6.0%（12.5千卡/3小时），禁食时以5.8公里/小时的速度步行20分钟使运动后RMR增加5.8%（11.7千卡/3小时）。一顿饭（740毫升，874千卡）的热效应（TEM）使RMR增加21.0%（42.3千卡/3小时），吸烟使其增加到22.1%（45.0千卡/3小时）。饭后运动使RMR增加29.1%（58.1千卡/3小时）。餐后运动增强了TEM，因为能量消耗比禁食状态下餐的热效应与运动热效应之和高4.0千卡/3小时。餐后运动20分钟消耗112.2千卡，而禁食运动20分钟消耗101.6千卡，相差10.4%。当包括运动后的热效应时，差异增加到14.6%。研究得出结论，禁食状态下吸烟和运动的热效应相似，但餐后则有显著差异。与禁食运动相比，适度的餐后运动似乎具有显著的控制体重优势。
