Kawachi I, Troisi R J, Rotnitzky A G, Coakley E H, Colditz G A
Channing Laboratory, Harvard University, Boston, Mass. 02115-5899, USA.
Am J Public Health. 1996 Jul;86(7):999-1004. doi: 10.2105/ajph.86.7.999.
The purpose of this study was to examine prospectively whether exercise can modify weight gain after smoking cessation in women.
Data were analyzed from a 2-year follow-up period (1986-1988) in the Nurses' Health Study, an ongoing cohort of 121,700 US women aged 40 to 75 in 1986.
The average weight gain over 2 years was 3.0 kg in the 1474 women who stopped smoking, and 0.6 kg among the 7832 women who continued smoking. Among women smoking 1 to 24 cigarettes per day, those who quit without changing their levels of exercise gained an average of 2.3 kg more (95% confidence interval [CI] = 1.9, 2.6) than women who continued smoking. Women who quit and increased exercise by between 8 to 16 MET-hours (the work metabolic rate divided by the resting metabolic rate) per week gained 1.8 kg (95% CI = 1.0, 2.5), and the excess weight gain was only 1.3 kg (95% CI = 0.7, 1.9) in women who increased exercise by more than 16 MET-hours per week.
Smoking cessation is associated with a net excess weight gain of about 2.4 kg in middle-aged women. However, this weight gain is minimized if smoking cessation is accompanied by a moderate increase in the level of physical activity.
本研究旨在前瞻性地探讨运动是否能改变女性戒烟后的体重增加情况。
对护士健康研究中为期2年（1986 - 1988年）的随访数据进行分析，该研究是一个持续进行的队列研究，1986年有121,700名年龄在40至75岁的美国女性参与。
在1474名戒烟女性中，2年期间体重平均增加3.0千克，而在7832名继续吸烟的女性中，体重平均增加0.6千克。在每天吸烟1至24支的女性中，那些戒烟但运动水平未改变的女性比继续吸烟的女性平均多增重2.3千克（95%置信区间[CI] = 1.9, 2.6）。每周运动增加8至16梅脱-小时（工作代谢率除以静息代谢率）的戒烟女性增重1.8千克（95% CI = 1.0, 2.5），而每周运动增加超过16梅脱-小时的女性，额外体重增加仅为1.3千克（95% CI = 0.7, 1.9）。
中年女性戒烟与净体重增加约2.4千克相关。然而，如果戒烟同时适度增加身体活动水平，这种体重增加将减至最小。
