Ford Earl S, Kohl Harold W, Mokdad Ali H, Ajani Umed A
Division of Adult and Community Health, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA.
Obes Res. 2005 Mar;13(3):608-14. doi: 10.1038/oby.2005.65.
We examined the associations among physical activity, sedentary behavior, and metabolic syndrome in a representative sample of U.S. adults.
A total of 1626 men and women > or =20 years old from National Health and Nutrition Examination Survey 1999 to 2000 who attended the morning examination were evaluated. The metabolic syndrome was defined by using the definition from the National Cholesterol Education Program.
In unadjusted analysis, participants who did not engage in any moderate or vigorous physical activity during leisure time had almost twice the odds of having metabolic syndrome [odds ratio (OR), 1.90; 95% confidence interval (CI), 1.22 to 2.97] as those who reportedly engaged in > or =150 min/wk of such activity. Adjustment for age, sex, race or ethnicity, educational status, smoking status, and alcohol use attenuated the OR (OR, 1.46; 95% CI, 0.87 to 2.45). Compared with participants who watched television or videos or used a computer <1 h/d outside of work, the adjusted ORs for having metabolic syndrome were 1.41 (95% CI 0.80 to 2.51) for 1 h/d, 1.37 (95% CI 0.85 to 2.20) for 2 h/d, 1.70 (95% CI 0.92 to 3.14) for 3 h/d, and 2.10 (95% CI 1.27 to 3.47) for > or =4 h/d. Additional adjustment for physical activity or sedentary behavior minimally affected the ORs.
Sedentary behavior is an important potential determinant of the prevalence of the syndrome. Efforts to lessen the amount of time that U.S. adults spend watching television or videos or using a computer, especially if coupled to increases in physical activity, could result in substantial decreases in the prevalence of metabolic syndrome.
我们在美国成年人的代表性样本中研究了身体活动、久坐行为与代谢综合征之间的关联。
对1999年至2000年参加上午体检的1626名年龄大于或等于20岁的男性和女性进行了评估。代谢综合征采用国家胆固醇教育计划的定义。
在未经调整的分析中，休闲时间不进行任何中度或剧烈身体活动的参与者患代谢综合征的几率几乎是据报告每周进行150分钟或以上此类活动者的两倍[优势比（OR），1.90；95%置信区间（CI），1.22至2.97]。对年龄、性别、种族或族裔、教育程度、吸烟状况和饮酒情况进行调整后，优势比有所降低（OR，1.46；95%CI，0.87至2.45）。与工作以外每天看电视、视频或使用电脑时间少于1小时的参与者相比，每天看电视、视频或使用电脑1小时的参与者患代谢综合征的调整后优势比为1.41（95%CI，0.80至2.51），2小时为1.37（95%CI，0.85至2.20），3小时为1.70（95%CI，0.92至3.14），4小时或以上为2.10（95%CI，1.27至3.47）。对身体活动或久坐行为进行额外调整对优势比的影响最小。
久坐行为是该综合征患病率的一个重要潜在决定因素。努力减少美国成年人看电视、视频或使用电脑的时间，特别是如果与增加身体活动相结合，可能会使代谢综合征的患病率大幅降低。
