Tracking of obesity and physical activity from childhood to adulthood: The Physical Activity Longitudinal Study
Tracking of obesity and physical activity from childhood to adulthood: The Physical Activity Longitudinal Study
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DOI：
10.3109/17477160802596171
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发表时间：
2009-01-01
影响因子：
--
通讯作者：
Katzmarzyk, Peter T.
中科院分区：
文献类型：
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作者：
Herman, Katya M.;Craig, Cora L.;Katzmarzyk, Peter T.
Objective.身体质量指数（BMI）从儿童期到成年期表现出中等到强的稳定性，而体力活动（PA）的跟踪效果较差。跟踪研究的随访时间往往有限。目的是调查从青年到成年的22年BMI和PA跟踪。方法.受试者包括374名参与者，年龄在7至18岁，在1981年加拿大健身调查，谁在2002-04年重新评估。BMI和闲暇时间PA能量消耗（AEE）的稳定性通过年龄间相关性、极端五分位数和BMI状态的维持以及从青年BMI预测成人超重来评估。结果BMI跟踪在女性中为中度至重度（r = 0.42-0.65），在男性中为中度（r = 0.29-0.53）。在BMI最高和最低的五分之一人群中，分别约有38%和42%的青年成年后仍留在这些五分之一人群中。大约83%的超重青年成年后仍然超重，而85%的超重成年人不是超重青年。几乎所有健康体重的成年人都是健康体重的青年。成年期超重的几率是健康体重青年的6.2倍（95%CI：2.2-17.2）。PA跟踪超过22年是低和不显着的，但在最后15年中度。在最高和最低的五分之一人口中，分别只有16%和18%的青年作为成年人留在这些五分之一人口中。结论. BMI，但不是PA，在这个样本中跟踪了22年。大多数超重的青少年成年后仍然超重;然而，大多数超重的成年人并不是超重的青少年。
Objective. Body mass index (BMI) has shown moderate to strong stability through childhood into adulthood, while physical activity (PA) tracks less well. Tracking studies have often had limited follow-up lengths. The aim was to investigate BMI and PA tracking over 22 years from youth to adulthood. Methods. Subjects included 374 participants aged 7 to 18 years in the 1981 Canada Fitness Survey, who were re-evaluated in 2002-04. The stability of BMI and leisure-time PA energy expenditure (AEE) was assessed by inter-age correlations, maintenance of extreme quintiles and BMI status, and the prediction of adult overweight from youth BMI. Results. BMI tracking was moderate to strong (r = 0.42-0.65) in females, and moderate (r = 0.29-0.53) in males. Approximately 38% and 42% of youth in the highest and lowest BMI quintiles, respectively, remained in these quintiles as adults. About 83% of overweight youth remained overweight as adults, while 85% of overweight adults were not overweight youth. Almost all healthy weight adults had been healthy weight youth. The odds of being overweight in adulthood was 6.2 times greater (95% CI: 2.2-17.2) in overweight compared with healthy weight youth. PA tracking over 22 years was low and non-significant, but moderate over the final 15 years. Only 16% and 18% of youth in the highest and lowest PA quintiles, respectively, remained in these quintiles as adults. Conclusions. BMI, but not PA, tracked well over 22 years in this sample. The majority of overweight youth remained overweight as adults; however, the majority of overweight adults were not overweight youth.