行为改变与“大一新生15磅增重”现象：追踪大学一年级女生的身体活动和饮食模式

Behavior change and the freshman 15: tracking physical activity and dietary patterns in 1st-year university women.

作者信息

Jung Mary Elizabeth, Bray Steven Russell, Martin Ginis Kathleen Anne

机构信息

Department of Kinesiology, McMaster University, ON, Canada.

出版信息

J Am Coll Health. 2008 Mar-Apr;56(5):523-30. doi: 10.3200/JACH.56.5.523-530.

DOI:10.3200/JACH.56.5.523-530

PMID:18400664

Abstract

OBJECTIVE AND PARTICIPANTS

The authors assessed the stability of diet and physical activity and their relationship to weight changes in first-year university women.

METHODS

They collected anthropometric and body composition data from 101 resident women at the beginning of their first year of college and again at 12 months. The authors obtained physical activity and dietary logs 4 times throughout the year.

RESULTS

Caloric intake decreased over 12 months in all participants (p = .01). There was little change in physical activity in participants who lost weight (p = .73, d = .18). Those who gained weight experienced a trend toward decreased physical activity (p = .13, d = .38). A significant Time X Group interaction on physical activity (p = .04) suggests that physical activity patterns differed substantially between individuals who gained weight and those who lost weight.

CONCLUSIONS

Reduction in physical activity appears to be the defining characteristic in freshman weight gain.

摘要

目的与参与者

作者评估了大学一年级女生饮食和身体活动的稳定性及其与体重变化的关系。

方法

他们在大学一年级开始时和12个月后收集了101名住校女生的人体测量和身体成分数据。作者全年4次获取身体活动和饮食记录。

结果

所有参与者的热量摄入在12个月内均有所下降（p = .01）。体重减轻的参与者身体活动变化不大（p = .73，d = .18）。体重增加的参与者身体活动呈下降趋势（p = .13，d = .38）。身体活动上显著的时间×组间交互作用（p = .04）表明，体重增加者和体重减轻者的身体活动模式存在显著差异。