Changes in eating and physical activity behaviors across seven semesters of college: living on or off campus matters.
Changes in eating and physical activity behaviors across seven semesters of college: living on or off campus matters.
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DOI：
10.1177/1090198112467801
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发表时间：
2013-08
期刊：
影响因子：
--
通讯作者：
Maggs J
中科院分区：
文献类型：
--
作者：
Small M;Bailey-Davis L;Morgan N;Maggs J
从青春期到成年期是建立影响长期健康和慢性病风险的行为模式的重要时期。Nelson和他的同事推测，发育变化和生活状况的变化可能在大学生的营养和体育活动行为中发挥重要作用。大学生活研究是一项针对大学生的纵向研究，包括每学期连续14天的网络调查，数据用于检查七个学期的水果、蔬菜和含糖苏打水的摄入量、体力活动和久坐活动行为。每学期的估计值被计算出来，以确定学生食用水果、蔬菜和含糖苏打水、从事中等到剧烈的体育活动以及从事久坐活动的频率。用HLM6.04估计的四个模型被用来预测这些行为在七个学期中的变化。住在校内或校外被包括在内，以确定这是否解释了额外的差异。结果表明，在调查的七个学期中，很少有大学生摄入水果和蔬菜，也没有人在最佳水平上锻炼。从第一学期到第七学期，每天的水果和蔬菜摄入量和日常体力活动显著下降。对于这两个发现，住在校园外加剧了问题。久坐行为的平均小时数随着时间的推移而下降，至少喝一杯含糖苏打水的天数也是如此。居住地点不能解释这些积极趋势的额外差异。讨论了对政策、实践和未来研究的影响。
The transition from adolescence to adulthood is an important period for establishing behavioral patterns that affect long-term health and chronic disease risk. Nelson and colleagues speculated that developmental changes and changes in living situation may play an important role in the nutrition and physical activity behaviors of college students. Data from the University Life Study, a longitudinal study of college students that includes web-based surveys administered 14 consecutive days each semester, were used to examine fruit, vegetable, and sugared soda consumption, physical activity, and sedentary activity behaviors across seven semesters. Estimates for each semester were calculated to determine the frequency with which students consumed fruits, vegetables, and sugared soda, engaged in moderate to vigorous physical activity, and engaged in sedentary activities. Four models, estimated with HLM 6.04, were used to predict changes in these behaviors across the seven semesters. Living on or off campus was included to determine if this explained additional variance. Results indicated that few college students consumed fruits and vegetables or exercised at optimal levels during the seven semesters surveyed. Daily fruit and vegetable consumption and daily physical activity declined significantly from the first to the seventh semester. For both of these findings, living off campus exacerbated the problem. Average number of hours of sedentary behaviors declined over time, as did number of days on which at least one sugared soda was consumed. Living location did not explain additional variance in these positive trends. Implications for policy, practice, and future research are discussed.
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