Is physical activity a gateway behavior for diet? Findings from a physical activity trial
Is physical activity a gateway behavior for diet? Findings from a physical activity trial
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DOI：
10.1016/j.ypmed.2007.12.012
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发表时间：
2008-03-01
影响因子：
5.1
通讯作者：
Marcus, Bess H.
中科院分区：
文献类型：
--
作者：
Dutton, Gareth R.;Napolitano, Melissa A.;Marcus, Bess H.
Objective.虽然横截面研究表明缺乏身体活动和不良饮食往往同时发生，但针对一种行为的干预措施如何影响其他行为的纵向数据有限。目前的调查研究了在身体活动（PA）干预的背景下，健康行为之间的横向和纵向关系。久坐女性（n=280;平均年龄=47.1; 94.6%为白人）入组了一项随机对照PA试验，该试验比较了基于打印的、个性化定制的和针对性别的PA干预措施对健康/控制状况的影响。妇女完成基线，第3个月和第12个月的评估，包括PA和饮食行为的措施。在PA变化的更高级阶段的参与者报告的水果/蔬菜消费量显着高于不太高级阶段的参与者，尽管饮食和每周活动时间之间的关系不太明显。定制和有针对性的基于打印的PA干预对水果/蔬菜摄入量没有影响，尽管观察到脂肪摄入量从基线（M=31.24%）到第3个月（M=30.41%），p < 0.03，以及从基线到第12个月（M=30.36%），p < 0.01显著减少。PA的变化并不能预测饮食行为的改善。虽然在PA干预的背景下脂肪摄入量减少，但水果/蔬菜摄入量保持不变。此外，PA没有作为饮食改善的门户行为。事实上，活动的改善与脂肪摄入量的增加而不是减少有关。(c)2007年爱思唯尔公司All rights reserved.
Objective. While cross-sectional research indicates physical inactivity and poor diet tend to co-occur, there are limited longitudinal data on how interventions targeting one behavior affect other behaviors. The current investigation examined cross-sectional and longitudinal relationships between health behaviors within the context of a physical activity (PA) intervention.Methods. Sedentary women (n=280; mean age=47.1; 94.6% Caucasian) were enrolled in a randomized controlled PA trial comparing the effects of print-based, individually-tailored and gender-targeted PA interventions to a wellness/control condition. Women completed baseline, month 3, and month 12 assessments that included measures of PA and dietary behaviors.Results. Participants in more advanced PA stages of change reported significantly greater fruits/vegetables consumption than participants in less advanced stages, although the relationships between diet and minutes of weekly activity were less pronounced. The tailored and targeted print-based PA interventions had no effect on fruit/vegetable intake, although significant reductions in fat intake were observed from baseline (M=31.24%) to month 3 (M=30.41%), p < 0.03: and baseline to month 12 (M=30.36%), p < 0.01. Changes in PA were not predictive of improvements in eating behaviors.Conclusions. Although fat intake decreased in the context of this PA intervention, fruit/vegetable intake remained unchanged. Also, PA did not serve as a gateway behavior for dietary improvements. In fact, improvements in activity were associated with increases rather than decreases in fat intake. (c) 2007 Elsevier Inc. All rights reserved.