Behavioral Impacts of Sequentially versus Simultaneously Delivered Dietary Plus Physical Activity Interventions: the CALM Trial
Behavioral Impacts of Sequentially versus Simultaneously Delivered Dietary Plus Physical Activity Interventions: the CALM Trial
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DOI：
10.1007/s12160-013-9501-y
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发表时间：
2013-10-01
影响因子：
3.8
通讯作者：
Ahn, David K.
中科院分区：
文献类型：
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作者：
King, Abby C.;Castro, Cynthia M.;Ahn, David K.
很少有研究评估如何结合饮食和身体活动（PA）干预措施来提高依从性。我们测试了先后顺序的以及同时进行的饮食加身体活动干预如何影响行为改变。200名44岁以上不符合国家身体活动和饮食建议（每日水果和蔬菜摄入量以及饱和脂肪热量百分比）的参与者被随机分配到四种为期12个月的电话干预措施中的一种：先后顺序（先运动或先饮食）、同时进行或注意力控制。在4个月时，先后顺序组中加入另一种健康行为。93%的参与者在12个月内都得以保留。在4个月时，只有先运动组改善了身体活动情况，只有同时进行组和先饮食组改善了饮食变量。在12个月时，同时进行组中所有行为的平均水平都符合建议，但先运动组和先饮食组则不符合。我们观察到早期饮食干预对身体活动可能存在一种行为抑制效应，这值得进一步研究。
Few studies have evaluated how to combine dietary and physical activity (PA) interventions to enhance adherence.We tested how sequential versus simultaneous diet plus PA interventions affected behavior changes.Two hundred participants over age 44 years not meeting national PA and dietary recommendations (daily fruit and vegetable servings and percent of calories from saturated fat) were randomized to one of four 12-month telephone interventions: sequential (exercise first or diet first), simultaneous, or attention control. At 4 months, the other health behavior was added in the sequential arms.Ninety-three percent of participants were retained through 12 months. At 4 months, only exercise first improved PA, and only the simultaneous and diet-first interventions improved dietary variables. At 12 months, mean levels of all behaviors in the simultaneous arm met recommendations, though not in the exercise- and diet-first arms.We observed a possible behavioral suppression effect of early dietary intervention on PA that merits investigation.