Psychosocial mediators of physical activity behavior among adults and children
Psychosocial mediators of physical activity behavior among adults and children
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DOI：
10.1016/s0749-3797(02)00471-3
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发表时间：
2002-08-01
影响因子：
5.5
通讯作者：
Dunn, AL
中科院分区：
文献类型：
--
作者：
Lewis, BA;Marcus, BH;Dunn, AL
背景：研究基于理论的体育活动（PA）干预的研究人员假设，通过改变理论结构来调节干预与PA行为之间的关系，干预是有效的。研究表明，PA干预对增加PA行为是有效的。然而，有效的干预是否由于理论结构的预测变化仍然知之甚少。方法：通过文献检索、个人档案检索和个人通信收集采用实验设计并符合其他评估中介标准的成人或儿童PA干预中理论结构（即中介）的研究。只有检查干预对假设中介的直接影响的研究被认为是相关的。在这项研究中。结果：根据我们的标准，成人文献检索得到10项研究，儿童文献检索得到2项研究。最常见的中介包括改变的行为过程、改变的认知过程、自我效能、决策平衡、社会支持和享受。研究表明，行为过程可能是中介。有一些证据支持自我效能感作为中介的重要性。结论：很少有研究使用统计学推荐的方法来检查PA干预研究中的介质。因此，目前还不可能对所审查的调解员的重要性得出明确的结论。需要使用推荐的统计方法进行额外的PA中介干预研究，以真正检验基于理论的PA干预是否由于理论结构的预测变化而有效。
Background: Researchers examining theory-based, physical activity (PA) interventions postulate that interventions are effective by changing theoretical constructs hypothesized to mediate the relationship between the intervention and PA behavior. Research indicates that PA interventions are effective for increasing PA behavior. However, whether effective interventions are due to predicted changes in theoretical constructs remains poorly understood.Methods: Studies that examined theoretical constructs (i.e., mediators) in PA interventions of adults or children, which used experimental designs and met other criteria for evaluating mediation, were collected via literature searches, personal searches of files, and personal communications. Only studies examining the direct effect of the intervention on the hypothesized mediator were considered relevant. for this study.Results: Based on our criteria, the adult literature search yielded ten studies and the child literature search yielded two studies. The most common mediators examined included behavioral processes of change, cognitive processes of change, self-efficacy, decisional balance, social support, and enjoyment. Research indicates that behavioral processes are likely mediators. There was some support for the importance of self-efficacy as a mediator.Conclusions: Few studies have used statistically recommended methods to examine mediators in PA intervention studies. Therefore, definitive conclusions about the importance of the mediators reviewed are not possible at this time. Additional PA mediator-intervention studies using recommended statistical methods are necessary to truly test if theory-based PA interventions are effective due to predicted changes in theoretical constructs.