J Phys Act Health. 2018 May 1;15(5):361-368. doi: 10.1123/jpah.2017-0202. Epub 2018 Mar 23.
Neighborhood and psychosocial variables are related to physical activity (PA), yet interactions between these factors in predicting PA are infrequently studied.
This analysis examines the independent associations and interactions between self-reported neighborhood and psychosocial variables in relation to moderate to vigorous PA (MVPA) among adults from a US panel sample.
In adjusted models, neighborhood social capital was positively associated with meeting MVPA guidelines. Fewer barriers, greater self-efficacy, and greater autonomous motivation also corresponded with greater odds of meeting MVPA guidelines. An interaction between social capital and autonomous motivation showed that social capital was only associated with MVPA when autonomous motivation was high. Participants who reported both high autonomous motivation and high social capital were most likely to meet MVPA guidelines.
Neighborhood social capital, barriers, self-efficacy, and autonomous motivation may be important correlates in promoting adults' PA. Future directions include using objective neighborhood and PA data in similar analyses and investigating associations of neighborhood and psychosocial variables with multiple PA activities. Intervention research to promote PA should also examine whether effects of interventions targeting psychosocial constructs are moderated by features of an individual's neighborhood or whether perceived social capital can be addressed in interventions in conjunction with psychosocial variables.
邻里和社会心理变量与身体活动（PA）有关，但很少有研究探讨这些因素在预测 PA 方面的相互作用。
本分析在美国小组样本中，研究了自我报告的邻里和社会心理变量与成年人中度到剧烈体力活动（MVPA）之间的独立关联和相互作用。
在调整后的模型中，邻里社会资本与达到 MVPA 指南呈正相关。较少的障碍、更高的自我效能感和更强的自主动机也与达到 MVPA 指南的可能性更大相关。社会资本与自主动机之间的相互作用表明，只有当自主动机较高时，社会资本才与 MVPA 相关。报告高自主动机和高社会资本的参与者最有可能达到 MVPA 指南。
邻里社会资本、障碍、自我效能感和自主动机可能是促进成年人 PA 的重要相关因素。未来的研究方向包括在类似的分析中使用客观的邻里和 PA 数据，并研究邻里和社会心理变量与多种 PA 活动的关联。促进 PA 的干预研究还应研究干预针对社会心理结构的效果是否受到个体邻里特征的调节，或者感知到的社会资本是否可以与社会心理变量一起在干预中解决。
