Pate R R, Frongillo E A, McIver K L, Colabianchi N, Wilson D K, Collie-Akers V L, Schultz J A, Reis J, Madsen K, Woodward-Lopez G, Berrigan D, Landgraf A, Nagaraja J, Strauss W J
Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
Department of Health Promotion, Education, and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
Pediatr Obes. 2018 Oct;13 Suppl 1(Suppl 1):72-81. doi: 10.1111/ijpo.12426. Epub 2018 Jun 13.
Community initiatives to promote physical activity in children are common, but evidence supporting their effectiveness is limited.
The objective of this study is to examine the relationships between community programmes and policies and children's physical activity in a large and diverse sample of US communities.
Programmes and policies to promote children's physical activity were assessed in 130 communities by key informant interviews, and physical activity behaviours were measured by self-report and parental report in samples of children in each community (total n = 5138). Associations between composite indices of community programmes and policies and indicators of total and moderate-to-vigorous physical activity were examined without and with adjustment for demographic factors.
An index reflecting the 6-year history of the number of behaviour change strategies used in community programmes and policies was positively associated with children's moderate-to-vigorous physical activity. This association was attenuated with adjustment for demographic factors. Effect modification analyses found that the association was positive among non-Hispanic children but was negative for Hispanic children.
Community initiatives to promote physical activity in children were positively associated with children's physical activity in non-Hispanic children. Such initiatives were negatively associated with physical activity in Hispanic children, suggesting that future research should consider unique cultural factors when designing community initiatives to promote activity in this population sub-group.
社区促进儿童身体活动的倡议很常见，但支持其有效性的证据有限。
本研究的目的是在大量多样化的美国社区样本中，考察社区项目和政策与儿童身体活动之间的关系。
通过关键 informant 访谈对 130 个社区中促进儿童身体活动的项目和政策进行评估，并通过自我报告和家长报告对每个社区儿童样本（总计 n = 5138）的身体活动行为进行测量。在不考虑和考虑人口统计学因素调整的情况下，考察社区项目和政策的综合指数与总身体活动及中度至剧烈身体活动指标之间的关联。
一个反映社区项目和政策中使用的行为改变策略数量的 6 年历史的指数与儿童的中度至剧烈身体活动呈正相关。在对人口统计学因素进行调整后，这种关联减弱。效应修正分析发现，这种关联在非西班牙裔儿童中为正，但在西班牙裔儿童中为负。
社区促进儿童身体活动的倡议与非西班牙裔儿童的身体活动呈正相关。此类倡议与西班牙裔儿童的身体活动呈负相关，这表明未来研究在设计促进该人群亚组身体活动的社区倡议时应考虑独特的文化因素。
