Multilevel Physical Activity Intervention for Low Income Public Housing Residents

项目摘要 在过去的25年里，体力活动与几种慢性病标记物有关， 无数的研究已经测试了改善久坐人口体力活动的干预措施。其中大多数都是 干预研究试图通过改变个体水平驱动因素来改善身体活动行为 活动，比如积极的动机、态度和自我效能感。不幸的是，这些改变的努力 活动水平往往不会持续到最初的干预期之后。这种缺乏的一个可能原因是 可持续性是对促进体力活动的环境因素重视不够。 因此，注意力正在转移到更复杂的环境和社会对体力活动的贡献上， 旨在确定多层次战略，以便更好地针对需要帮助的群体进行干预。极少的测试 改变环境水平以增加体力活动在文献中是存在的。对干预措施的关注 正如最近的审查和医学研究所的报告所呼吁的那样，环境水平可能会 提供改变低收入人口体力活动所需的长期可持续变化。 该项目旨在测试一种新的多层次、多组分的包装，以增加中等强度的物理 居住在公共房屋开发项目中的人们的活动水平。我们的目标是评估一项 一揽子干预措施侧重于环境水平，以产生适度体力活动的变化 在公屋居民中。此外，我们将评估经过有效性测试的 个人层面的电子健康电话计划，以产生中等强度的体力活动的进一步变化。这个 这项研究的设计是一项前瞻性、整群随机对照试验，以住房开发为 随机化单位。在这四组析因、整群随机对照试验中，我们将比较 单独的环境干预(仅限E)，单独的个人干预(仅限I)，环境优势 个体干预(E+I)，全部针对对照组。调解和缓和我们的干预将是 评估过了。最后，我们将评估实施研究综合框架中的因素 审查未来在关键信息者中实施多层次体力活动干预的领域 公共房屋发展项目。

Project Summary Physical activity has been associated with several chronic disease markers for the past 25 years, and countless studies have tested interventions to improve physical activity of sedentary populations. Most of these intervention studies have attempted to improve physical activity behaviors by changing individual level drivers of activity, like motivation, attitudes, and self-efficacy for being active. Unfortunately, these efforts to change activity levels are often not sustained beyond the initial intervention period. One possible cause of this lack of sustainability is that insufficient attention was paid to environmental factors that facilitate physical activity. Thus, attention is shifting to more complex environmental and social contributions to physical activity, with the aim of identifying multi-level strategies to better target interventions to groups that need help. Very few tests of changing environment levels to increase physical activity exist in the literature. A focus on interventions at environmental levels, as called for by recent reviews as well as reports from the Institute of Medicine, might provide the long-term sustainable change that is needed to change physical activity in low-income populations. This project seeks to test a new multi-level, multi-component package to increase moderate intensity physical activity levels of people living in public housing developments. Our aims are to evaluate the effects of an intervention package focused on the environment level to produce changes in moderate physical activity among public housing residents. Furthermore, we will evaluate the added effects of an efficacy-tested individual-level eHealth phone program to produce further changes in moderate intensity physical activity. The design of this study is a prospective, cluster randomized controlled trial, with housing developments as the units of randomization. In this four group, factorial, cluster randomized controlled trial, we will compare an environmental intervention alone (E only), an individual intervention alone (I only), an environmental plus individual intervention (E+I), all against a control group. Mediation and moderation of our intervention will be assessed. Lastly, we will assess factors from the Consolidated Framework for Implementation Research domains to examine future implementation of a multi-level physical activity intervention among key informants in public housing developments.