Impact of Greenspace Improvement on Physical Activity in a Low Income Community
绿地改善对低收入社区体育活动的影响
基本信息
- 批准号:8372695
- 负责人:
- 金额:$ 61.24万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-07-11 至 2017-04-30
- 项目状态:已结题
- 来源:
- 关键词:AccountingActive Biological TransportAfrican AmericanBehaviorCardiovascular DiseasesCognitiveCommunitiesControl GroupsCrimeDataData CollectionDiabetes MellitusDietEnrollmentEnvironmentExperimental DesignsFundingFutureHealthHealth StatusHouseholdIncidenceIndividualInterventionInterviewLongitudinal StudiesLow incomeMalignant NeoplasmsMeasuresMediatingMental DepressionMonitorNatural experimentNeighborhoodsOutcomePatient Self-ReportPennsylvaniaPhysical activityPhysical environmentPoliciesPublic HealthQuestionnairesRecruitment ActivityRelative (related person)ResearchResearch InfrastructureSafetySamplingSelection BiasSelf EfficacyServicesSupermarketSurveysTimeTrainingbehavior changecohesioncostcost effectiveenvironmental changeenvironmental interventionevidence baseimprovedobesity preventionpost interventionsedentarysocial
项目摘要
DESCRIPTION (provided by applicant): Impact of greenspace improvement on physical activity in a low income community Dubowitz/PI PA-10-027 Regular physical activity (PA) contributes to a variety of positive health outcomes, including the prevention of obesity. Increasing evidence suggests that there are associations between a neighborhood environment conducive to PA (e.g., maintained greenspace) and levels of PA among its residents. However, it is unknown whether self-selection biases account for the associations, or whether geographic accessibility causally leads to greater PA. There have been repeated calls for longitudinal studies that could provide empirical evidence on environmental-level changes and their impact on PA behaviors, to strengthen the evidence base to inform greenspace policies and the use of public funds for environmental interventions, especially in low-income neighborhoods. In the near future, a low-income, predominantly African American neighborhood (the Hill District) in Pittsburgh, Pennsylvania will undergo a multi-million dollar endeavor to renovate approximately 30 acres of greenspace. This research will capitalize on a rare opportunity to evaluate this large natural experiment by assessing greenspace use and PA before and after renovations as well as changes in physical activity levels as measured by accelerometry among Hill residents relative to residents of Homewood, a demographically similar neighborhood in Pittsburgh that also has very limited greenspace but no immediate plans for renovation. We hypothesize that the greenspace renovations will result in increased PA, including more active transport and utilization of greenspace (i.e., parks, outdoor stairwells, connecting trails). Further, we will examine to the extent to which effects are mediated by social cognitive factors and moderated by perceived accessibility, social cohesion, and safety. We propose three specific aims: Specific Aim 1: Determine the impact of greenspace renovations on PA (e.g., minutes of moderate-to- vigorous PA (MVPA), sedentary behavior, active transport), measured by accelerometry and self-report, before renovations and 12 and 24 months post renovations compared to a matched control group. Specific Aim 2: Examine greenspace utilization for PA before and after renovations through direct observation and user surveys in the intervention and control neighborhoods. Specific Aim 3: Determine to what extent the impact of renovations on PA is: a) mediated by social norms and self-efficacy to engage in PA, and b) moderated by physical proximity to greenspace, perceived accessibility, social cohesion and safety. We will engage a large random sample (n=1320) of households from the Hill District and in Homewood. We will collect individual-level, greenspace utilization, and greenspace user data at baseline, 6-12 months and at 18 - 24 months post- renovations.
PUBLIC HEALTH RELEVANCE: Impact of greenspace improvement on physical activity in a low income community Dubowitz/PI PA-10-027 Project Narrative Changing the built environment, particularly greenspace renovation, is a way to increase spatial access to opportunities for physical activity, especially in low-income minority neighborhoods. Limited research has been adequately designed to assess the causal impact of environmental interventions on physical activity. Our study will employ rigorous measures of physical activity to
evaluate a well-powered, natural experiment to determine whether greenspace renovation can increase physical activity in lower-income, urban African Americans, a critical step to reducing obesity and eliminating health disparities in the United States.
描述(由申请人提供):低收入社区绿地改善对身体活动的影响Dubowitz/Pi PA-10-027定期身体活动(PA)有助于各种积极的健康结果,包括预防肥胖。越来越多的证据表明,有利于PA的邻里环境(例如,维护的绿地)与其居民中的PA水平之间存在关联。然而,目前尚不清楚是自我选择的偏见导致了这种联系,还是地理上的可达性导致了更大的PA。人们一再呼吁进行纵向研究,以提供关于环境水平变化及其对PA行为影响的经验证据,以加强证据基础,为绿地政策和使用公共资金进行环境干预提供信息,特别是在低收入社区。在不久的将来,宾夕法尼亚州匹兹堡的一个以非裔美国人为主的低收入社区(希尔区)将耗资数百万美元翻新约30英亩的绿地。这项研究将利用一个难得的机会来评估这个大型的自然实验,方法是评估翻修前后的绿地使用情况和PA,以及希尔居民相对于霍姆伍德居民的体力活动水平的变化。霍姆伍德位于匹兹堡,是一个人口结构相似的社区,绿地也非常有限,但目前没有翻新计划。我们假设,绿地改造将导致PA的增加,包括更积极地运输和利用绿地(即公园、室外楼梯间、连接步道)。此外,我们将考察影响在多大程度上受到社会认知因素的调节,并受到感知的可达性、社会凝聚力和安全性的调节。我们提出了三个具体目标:具体目标1:与匹配的对照组相比,在修复前、修复后12个月和24个月,通过加速度计和自我报告,确定绿地修复对PA的影响(例如,中度到剧烈PA(MVPA)、久坐行为、主动运输的分钟数)。具体目标二:通过对干预社区和对照社区的直接观察和用户调查,考察改造前后PA的绿地利用情况。具体目标3:确定翻修对PA的影响在多大程度上是:a)受社会规范和参与PA的自我效能的影响,以及b)受与绿地的实际接近、感知的可达性、社会凝聚力和安全性的调节。我们将从希尔区和霍姆伍德随机抽取大量家庭(n=1320)。我们将在基线、6-12个月和18-24个月收集个人水平、绿地利用率和绿地用户数据。
公共卫生相关性:低收入社区绿地改善对身体活动的影响Dubowitz/Pi PA-10-027项目叙述改变建成环境,特别是绿地改造,是增加空间获得身体活动机会的一种方式,特别是在低收入少数族裔社区。在评估环境干预对身体活动的因果影响方面,设计的研究有限。我们的研究将使用严格的体力活动措施来
评估一项强大的自然实验,以确定绿地改造是否可以增加低收入城市非裔美国人的体力活动,这是减少美国肥胖和消除健康差距的关键一步。
项目成果
期刊论文数量(0)
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Tamara Dubowitz其他文献
Tamara Dubowitz的其他文献
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{{ truncateString('Tamara Dubowitz', 18)}}的其他基金
Longitudinal Examination of Neighborhood Disadvantage, Cognitive Aging, and Alzheimer's Disease Risk in Disinvested, African American Neighborhoods
对投资撤资的非裔美国人社区的社区劣势、认知老化和阿尔茨海默病风险进行纵向调查
- 批准号:
10370185 - 财政年份:2022
- 资助金额:
$ 61.24万 - 项目类别:
Longitudinal Examination of Neighborhood Disadvantage, Cognitive Aging, and Alzheimer's Disease Risk in Disinvested, African American Neighborhoods
对投资撤资的非裔美国人社区的社区劣势、认知老化和阿尔茨海默病风险进行纵向调查
- 批准号:
10565869 - 财政年份:2022
- 资助金额:
$ 61.24万 - 项目类别:
Neighborhood Change: Impact on Sleep and Obesity-Related Health Disparities
社区变化:对睡眠和肥胖相关健康差异的影响
- 批准号:
9197333 - 财政年份:2015
- 资助金额:
$ 61.24万 - 项目类别:
Neighborhood Change: Impact on Sleep and Obesity-Related Health Disparities
社区变化:对睡眠和肥胖相关健康差异的影响
- 批准号:
8817924 - 财政年份:2015
- 资助金额:
$ 61.24万 - 项目类别:
Neighborhood Change: Impact on Sleep and Obesity-Related Health Disparities
社区变化:对睡眠和肥胖相关健康差异的影响
- 批准号:
9412184 - 财政年份:2015
- 资助金额:
$ 61.24万 - 项目类别:
Impact of Greenspace Improvement on Physical Activity in a Low Income Community
绿地改善对低收入社区体育活动的影响
- 批准号:
8831611 - 财政年份:2012
- 资助金额:
$ 61.24万 - 项目类别:
Impact of Greenspace Improvement on Physical Activity in a Low Income Community
绿地改善对低收入社区体育活动的影响
- 批准号:
8658050 - 财政年份:2012
- 资助金额:
$ 61.24万 - 项目类别:
Impact of Greenspace Improvement on Physical Activity in a Low Income Community
绿地改善对低收入社区体育活动的影响
- 批准号:
8508210 - 财政年份:2012
- 资助金额:
$ 61.24万 - 项目类别:
Does a New Supermarket Improve Dietary Behaviors of Low-income African Americans?
新超市能否改善低收入非裔美国人的饮食行为?
- 批准号:
8631389 - 财政年份:2010
- 资助金额:
$ 61.24万 - 项目类别:
Does a New Supermarket Improve Dietary Behaviors of Low-income African Americans?
新超市能否改善低收入非裔美国人的饮食行为?
- 批准号:
8451233 - 财政年份:2010
- 资助金额:
$ 61.24万 - 项目类别: