COMMUNITY-BASED PARTICIPATORY RESEARCH

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 长期目标有两个方面：1）通过使用学校社区参与式研究方法（CBPR）增加美国印第安学龄儿童的体育活动（PA），对超重/肥胖的发展和风险产生积极影响;和2）评估互联网提供的PA行为矫正计划对PA水平，心脏代谢疾病风险因素，和心理社会/行为变量在中年超重/肥胖的成年人居住在农村社区。 目标1  CBPR方法被用来建立和实施一个基于网络的PA跟踪工具（计步器测量步骤或每日分钟）在美国印第安学区。 选择青年危险行为调查项目和身体质量指数的重复纵向测量结合实施和修改的文化关注的学校开发的PA干预。目前正在第二个较大的农村学校社区采用类似的社区能力建设方法实施基于网络的工具。 目标2  最近完成了一项市售的、互联网提供的、基于理论的体力活动行为改变计划的PA和心血管代谢疾病风险因素疗效试验（随机对照试验; RCT）。 研究结果表明，PA水平和超重/肥胖成人中心性肥胖症的短期结果很强，但一年后PA复发显著。 中心性肥胖的改善维持在一年。 有证据表明，长期疗效可通过以下方式增强：1）更大的互联网互动性和吸引人的内容; 2）逐渐减少的干预后断奶期。 目前正在招募一项有效性试验，对互联网提供的PA干预措施进行这些基于证据的修改，并将在干预后立即和一年内采取措施。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The long-term goals are two-fold: 1) to positively influence the development of and risk for overweight/obesity through increased participation in physical activity (PA) in American Indian schoolchildren using a school community-based participatory research approach (CBPR); and 2) to evaluate the effectiveness of an internet-delivered PA behavior modification program on PA levels, cardiometabolic disease risk factors, and psychosocial/behavioral variables in middle-aged overweight/obese adults residing in rural communities. Goal 1  A CBPR approach was used to build and implement a web-based PA tracking tool (pedometer measured steps or daily minutes) in an American Indian school district. Repeated longitudinal measurement of select Youth Risk Behavior Survey items and body mass index are made in conjunction with implementation and modification of a culturally attentive school-developed PA intervention. The web-based tool is currently being implemented in a second larger rural school community using a similar CBPR approach. Goal 2  PA and cardiometabolic disease risk factor efficacy testing (randomized control trial; RCT) of a commercially available, internet-delivered, theory-based, physical activity behavior change program has recently been completed. Findings suggest strong short-term outcomes for PA levels and central adiposity in overweight/obese adults but significant PA relapse at one-year. Improvements in central adiposity were maintained at one year. Evidence suggests that longer-term efficacy may be enhanced through: 1) greater internet interactivity and engaging content; and 2) a tapered post-intervention weaning period. Recruitment for an effectiveness trial implementing these evidence-based modifications to the internet-delivered PA intervention is currently underway, and measures will occur immediately post-intervention and at one year.