Activity, Gait, and Efficacy (AGE II): Functional Limitations and Quality of Life

描述(由申请人提供)：这项申请建议测试DVD递送的基于家庭的体力活动干预的有效性，目标是灵活性、调节和平衡(FTB)活动，与注意力控制条件相比，以减少功能限制并提高老年人的功能表现和生活质量(QOL)。据推测，参加这个为期6个月的FTB计划将改善功能健康和平衡，减少功能限制，并在试验结束和6个月随访时提高总体生活质量。另一个目标是纵向测试体育活动对功能限制和生活质量的影响。最终目标是将REAIM(到达、有效性、采用、实施和维护)原则应用到拟议研究的设计和评估中，以确定通过DVD媒体提供体育活动对公众健康的潜在影响。拟议申请的目的和目标与国家老龄研究所改善美国老年人健康和生活质量的战略一致。此外，我们的研究结果的覆盖面和概括性可能是相当大的。我们建议招募并随机分配来自伊利诺伊州中部的250名年长(65岁以上)低活动成年人，将其分配到FTB条件下，通过DVD在家中提供，或在注意力控制条件下接受健康老化的DVD和相等的接触时间。在为期6个月的跟踪评估之后，将为控制条件提供FTB计划。主要结果是功能表现和功能限制，次要结果是自我效能、体力活动、健康状况和生活质量。所有测量的数据将在基线、6个月和12个月时进行评估。所有假设都将在协方差建模框架内使用潜在增长曲线建模进行检验。 公共卫生相关性：这一应用程序的公共卫生相关性相当大，因为它针对的是主要久坐不动的人群，并遭受前所未有的功能限制，这些因素对生活质量和独立生活具有重大影响。通过采用REAIM方法来设计和实施，我们将能够有效地改善广泛类别的老年人的身体活动行为，而几乎没有排除标准来研究入门研究，增强了研究结果的覆盖面和普适性。

DESCRIPTION (provided by applicant): This application proposes to test the effectiveness of a DVD-delivered home-based physical activity intervention targeting flexibility, toning, and balance (FTB) activities when compared with an attention control condition to reduce functional limitations and enhance functional performance and quality of life (QOL) in older adults. It is hypothesized that participation in this 6-month FTB program will improve functional fitness and balance, reduce functional limitations, and improve overall quality of life at the end of the trial and at 6-month follow-up. A further aim is to longitudinally test the mediators of physical activity effects on functional limitations and quality of life. A final aim is to implement REAIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) principles into the design and evaluation of the proposed study in order to determine the potential public health impact of delivering physical activity via DVD media. The aims and objectives of the proposed application are consistent with the National Institute on Aging's strategies for improving the health and quality of life of older Americans. Additionally, our reach and generalizability of findings are likely to be considerable. We propose to recruit and randomly assign 250 older (65+ years) low-active adults from across central Illinois to the FTB condition to be delivered in the home by DVD or an attention control condition receiving a healthy aging DVD and equivalent contact time. The control condition will be offered the FTB program following the 6- month follow-up assessments. Primary outcome measures are functional performance and functional limitations with secondary outcomes being self-efficacy, physical activity, health status, and quality of life. All measured will be assessed at baseline, six and twelve months. All hypotheses will be tested using latent growth curve modeling within a covariance modeling framework. PUBLIC HEALTH RELEVANCE: The public health relevance of this application is considerable as it targets an element of the population that is largely sedentary and suffers from unprecedented levels of functional limitations, factors that have significant implications for compromised quality of life and independent living. By adopting a REAIM approach to the design and implementation we will be able to effectively improve the physical activity behavior of a broad class of older adults with few exclusionary criteria to study entry enhancing reach and generalizability of findings.