Maintaining Physical Activity in Older Adult MCO Members

维持老年 MCO 会员的身体活动

• 批准号: 6936674
• 负责人: BRIAN C MARTINSON
• 金额: $ 49.7万
• 依托单位: HEALTHPARTNERS INSTITUTE
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-30 至 2008-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6936674
• 关键词: behavioral /social science research tag; body physical activity; clinical research; health behavior; human middle age (35-64); human old age (65+); longitudinal human study; managed care; social support network

DESCRIPTION (provided by applicant): The benefits of physical activity for adults are well established, but less than one-third of older adults in the U.S. have achieved recommended levels of physical activity despite widespread clinical recommendations to increase physical activity in recent years. Clinic-based approaches to increasing physical activity are expensive, difficult to implement in busy practice settings, and have limited reach. Moreover, evidence of the efficacy of such approaches is equivocal. A population-based approach may be a more effective and less costly strategy to increase levels of physical activity in older adults. Population studies of physical activity have demonstrated that each year, many sedentary older adults initiate physical activity, but a nearly equal number of those who were active become sedentary. Among older adults initiating physical activity, only half continue to be active 3 months later. We hypothesize that a population-based approach that emphasizes physical activity maintenance can substantially increase physical activity levels in a defined populations of older adults. This hypothesis is tested in a 24-month randomized trial evaluating an innovative, theory-based behavioral intervention to maintain physical activity in a random sample of 50-70 year old adults who have recently become at least moderately active. One thousand (1000) subjects will be randomized to one of two experimental groups: 1) a "usual care" control group, and 2) an interactive phone- and mail-based intervention program tailored to maintaining physical activity in older adults. The primary outcome measures are: 1) physical activity, assessed as kcals/wk expenditure; and 2) physical activity maintenance, assessed as follow-up kcals/wk expenditure relative to baseline. Careful measurement of the penetration of the intervention into a well characterized older adult population, and the costs of the intervention, will be assessed. Psychosocial and behavioral mediators of physical activity maintenance will also be examined. Study results will be relevant to policy makers, health promotion practitioners and health plans, and will provide practical information on the effectiveness, population penetration, and costs of an intervention designed to maximize population levels of physical activity among 9 older adults.

描述（由申请人提供）：成年人的体育锻炼益处已经建立了良好，但尽管广泛的临床建议近年来，但在美国，不到三分之一的老年人推荐了体育锻炼水平。基于诊所的增加体育锻炼的方法很昂贵，在繁忙的练习环境中难以实施，并且覆盖范围有限。此外，这种方法有效性的证据是模棱两可的。一种基于人群的方法可能是一种更有效，更低的策略，以提高老年人的体育活动水平。体育锻炼的人口研究表明，每年，许多久坐的老年人都会发起体育活动，但是积极的人数几乎相等。在开始进行体育锻炼的老年人中，只有一半继续活跃3个月后。我们假设一种强调体育活动维持的基于人群的方法可以大大提高老年人定义的人群的身体活动水平。在一项24个月的随机试验中测试了这一假设，该试验评估了一种创新的，基于理论的行为干预措施，以维持50-70岁成年人的随机样本中的身体活动，这些样本最近至少变得中度活跃。一千（1000）个受试者将被随机分为两个实验组之一：1）“通常的护理”对照组，2）量身定制的，用于维持老年人体育锻炼的互动性电话和邮件干预计划。主要结果指标是：1）体育锻炼，被评估为KCALS/WK支出； 2）维持体育锻炼，被视为随访KCAL/WK支出相对于基线。将评估干预措施中的渗透到具有良好特征的老年人群中，并评估干预成本。还将检查体育活动维持的心理和行为介体。研究结果将与决策者，健康促进从业人员和健康计划有关，并将提供有关旨在最大程度地提高9名老年人体育锻炼水平的干预措施的有效性，人口渗透和成本的实用信息。