Treadmill Validation Of The Health ABC LDCW

跑步机健康验证 ABC LDCW

• 批准号: 6668186
• 负责人: ELEANOR Marie SIMONSICK
• 金额: --
• 依托单位: NATIONAL INSTITUTE ON AGING
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/6668186
• 关键词: aerobic exercise; aging; clinical research; evaluation /testing; human old age (65+); human subject; physical fitness

This project aims to: (1) determine the relationship between performance on a standardized max treadmill test and performance on the 400m component of the LDCW, including variation by fitness level; (2) obtain an estimate of VO2max from time to complete 400m, among other parameters (e.g., ending HR, weight, sex, age); (3) determine the need to increase test ceiling; (4) obtain additional data on the relationship between 20m walking speed, 2-min distance, and 400m time; and (5) evaluate the advantages of the LDCW over treadmill-based tests for measuring exercise tolerance in older adults. Subjects consist men and women, 60 years or older participating in the BLSA who performed a maximal treadmill-walk test. Subjects were administered the Health ABC LDCW as part of their regular visit for the BLSA, the day after treadmill testing. The primary outcomes are to provide: (1) a validated alternative to max treadmill-based tests of exercise tolerance that is safe and acceptable for use in longitudinal population-based studies of older adults and (2) equations for estimating VO2max from time to walk 400m applicable to older adults. We anticipate that validation of a low cost and safe alternative to treadmill testing will promote more widespread inclusion of exercise tolerance testing in studies of older adults and thereby facilitate increased understanding of the disabling process. In addition, the LDCW has the potential for use in clinical settings as an indicator of preclinical functional decline and for screening to identify those most in need of early intervention. The protocol received IRB approval in April 1999 and testing was initiated in August 1999. Data collection was completed in July 2000 with 107 subjects with valid treadmill results enrolled. A poster was prepared using data on 67 subjects and presented to the Board of Scientific Counselors in May 2000. A poster using the final sample was presented at the American College of Sports Medicine annual meeting, June 2001. A manuscript summarizing the findings is in progress.

该项目的目的是：（1）确定标准化最大跑步机测试的性能与LDCW 400m组件上的性能之间的关系，包括适应水平的变化； （2）从时间到完成400m（例如结束人力资源，体重，性别，年龄）中，获得VO2MAX的估计值； （3）确定需要增加测试天花板的需求； （4）获得有关20m步行速度，2分钟距离和400m时间之间关系的其他数据； （5）评估LDCW比基于跑步机的测试的优势，用于测量老年人的运动耐受性。受试者组成男性和女性，参加了60岁或60岁以上的人参加了进行最大跑步机测试的BLSA。在跑步机测试后的第二天，对受试者进行了卫生ABC LDCW的管理。主要结果是提供：（1）一种基于最大跑步机的运动耐受性测试的验证替代方法，可安全且可接受，可用于基于纵向人群的老年人研究，以及（2）估算VO2max从时间到步行400m的老年人的方程式。我们预计，验证低成本和安全替代跑步机测试将促进更广泛的运动耐受性测试在老年人的研究中，从而有助于增加对残疾过程的了解。此外，LDCW有可能在临床环境中使用，作为临床前功能下降的指标，并筛选确定最需要早期干预的人。该协议于1999年4月获得IRB批准，并于1999年8月开始了测试。数据收集于2000年7月完成，有107名受试者招募了有效的跑步机结果。使用有关67名受试者的数据准备了一张海报，并于2000年5月提交给科学顾问委员会。在2001年6月的美国运动医学学院年会上，使用最终样本的海报介绍了。