DOES EXERCISE IMPROVE LOCOMOTION IN DISABLED ELDERS?

锻炼可以改善残疾老年人的运动能力吗？

基本信息

批准号：
2442291
负责人：
DAVID E KREBS
金额：
$ 9.28万
依托单位：
MASSACHUSETTS GENERAL HOSPITAL
依托单位国家：
美国
项目类别：
财政年份：
1994
资助国家：
美国
起止时间：
1994-09-10 至 2000-06-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/2442291
关键词：
exercise functional ability gait human old age (65+) human subject person with disability posture quality of life

项目摘要

DESCRIPTION (Adapted from the Applicant's Abstract): Little is known about the functional benefits of strengthening exercises in older persons. The proposed project will experimentally determine if strengthening exercises for community-dwelling, disabled older men and women result in improvements in gait and other locomotor activities. The experimental plan proposes to study 100 disabled elders randomly assigned to 6 months strengthening exercises or no-exercise control. The general hypothesis is that disabled older persons compensate for strength impairments by substituting potentially destabilizing, quantifiable body postures and movement strategies, and that these compensations are reduced following strength gains. Proposed Specific Aims are: 1) to determine the body segment postures, momentum and compensatory strategies in disabled older persons. It is hypothesized that disabled older persons use excessive upper body momentum to substitute for lower limb weakness during locomotor activities; 2) to assess whether functional abilities improve following a 6 month lower limb strengthening program. It is speculated that following 6 months of strengthening exercise, subjects move about more rapidly and with greater stability than subjects in the control group, and that change in strength correlates (r>.8) directly with change in locomotor velocity and torques, and inversely with use of segmental momentum transfer during locomotor activities; and 3) to ascertain whether improvement in functional ability results in a change in disability. It is proposed that changes in functional abilities identified under Aim #2 will, in turn, result in improvements in disability during real life role activities.

描述（改编自申请人的摘要）：鲜为人知关于增强型锻炼的功能好处人。拟议的项目将通过实验确定是否加强社区居住，残疾老年人和妇女会改善步态和其他运动活动。这实验计划建议随机研究100名残疾长老分配到6个月的加强练习或无运动控制。一般假设是残疾老年人补偿通过代替潜在稳定的力量损害，可量化的身体姿势和运动策略，这些力量增长后，补偿减少。提出的具体目的是：1）确定身体细分市场的姿势，动量和残疾老年人的补偿性策略。它是假设的残疾的老年人使用过多的上身动量在运动活动期间代替下肢弱点； 2）到评估功能能力在降低6个月后是否提高肢体加强程序。据推测，在6个月之后加强运动，受试者的移动更快，随着比对照组中的受试者更大，这种变化在强度相关（r> .8）中直接与运动速度变化和扭矩，并通过使用分段动量转移而成反在运动活动中； 3）确定是否有所改善功能能力导致残疾变化。有人提出 AIM＃2下确定的功能能力的变化反过来将在现实生活中的角色活动中导致残疾的改善。