The relationship of strength to function in the older adult.
The relationship of strength to function in the older adult.
复制标题
老年人力量与功能的关系。
DOI：
10.1093/gerona/50a.special_issue.55
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
H. H. Host
中科院分区：
文献类型：
--
作者：
Marybeth Brown;D. Sinacore;H. H. Host
下肢力量的降低与步态速度、平衡、爬楼梯能力和从坐姿起身的降低有关。下肢力量和完成选定的功能活动的能力的关系进行了检查，在16个健康，但体弱的老年人，年龄范围从75至88岁（平均= 80.9岁）。获得了每个受试者的以下测量结果：实验室和自由行走条件下的首选步态速度，5次定时椅子站立，以及完成障碍课程的时间。使用手持式测力计测量髋伸肌、髋外展肌、膝伸肌、跖屈肌和背屈肌群的力量。完成功能活动的时间和每个强度变量之间的关系使用皮尔逊积矩相关性来确定。此外，还检查了与各种强度测量组合（例如，髋关节和膝关节伸展）。弱，非显着的髋关节，膝关节和踝关节的力量/功能活动的关系，发现所有的变量检查。当髋关节伸展、膝关节伸展和踝关节跖屈强度值结合起来并标准化为体重时，发现14”椅子站立的强度与功能活动之间存在显著的关系（r = 0.636，p <0.01）。当35名年龄在60-72岁之间的成年人的股四头肌力量和步态速度的值与75-88奥尔兹的人进行比较时，出现了显著差异。在年轻成人中观察到膝关节伸展力和步态速度之间的关系更显著（r = .528 vs r = .353）。（250字处删节）
Reduced lower extremity strength has been associated with reduction in gait speed, balance, stair-climbing ability, and getting up from a seated position. The relationship of lower extremity strength and the ability to accomplish selected functional activities was examined in 16 healthy but frail older adults ranging in age from 75 to 88 years (mean = 80.9 years). The following measures were obtained for each subject: preferred gait speed under laboratory and free walking conditions, 5 timed chair stand-ups, and time to complete an obstacle course. Strength measures of the hip extensors, hip abductors, knee extensors, planter flexors, and dorsiflexor muscle groups were obtained using a hand-held dynamometer. The relationship between the time to complete the functional activities and each of the strength variables was determined using Pearson product moment correlations. In addition, performance was examined in relation to various combinations of strength measures (e.g., hip and knee extension). Weak, nonsignificant hip, knee and ankle strength/functional activity relationships were found for all of the variables examined. When hip extension, knee extension, and ankle plantar flexion strength values were combined and normalized to body weight, a significant strength-to-functional activity relationship was found for 14" chair stand-ups (r = .636, p < .01). When values for quadriceps strength and gait speed for 35 adults ranging in age from 60-72 years were compared to those for 75-88 year olds, marked differences emerged. A more significant relationship between knee extension force and gait speed was observed for the younger adults (r = .528 vs r = .353).(ABSTRACT TRUNCATED AT 250 WORDS)