Muscle strength and functional mobility in relation to lean body mass in free-living frail elderly women
Muscle strength and functional mobility in relation to lean body mass in free-living frail elderly women
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DOI：
10.1038/sj.ejcn.1600513
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发表时间：
1998-01-01
影响因子：
4.7
通讯作者：
Gray-Donald, K
中科院分区：
文献类型：
--
作者：
Payette, H;Hanusaik, N;Gray-Donald, K
目的：(1)描述体弱老年人的身体成分，(2)瘦体重与肌肉力量和功能能力的关系，(3)评估力量测量和功能能力指数的时间稳定性。设计：横断面研究。地点：社区居住。受试者：30名来自社区或门诊机构的虚弱老年妇女(81.5+/-7岁)。方法：采用多频生物电阻抗分析法测定并预测体脂和脱脂质量(FFM)。测量握力、二头肌和股四头肌力量、功能能力(计时为“UP&GO”)以及自我感觉的健康和功能状态。结果：平均身高1.52±0.04 m，体重60.4±10.7 kg，体质量指数26.0±4.8 kg/m(2)。自主性老年女性的FFM(34.1+/-4.6 kg)低于以前的报道，并与所有肌肉力量指标相关(Pearson‘s r=0.42-0.62p小于或等于0.02)，但与计时“上&下”或自我感觉健康和功能状态的表现无关。力量测量与自我感觉功能能力的不同子量表显著相关，与其他女性相比，FFM低的女性(n=19)和报告疼痛的女性(n=11)的力量测量显著降低。肌肉和功能测量的时间稳定性良好(ICC=0.80-0.90)。结论：在自由生活的虚弱老年女性中，尤其是在没有疼痛的情况下，肌肉力量与FFM密切相关。
Objectives: (1) To describe body composition of the frail elderly, (2) To relate lean body mass to muscle strength and functional ability, and (3) To assess temporal stability of strength measures and index of functional ability.Design: Cross-sectional study.Setting: Community-dwelling.Subjects: Thirty frail elderly women (81.5 +/- 7 y) recruited from residences or out-patient facilities.Methods: Total body fat and fat-free mass (FFM) were determined using multi-frequency bioelectrical impedance analysis and predicted from anthropometry. Handgrip strength, biceps and quadriceps strength, functional capacities (Timed "Up & Go") as well as self-perceived health and functional status were measured. Reliability was assessed using two separate observations made one week apart by the same examiner.Results: Mean height, weight and body mass index were 1.52 +/- 0.04 m, 60.4 +/- 10.7 kg and 26.0 +/- 4.8 kg/m(2) respectively. FFM (34.1 +/- 4.6 kg) was lower than previous reports for autonomous elderly females and associated with all measures of muscle strength (Pearson's r= 0.42-0.62 p less than or equal to 0.02), but not with performance on the Timed "Up & Go" or self-perceived health and functional status. Strength measures correlated significantly with different subscales of self-perceived functional capacities and were significantly lower among women with a low %FFM (n = 19) and those reporting pain (n = 11) as compared to other women. Excellent temporal stability for muscle and functional measures was observed (ICC = 0.80-0.90).Conclusions: Muscle strength was strongly related to FFM in free-living frail elderly women especially in the absence of pain.