THE RELATIONSHIP BETWEEN MUSCLE MASS AND MUSCLE STRENGTH IN THE ELDERLY
THE RELATIONSHIP BETWEEN MUSCLE MASS AND MUSCLE STRENGTH IN THE ELDERLY
复制标题
DOI：
10.1111/j.1532-5415.1991.tb03592.x
复制
发表时间：
1991-06-01
影响因子：
6.3
通讯作者：
MOORADIAN, AD
中科院分区：
文献类型：
--
作者：
REED, RL;PEARLMUTTER, L;MOORADIAN, AD
为了确定肌肉质量在多大程度上预测老年人的肌肉力量，拟人估计肌肉面积和阻抗测量的肌肉质量和峰值等长肌力，获得了一个相对健康的老年人口超过65岁（平均年龄= 71.7; n = 218）。 上臂肌面积与上臂力量呈显著正相关（r = 0.68，P < 0.0001），而大腿肌面积与大腿力量的相关性较低（r = 0.29，P < 0.0001）。 这些肌肉面积计算还包括骨骼面积。 通过生物电阻抗计算的瘦体重与通过所有肌群相加测量的累积肌肉力量高度相关（r = 0.79，P < 0.0001）。 为了确定年龄是否会改变每单位肌肉质量的肌肉强度，纳入了额外的中年受试者，并比较了三组，中年（55-64）（n = 78），中老年（65-74）（n = 161）和老年（75+）（n = 57）。 一个显着的年龄相关的趋势，每单位瘦体重的肌肉力量下降。 它的结论是，虽然肌肉质量与肌肉力量在一个健康的老年人群，使用简单的年龄无关的临床测量体重不应该被用来预测肌肉力量。
To determine the extent that muscle mass is predictive of muscle strength in the elderly, anthropomorphic estimates of muscle area and impedance measurements of muscle mass and peak isometric muscle strength were obtained in a relatively healthy older population over 65 years of age (mean age = 71.7; n = 218). Midarm muscle area correlated strongly with upper arm strength (r = 0.68, P < 0.0001) while midthigh muscle area had a much lower correlation with thigh muscle strength (r = 0.29, P < 0.0001). These muscle area calculations also include bone area. Lean body mass calculated by bioelectric impedance correlated highly with cumulative muscle strength measured by summing all muscle groups (r = 0.79, P < 0.0001). To determine whether aging alters muscle strength per unit of muscle mass, additional middle-aged subjects were included, and three groups, middle-aged (55-64) (n = 78), young-old (65-74) (n = 161), and old-old (75+) (n = 57), were compared. A significant age-related trend of decreasing muscle strength per unit of lean body mass was noted. It is concluded that although muscle mass correlates with muscle strength in a healthy older population, use of simple age-independent clinical measurements of body mass should not be used to predict muscle strength.