HIGHER AND LOWER MUSCLE ECHO INTENSITY IN ELDERLY INDIVIDUALS IS DISTINGUISHED BY MUSCLE SIZE, PHYSICAL PERFORMANCE AND DAILY PHYSICAL ACTIVITY
HIGHER AND LOWER MUSCLE ECHO INTENSITY IN ELDERLY INDIVIDUALS IS DISTINGUISHED BY MUSCLE SIZE, PHYSICAL PERFORMANCE AND DAILY PHYSICAL ACTIVITY
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DOI：
10.1016/j.ultrasmedbio.2019.05.029
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发表时间：
2019-09-01
影响因子：
2.9
通讯作者：
Akima, Hiroshi
中科院分区：
文献类型：
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作者：
Yoshiko, Akito;Natsume, Yukie;Akima, Hiroshi
本研究的目的是确定老年人身体成分、身体功能和日常体力活动参数中肌肉回声强度（EI）的差异因素。共对209名男性和女性（73.7 +/- 2.8岁）进行了评价。在超声检查的轴向大腿肌肉图像上测量EI。参与者被分为低，中和高EI组。我们测量了骨骼肌质量指数（SMI）和身体功能。高EI组的SMI显著低于低EI组，5 m步行时间和6 min步行距离显著低于低EI组，中等强度活动时间显著低于中EI组。判别分析的结果，老年人被归类为EI组的SMI，日常活动和身体功能。数据表明，形态和功能参数和日常活动水平有助于区分较高和较低的肌肉EI。(C)2019年世界医学和生物学超声联合会。All rights reserved.
This study was performed to identify factors that discriminate muscle echo intensity (EI) among parameters of body composition, physical function and daily physical activity in elderly individuals. A total of 209 men and women (73.7 +/- 2.8 y) were evaluated. EI was measured on ultrasonographic axial thigh muscle images. The participants were categorized into the low, mid and high EI groups. We measured the skeletal muscle mass index (SMI) and physical functions. The high EI group exhibited a significantly lower SMI, slower 5-m walking time and shorter 6-min walking distance than the low EI group and had a shorter moderate-intensity activity time than the mid EI group. As a result of the discriminant analysis, elderly individuals were categorized into EI groups by SMI, daily activity and physical function. The data indicate that morphologic and functional parameters and the daily activity level help to discriminate higher and lower muscle EI. (C) 2019 World Federation for Ultrasound in Medicine & Biology. All rights reserved.