ULTRASOUND-DERIVED FOREARM MUSCLE THICKNESS IS A POWERFUL PREDICTOR FOR ESTIMATING DXA-DERIVED APPENDICULAR LEAN MASS IN JAPANESE OLDER ADULTS
ULTRASOUND-DERIVED FOREARM MUSCLE THICKNESS IS A POWERFUL PREDICTOR FOR ESTIMATING DXA-DERIVED APPENDICULAR LEAN MASS IN JAPANESE OLDER ADULTS
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DOI：
10.1016/j.ultrasmedbio.2016.05.008
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发表时间：
2016-09-01
影响因子：
2.9
通讯作者：
Akamine, Takuya
中科院分区：
文献类型：
--
作者：
Abe, Takashi;Fujita, Eiji;Akamine, Takuya
为了验证已发表的公式的正确性，用超声测量了158名50-79岁的日本老年人(男72人，女86人)前臂前臂肌肉厚度(MT-尺骨)。用文献中发表的两个公式(无[公式1]和有[公式2])从尺骨MT估算附件瘦软组织质量(ALM)。采用双能X线吸收法(DXA)测量阑尾瘦质量，并以此为参考标准。在两个方程中，DXA计算的ALM与超声估计的ALM有很强的相关性(r=0.882和r=0.944)。方程(1)的总误差为2.60公斤，方程(2)的总误差为1.38公斤。Bland-Altman图显示，DXA来源的ALM和超声估计的ALM之间没有系统性偏差；然而，与DXA来源的ALM相比，公式(1)高估了ALM。我们的结果表明，包括身高的超声MT-尺骨方程对于估计日本成年人的ALM是合适的和有用的。(C)2016年世界医学和生物学超声联合会。
To test the validity of published equations, anterior forearm muscle thickness (MT-ulna) of 158 Japanese older adults (72 men and 86 women) aged 50-79 y was measured with ultrasound. Appendicular lean soft tissue mass (aLM) was estimated from MT-ulna using two equations (body height without [eqn 1] and with [eqn 2]) previously published in the literature. Appendicular lean mass was measured using dual-energy X-ray absorption (DXA), and this method served as the reference criterion. There was a strong correlation between DXA-derived and ultrasound-estimated aLM in both equations (r = 0.882 and r = 0.944). Total error was 2.60 kg for eqn (1) and 1.38 kg for eqn (2). A Bland-Altman plot revealed that there was no systematic bias between DXA-derived and ultrasound-estimated aLM; however, eqn (1) overestimated aLM compared with DXA-derived aLM. Our results suggest that an ultrasound MT-ulna equation that includes body height is appropriate and useful for estimating aLM in Japanese adults. (C) 2016 World Federation for Ultrasound in Medicine & Biology.