通过握力t分数识别老年人的肌肉减少症。
Identification of dynapenia in older adults through the use of grip strength t-scores.
作者信息
Bohannon Richard W, Magasi Susan
机构信息
Physical Therapy Program, Department of Kinesiology, Neag School of Education, University of Connecticut, 358 Mansfield, U-2101, Storrs, Connecticut, 06269-2101, USA.
出版信息
Muscle Nerve. 2015 Jan;51(1):102-5. doi: 10.1002/mus.24264. Epub 2014 Nov 19.
INTRODUCTION
The aim of this study was to generate reference values and t-scores (1.0-2.5 standard deviations below average) for grip strength for healthy young adults and to examine the utility of t-scores from this group for the identification of dynapenia in older adults.
METHODS
Our investigation was a population-based, general community secondary analysis of cross-sectional grip strength data utilizing the NIH Toolbox Assessment norming sample. Participants consisted of community-dwelling adults, with age ranges of 20-40 years (n = 558) and 60-85 years (n = 390). The main outcome measure was grip strength using a Jamar plus dynamometer.
RESULTS
Maximum grip strengths were consistent over the 20-40-year age group [men 108.0 (SD 22.6) pounds, women 65.8 (SD 14.6) pounds]. Comparison of older group grip strengths to those of the younger reference group revealed (depending on age strata) that 46.2-87.1% of older men and 50.0-82.4% of older women could be designated as dynapenic on the basis of t-scores.
CONCLUSIONS
The use of reference value t-scores from younger adults is a promising method for determining dynapenia in older adults.
引言
本研究的目的是生成健康年轻成年人握力的参考值和t分数（比平均水平低1.0 - 2.5个标准差），并检验该组t分数在识别老年人肌肉减少症方面的效用。
方法
我们的调查是基于人群的，利用美国国立卫生研究院工具箱评估标准化样本对横断面握力数据进行一般社区二次分析。参与者包括社区居住的成年人，年龄范围为20 - 40岁（n = 558）和60 - 85岁（n = 390）。主要结局指标是使用Jamar plus测力计测量的握力。
结果
20 - 40岁年龄组的最大握力一致[男性为108.0（标准差22.6）磅，女性为65.8（标准差14.6）磅]。将老年组的握力与年轻参考组的握力进行比较发现（取决于年龄层），根据t分数，46.2 - 87.1%的老年男性和50.0 - 82.4%的老年女性可被认定为肌肉减少症患者。
结论
使用来自年轻成年人的参考值t分数是确定老年人肌肉减少症的一种有前景的方法。
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