异速调整的握力和椅子站立测试切点,以确定老年葡萄牙成年人肌肉减少症

Q4 Medicine
P. Abdalla, Lucimére Bohn, J. Mota, D. Machado
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引用次数: 1

摘要

绝对肌力或体重指数(BMI)对肌少症的鉴别是有用的。然而,由于力量和体型之间的非线性关系,这些值对于具有极端体型的老年人并不准确。目的是利用异速生长系数将握力(HGS)和30秒椅子站立测试(30秒CST)按体型归一化,确定识别老年人肌肉减少症的截止点。用对数线性模型对体型变量(体重、身高和体重指数)提出异速生长指数。用偏相关法检验异速正一化去除体型对肌力的影响。通过ROC曲线和考虑功能限制的约登指数(6分钟步行测试70%)建立低肌力的分界点。异速测量消除了体型对HGS和30-s CST表达的影响,允许在不考虑体型的情况下评估肌肉力量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Allometrically adjusted handgrip strength and chair stand test cut points to identify sarcopenia in older Portuguese adults
ABSTRACT Absolute muscle strength or adjusted by body mass index (BMI) are useful to identify sarcopenia. However, these values are not accurate for older adults with extreme body sizes because the nonlinear relationship between strength and body size. The purpose was to determine cut-off points for identify sarcopenia in older adults using allometric coefficients to normalise handgrip strength (HGS) and 30-sec chair stand test (30-s CST) by body size. Allometric exponents were proposed with log-linear models for body-size variables (body mass, height and BMI). The remotion of body-size effect on muscle strength with allometric normalisation was tested by partial correlation. Cut-off points for low muscle strength were established by ROC curve and Youden index considering functional limitation (six-minute walk test<400m). Allometric exponents provided for body-size variables range from -0.01 to 2.28 (HGS) and -0.27 to 0.21 (30-s CST). The effect of body size on muscle strength was removed with allometric normalisation (r<0.30). Cut-off points accuracy was always adequate (AUC≥0.78; p<0.001). In conclusion, cut-off points of HGS and 30-s CST allometrically normalised were proposed to identify sarcopenia in Portuguese older adults and allometry maintained adequate the accuracy (AUC>70%). Allometry removed influence of body size on the expression of HGS and 30-s CST and permits evaluate muscle strength regardless of body-size.
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来源期刊
CiteScore
1.50
自引率
0.00%
发文量
9
审稿时长
20 weeks
期刊介绍: The Brazilian Journal of Kinanthropometry and Human Performance is a journal of Physical Education, Kinesiology, Sport and related areas, whose focus is human movement, being reviewed by an international panel of peers, with emphasis on the measurement of the man in its morphological and functional aspects, as well as conditioning factors of physical performance. Given the multidisciplinary nature of the journal, these areas of study are approached in several contexts, with interactions with social, behavioral, health and environmental aspects. The journal publishes original articles as well as relevant Review/Update articles and Points of View.
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