Muscle mass adjustment for body size: is using a ratio doing the job? A cross-sectional study in two samples of older adults.

IF 3.6 3区医学 Q2 GERIATRICS & GERONTOLOGY

European Geriatric Medicine Pub Date : 2025-07-08 DOI:10.1007/s41999-025-01263-3

Marjolein Visser, Minoru Yamada, Hidenori Arai

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引用次数: 0

Abstract

Purpose: The aim of this cross-sectional study was to investigate the prevalence of low muscle mass using different ratios, across categories of BMI in older adults.

Methods: Muscle mass estimates obtained by DXA, CT, and BIA from two samples of older adults were used (the Health, Aging, and Body composition study, USA and the MUSCLE study, Japan). For each muscle mass estimate, three ratios were calculated: muscle mass divided by body height squared, muscle mass divided by body weight, and muscle mass divided by body mass index. The prevalence of low muscle mass (ratio < 20th percentile of the sample) was determined across BMI categories.

Results: For all three ratios, the prevalence of low muscle mass was dependent on BMI. These findings were consistent for the different body composition methods, men and women, and for the two data samples.

Conclusion: Regardless of the muscle mass-body size ratio being used, cut-off values for low muscle mass need to be BMI-specific.

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根据体型调整肌肉质量：使用比例是否有效？在两个老年人样本中进行的横断面研究。

目的：本横断面研究的目的是调查不同比例、不同BMI类别的老年人低肌肉质量的患病率。方法：使用来自两个老年人样本的DXA、CT和BIA估计的肌肉质量（美国的健康、衰老和身体成分研究和日本的肌肉研究）。对于每个肌肉质量估计值，计算三个比率：肌肉质量除以身高的平方，肌肉质量除以体重，肌肉质量除以体重指数。结果：对于所有三种比例，低肌肉质量的患病率都依赖于BMI。这些发现对于不同的身体组成方法，男性和女性，以及两个数据样本都是一致的。结论：无论使用何种肌肉质量-体尺寸比，低肌肉质量的临界值需要与bmi相匹配。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Geriatric Medicine GERIATRICS & GERONTOLOGY-

CiteScore

6.70

自引率

2.60%

发文量

114

审稿时长

6-12 weeks

期刊介绍： European Geriatric Medicine is the official journal of the European Geriatric Medicine Society (EUGMS). Launched in 2010, this journal aims to publish the highest quality material, both scientific and clinical, on all aspects of Geriatric Medicine. The EUGMS is interested in the promotion of Geriatric Medicine in any setting (acute or subacute care, rehabilitation, nursing homes, primary care, fall clinics, ambulatory assessment, dementia clinics..), and also in functionality in old age, comprehensive geriatric assessment, geriatric syndromes, geriatric education, old age psychiatry, models of geriatric care in health services, and quality assurance.