{"title":"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。","authors":"Marjolein Visser, Minoru Yamada, Hidenori Arai","doi":"10.1007/s41999-025-01263-3","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>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.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>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.</p><p><strong>Conclusion: </strong>Regardless of the muscle mass-body size ratio being used, cut-off values for low muscle mass need to be BMI-specific.</p>","PeriodicalId":49287,"journal":{"name":"European Geriatric Medicine","volume":" ","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Muscle mass adjustment for body size: is using a ratio doing the job? A cross-sectional study in two samples of older adults.\",\"authors\":\"Marjolein Visser, Minoru Yamada, Hidenori Arai\",\"doi\":\"10.1007/s41999-025-01263-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>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.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>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.</p><p><strong>Conclusion: </strong>Regardless of the muscle mass-body size ratio being used, cut-off values for low muscle mass need to be BMI-specific.</p>\",\"PeriodicalId\":49287,\"journal\":{\"name\":\"European Geriatric Medicine\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Geriatric Medicine\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1007/s41999-025-01263-3\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GERIATRICS & GERONTOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Geriatric Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s41999-025-01263-3","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GERIATRICS & GERONTOLOGY","Score":null,"Total":0}
Muscle mass adjustment for body size: is using a ratio doing the job? A cross-sectional study in two samples of older adults.
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.
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.
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