{"title":"需要护理的老年人用前臂围度估算阑尾瘦质量公式的发展。","authors":"Daisuke Takagi, Masatoshi Kageyama","doi":"10.22540/JFSF-10-001","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>The use of forearm circumference (FC) in the estimation equation to predict appendicular lean mass (ALM) in older adults who require care remains unclear.</p><p><strong>Methods: </strong>This cross-sectional study targeted 132 participants aged ≥65 years requiring care. The ALM was measured with bioelectrical impedance analysis (BIA). Handgrip strength (HS) was measured with a digital hand dynamometer. FC was measured at the site of maximum swelling using a tape measure. Multiple regression analysis was conducted to develop an equation for estimating BIA-measured ALM using FC. Moreover, we investigated a systematic error by Bland-Altman analysis between BIA-measured ALM and ALM calculated by the estimation equation.</p><p><strong>Results: </strong>We developed the four estimation equations. The values of r, adjusted R<sup>2</sup>, and SEE in the representative model (FC + HS + age) were 0.86, 0.73, and 2.01 (kg), respectively (<i>p</i> < 0.05). In contrast, a systematic error was identified between the BIA-measured ALM and ALM calculated by the estimation equations by the Bland-Altman analysis.</p><p><strong>Conclusions: </strong>This study developed the formula using FC, which can predict ALM with less influence of edema, but it may over- or underestimate ALM in older adults requiring care.</p>","PeriodicalId":73754,"journal":{"name":"Journal of frailty, sarcopenia and falls","volume":"10 1","pages":"1-7"},"PeriodicalIF":0.0000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11872251/pdf/","citationCount":"0","resultStr":"{\"title\":\"Development of Estimate Formulas for Appendicular Lean Mass Using Forearm Circumference in Older Adults Requiring Care.\",\"authors\":\"Daisuke Takagi, Masatoshi Kageyama\",\"doi\":\"10.22540/JFSF-10-001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objectives: </strong>The use of forearm circumference (FC) in the estimation equation to predict appendicular lean mass (ALM) in older adults who require care remains unclear.</p><p><strong>Methods: </strong>This cross-sectional study targeted 132 participants aged ≥65 years requiring care. The ALM was measured with bioelectrical impedance analysis (BIA). Handgrip strength (HS) was measured with a digital hand dynamometer. FC was measured at the site of maximum swelling using a tape measure. Multiple regression analysis was conducted to develop an equation for estimating BIA-measured ALM using FC. Moreover, we investigated a systematic error by Bland-Altman analysis between BIA-measured ALM and ALM calculated by the estimation equation.</p><p><strong>Results: </strong>We developed the four estimation equations. The values of r, adjusted R<sup>2</sup>, and SEE in the representative model (FC + HS + age) were 0.86, 0.73, and 2.01 (kg), respectively (<i>p</i> < 0.05). In contrast, a systematic error was identified between the BIA-measured ALM and ALM calculated by the estimation equations by the Bland-Altman analysis.</p><p><strong>Conclusions: </strong>This study developed the formula using FC, which can predict ALM with less influence of edema, but it may over- or underestimate ALM in older adults requiring care.</p>\",\"PeriodicalId\":73754,\"journal\":{\"name\":\"Journal of frailty, sarcopenia and falls\",\"volume\":\"10 1\",\"pages\":\"1-7\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11872251/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of frailty, sarcopenia and falls\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.22540/JFSF-10-001\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of frailty, sarcopenia and falls","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22540/JFSF-10-001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Development of Estimate Formulas for Appendicular Lean Mass Using Forearm Circumference in Older Adults Requiring Care.
Objectives: The use of forearm circumference (FC) in the estimation equation to predict appendicular lean mass (ALM) in older adults who require care remains unclear.
Methods: This cross-sectional study targeted 132 participants aged ≥65 years requiring care. The ALM was measured with bioelectrical impedance analysis (BIA). Handgrip strength (HS) was measured with a digital hand dynamometer. FC was measured at the site of maximum swelling using a tape measure. Multiple regression analysis was conducted to develop an equation for estimating BIA-measured ALM using FC. Moreover, we investigated a systematic error by Bland-Altman analysis between BIA-measured ALM and ALM calculated by the estimation equation.
Results: We developed the four estimation equations. The values of r, adjusted R2, and SEE in the representative model (FC + HS + age) were 0.86, 0.73, and 2.01 (kg), respectively (p < 0.05). In contrast, a systematic error was identified between the BIA-measured ALM and ALM calculated by the estimation equations by the Bland-Altman analysis.
Conclusions: This study developed the formula using FC, which can predict ALM with less influence of edema, but it may over- or underestimate ALM in older adults requiring care.
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