Accuracy evaluation of bioelectrical impedance analysis in assessment of appendicular skeletal muscle mass in adults aged 18-42 years
10.3969/j.issn.1006-5725.2024.04.019
- VernacularTitle:生物电阻抗法测量18～42岁成人四肢骨骼肌质量的准确性评价
- Author:
Yiying ZHENG
1
;
Hong CHENG
;
Yuxian KUANG
;
Zhenxin MA
;
Weiye CHEN
;
Keyuan LU
;
Jie MI
;
Li LIU
Author Information
1. 广东药科大学公共卫生学院流行病与卫生统计学系 广州 510310
- Keywords:
bioelectrical impedance analysis;
dual-energy X-ray absorptiometry;
appendicular skeletal muscle mass;
low muscle mass
- From:
The Journal of Practical Medicine
2024;40(4):549-553
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the accuracy of bioelectrical impedance analysis(BIA)in measurement of appendicular skeletal muscle mass(ASM)of adults.Methods A total of 836 adults aged 18-42 years were recruited in Guangzhou using a convenient sampling method from April 2021 to September 2022.ASM was measured using BIA and Dual-energy X-ray absorptiometry(DXA).Using DXA as the standard method,the consistency between the BIA and DXA measurements was evaluated by intra-class correlation coefficients(ICCs)and Bland-Altman analysis in logarithmically transformed data,in order to evaluate the accuracy of BIA in ASM measurement.Receiver operating characteristic curve was plotted to evaluate the diagnostic value of BIA for screening low muscle mass.Results A total of 774 individuals were included for analysis finally.ICCs for ASM measured by BIA and DXA were 0.774 and 0.667 in males and females,respectively.Mean ratios(limits of Agreement)of ASM were 0.94(0.80-1.10)and 0.91(0.78-1.05)in males and females,respectively.Area under curve of BIA for screening low muscle mass were 0.91 and 0.94 in males and females,respectively.The optimal cut-off values of Z-score by BIA for males and females were-0.57 and-0.66,respectively.Sensitivity and specificity for males were 82.5%and 86.0%,while being 86.8%and 93.8%,for females.Conclusion BIA shows a moderate consistency with DXA for measuring ASM in adults.Furthermore,BIA yields a good diagnostic value in identifying low muscle mass in adults aged 18-42 years.
