Examination of the Consistency of Total Body Muscle Mass and Trunk Muscle Mass of Healthy Young Adults Measured by Home and Professional Body Composition Analyzers

Abstract

[Purpose] To examine the consistency of whole-body muscle mass and trunk muscle mass measured by home and professional body composition analyzers. [Participants and Methods] The total body muscle mass and trunk muscle mass of 38 young adults were measured using home and professional body composition analyzers. Agreement between the two devices’ measurements was investigated using the intraclass correlation coefficient and Bland-Altman analysis. [Results] The intraclass correlation coefficients of total body muscle mass and trunk muscle mass were 0.995 and 0.963, respectively, indicating very high agreement, and there were no fixed or proportional errors. [Conclusion] As no fixed or proportional errors were found for either total body muscle mass or trunk muscle mass, and a high degree of agreement was observed, we consider it possible to use a home body composition analyzer as a substitute for a professional body composition analyzer.