Relationship between 10 repetition maximum for chest press, leg press, and muscle mass measured using bioelectrical impedance analysis in healthy young adults.

Abstract

[Purpose] This study aimed to examine the relationship between bioelectrical impedance analysis measurements and 10 repetition maximum for chest press and leg press, and to develop a regression model to determine if bioelectrical impedance analysis can predict 10 repetition maximum in healthy young adults. [Participants and Methods] Ninety-four healthy adults participated in the study. Correlations between 10 repetition maximum and bioelectrical impedance analysis measurements were calculated, and simple linear regression was performed using bioelectrical impedance analysis measurements as independent variables to develop 10 repetition maximum prediction models. [Results] Significant correlations were found between 10 repetition maximum and bioelectrical impedance analysis measurements. The regression models for 10 repetition maximum for chest press based on upper limb muscle mass, skeletal muscle mass, and skeletal muscle mass index were Y=16.40X-13.27, Y=3.81X-36.78, and Y=20.51X-81.27, respectively. The regression models for 10 repetition maximum for leg press based on lower limb muscle mass, skeletal muscle mass, and skeletal muscle mass index were Y=12.60X-3.21, Y=8.09X-24.39, and Y=43.68X-119.60, respectively. [Conclusion] These findings may contribute to developing a safe and efficient method for measuring 10 repetition maximum, which can be useful in resistance training prescriptions.