Table 3: Multivariable stepwise regression models for back muscular endurance displaying significant independent variables.

LabelCoefficientSE Partial Model

Model 1: body mass index
 Intercept173.4419.21<0.001
 Body mass index (kg/m2)−2.920.68<0.0010.190.19

Model 2: body fat %
 Intercept118.497.48<0.001
 Body fat (%)−1.220.32<0.0010.160.16

Model 3: fat mass and fat-free mass
 Intercept113.085.95<0.001
 Fat mass (kg)−1.050.26<0.0010.170.17

SE: standard error.