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

Label Coefficient SE Partial Model Model 1: body mass index            Intercept 173.44 19.21 <0.001      Body mass index (kg/m2) −2.92 0.68 <0.001 0.19 0.19 Model 2: body fat %            Intercept 118.49 7.48 <0.001      Body fat (%) −1.22 0.32 <0.001 0.16 0.16 Model 3: fat mass and fat-free mass            Intercept 113.08 5.95 <0.001      Fat mass (kg) −1.05 0.26 <0.001 0.17 0.17

SE: standard error.