Table S4. Hierarchical linear regression models for composite performance score in the full sample.
Model Predictors added beyond base covariates Adjusted R2 ΔR2 Standardized β for myocardial index p value Maximum VIF
Base model Age, sex, discipline, training age, weekly load, body fat, skeletal muscle mass 0.286 - - < 0.001 1.92
Model 1 GLS 0.407 0.121 βGLS = -0.34 < 0.001 1.98
Model 2 GWE 0.389 0.103 βGWE = 0.31 < 0.001 1.94
Model 3 GLS + GWE 0.462 0.176 βGLS = -0.27; βGWE = 0.24 < 0.001; 0.002 2.36
Model 4 GLS + GWE + MPI 0.474 0.012 βMPI = -0.13 0.041 2.48
Model 5 GLS + GWE + MPI + GWW 0.481 0.007 βGWW = -0.10 0.083 2.61