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Table 3 Multiple hierarchical regression analyses of control variables, direct predictor variables, and main study outcome variables

From: Modelling perception-action coupling in the phenomenological experience of “hitting the wall” during long-distance running with exercise-induced muscle damage in highly trained runners

  Leucocytes
➭ Cortisol
Neutrophils
➭ Cortisol
Cortisol
➭ Performance fatigability
Leucocytes
➭ Perceived physical strain
Neutrophils
➭ Perceived physical strain
Perceived physical strain
➭ Valence
Valence ➭
Action crisis
Action crisis
➭ Performance fatigability
Predictor R2 β R2 β R2 β R2 β R2 β R2 β ∆R2 β R2 β
Step 1 .056   .056   .002   .066   .066   .022   .081   .002  
Age   − .130   − .130   .002   − .255   − .255   .035   − .183   .002
Weight   .201   .201   .042   .036   .036   − .144   .211   .042
Step 2 .196   .196   .012   .011   .011   .005   .094   .012  
Weekly mileage   .172   .172   .150   .058   .058   .029   −.424   .150
Other training   .538   .538   .124   − .063   − .063   − .051   .161   .124
Step 3 .004   .004   .047   .220   .220   .148   .015   .047  
VO2peak   − .069   − .069   − .182   .463   .463   − .175   .106   − .182
Economy   .067   .067   .244   − .514   − .514   .438   − .140   .244
Step 4 .372**   .395**   .291*   .307**   .276**   .528**   .210*   .461**  
Direct predictor   .708**   .726**   .626*   .643**   .608**   − .866**   − .504*   .755**
  1. **Significant at the 0.01 level (2-tailed). *Significant at the 0.05 level (2-tailed)