Table 1

Predictors of Yo-YoIR1 running performance

VariablesStandardised coefficientPartial rp Valuer2rRating
AUModel 1Intercept0.310.56 (0.27;0.75)Large
HRex−0.57−0.57<0.001
Model 2Intercept0.440.66 (0.42;0.82)
ΔHRex−0.41−0.50<0.001Large
ΔLnSD10.380.50<0.01
BO0.280.53 (0.23;0.74)Large
Model 1Intercept
ΔHRex−0.53−0.53<0.01
  • Coefficient of determination (r2, stepwise multiple regression model) and associated correlation coefficient (r) illustrating the relationships between changes in Yo-Yo Intermittent Recovery Level 1 (Yo-YoIR1) and the different cardiovascular, autonomic and perceived measures for Australian (AU, n=51 observations) and Bolivian (BO, n=45 observations) players. None of the perceived measures were included in the final models.

  • Yo-YoIR1, Yo-Yo Intermittent Recovery Level 1