| YYIRTL1 | Yo-Yo Intermittent Recovery Test Level 1 |
| YYIRTL2 | Yo-Yo Intermittent Recovery Test Level 2 |
| HIR | High-Intensity Running |
| HSR | High-Speed Running |
| SPR | Sprinting |
| GPS | Global Positioning Systems |
| PARQ | Physical Activity Readiness Questionnaire |
| LOOCV | Leave-one-out cross-validation |
| RMSE | Root mean square error |
| kph | Kilometres per hour |
| RSA | Repeated Sprint Ability |
| VIR | Variance Inflation Factor |
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