Table 1 Summary of independent variables.
From: Training load responses modelling and model generalisation in elite sports
Independent variables | \({\text {X}_\text {i}}\) | Description | Aggregation |
|---|---|---|---|
Raw training load | \(X_1\) | Daily training load computed from \(TL_{ice}\), \(TL_{RT}\), \(TL_{aer}\), \(TL_{RS}\), \(TL_{act}\) (see Supplementary material Appendix 1) | Daily recorded |
Cumulative Training load | \(X_2\), \(X_3\) | Daily computed from \(X_1\) values | Impulse and serial cumulative responses |
Rate of Perceived Exertion (RPE) | \(X_4\), \(X_5\) | Borg category ratio (CR) 0–10 scale | Impulse and serial cumulative responses |
Averaged power | \(X_6\), \(X_7\) | On-ice sessions | Impulse and serial cumulative responses |
Maximal power | \(X_8\), \(X_9\) | On-ice sessions | Impulse and serial cumulative responses |
Relative intensity | \(X_{10}\), \(X_{11}\) | On-ice sessions (see Supplementary material Appendix 1, Eq. S1) | Impulse and serial cumulative responses |
Session duration | \(X_{12}\), \(X_{13}\) | All sessions, overall session duration | Impulse and serial cumulative responses |
Session density | \(X_{14}\), \(X_{15}\) | All sessions, effective work only | Impulse and serial cumulative responses |
Ice quality | \(X_{16}\) | Subjective information quoted on a Borg 0–10 CR scale | Recorded the day of performance |
Rest | \(X_{17}\) | Rest between two consecutive sessions (days) | Sum of rest days preceding the performance |
Past performance | \(X_{18}\) | Significantly correlated past \(\text {performance}_{t-k}\) with \(\text {performance}_t\) | Performance at \(\text {day}_{t-k}\) |
Athlete | \(X_{19}\) | Athlete’s id |
