Table 6. Canonical correlation analysis summary of the relationship between recovery indicators and in-match rest HRV- and HRR-related variables of badminton players.
| Canonical correlation (Rc): 0.692; Chi²(81) = 88.85; p = 0.258 | 
|  | Left set | Right set | 
| Number of variables | 9 | 9 | 
| Variance extracted | 100% | 100.00% | 
| Total redundancy | 26.91% | 47.27% | 
| Variables 1 | Sleep Duration | HRR Rest | 
| 2 | Sleep Quality | Ln-RMSSD | 
| 3 | Shade of Urine | Peak VLF (Hz) | 
| 4 | STEMS Anger | LF Power (%) | 
| 5 | STEMS Confusion | Peak LF (Hz) | 
| 6 | STEMS Energy index | Ln-HFnu Power | 
| 7 | STEMS Tension | Peak LF (Hz) | 
| 8 | STEMS Vigour | VLF Power (%) | 
| 9 | Muscle Soreness | Ln-LFnu/Ln-HFnu |