Exercise intensity in percentage and absolute time (h/min) of total race time
| Mean | SD | |
|---|---|---|
| HR, Heart rate. | ||
| HRaverage (beats/min) | 126 | 7 |
| HRaverage/HRmax (whole race) | 0.68 | 3.5 |
| HRaverage/HRmax (first 6 h) | 0.86 | 3.4 |
| HRaverage/HRmax (last 6 h) | 0.66 | 3.5 |
| HR decline from start to finish (%) | 23 | 3.5 |
| HRre (<70% HRmax) | 53% (14 h 32 min) | 13% (3 h 34 min) |
| HRma (70–80% HRmax) | 25% (6 h 51 min) | 8% (2 h 12 min) |
| HRia (80–90% HRmax) | 19% (5 h 13 min) | 6% (1 h 39 min) |
| HRhi (>90% HRmax) | 3% (49 min) | 1% (16 min) |