TABLE 2.
Pre- and post-race resting cardiac function.
| Variable | Pre-race | Post-race | % Change | p |
| Resting heart rate (bpm) | 61.4 ± 8.6 | 80.7 ± 13.3 | 31.5% | 0.00 |
| 193 km (n = 12) | 60.4 ± 10.6 | 77.1 ± 13.8 | 27.6% | |
| 113 km (n = 3) | 67.3 ± 2.3 | 82.7 ± 3.2 | 22.8% | |
| 80 km (n = 7) | 62.5 ± 5.1 | 87.6 ± 15.1 | 40.1% | |
| 48 km (n = 2) | 53.8 ± 5.9 | 74.7 ± 5.7 | 38.7% | |
| Cardiac output (L⋅min–1) | 4.1 ± 0.82 | 5.3 ± 1.3 | 27.5% | 0.00 |
| 193 km (n = 12) | 4.4 ± 0.57 | 5.2 ± 1.4 | 17.2% | |
| 113 km (n = 3) | 3.4 ± 1.3 | 4.8 ± 0.19 | 42.2% | |
| 80 km (n = 7) | 4.2 ± 0.45 | 5.7 ± 1.5 | 34.8% | |
| 48 km (n = 2) | 3.0 ± 1.4 | 4.7 ± 0.24 | 58.1% | |
| Stroke volume (mL⋅beat−1) | 68.1 ± 15.3 | 64.8 ± 7.5 | −4.8% | 0.28 |
| 193 km (n = 12) | 74.6 ± 12.1 | 66.9 ± 8.3 | −10.3% | |
| 113 km (n = 3) | 50.2 ± 19.6 | 57.9 ± 1.5 | 15.4% | |
| 80 km (n = 7) | 67.7 ± 5.5 | 64.5 ± 6.6 | −4.7% | |
| 48 km (n = 2) | 57.1 ± 33.1 | 63.3 ± 8.1 | 10.9% | |
| Cardiac index (L⋅min–1⋅m–2) | 2.3 ± 0.52 | 2.8 ± 0.64 | 22.1% | 0.00 |
| 193 km (n = 12) | 2.4 ± 0.34 | 2.6 ± 0.46 | 7.2% | |
| 113 km (n = 3) | 1.87 ± 0.79 | 2.64 ± 0.25 | 41.3% | |
| 80 km (n = 7) | 2.5 ± 0.35 | 3.3 ± 0.84 | 34.1% | |
| 48 km (n = 2) | 1.5 ± 0.62 | 2.34 ± 0.03 | 60.8% |
Values displayed as means (±SD).