Table 1.
Athlete characteristics.
| Variable | Runners | Swimmers | P-value |
|---|---|---|---|
| Age (year) | 23 (2) | 22 (3) | 0.22 |
| Sex: male, female (no) | 13, 3 | 13, 3 | – |
| Race: black, white (no) | 5, 11 | 5, 11 | – |
| Height (m) | 1.86 (0.13) | 1.80 (0.07) | 0.12 |
| Mass (kg) | 71.3 (9.3) | 74.0 (9.0) | 0.41 |
| Body mass index (kg⋅m-2) | 22.6 (2.0) | 22.9 (1.7) | 0.60 |
| Body surface area (m2) | 1.87 (0.16) | 1.92 (0.15) | 0.41 |
| Supine systolic BP (mmHg) | 95 (9) | 100 (10) | 0.14 |
| Supine diastolic BP (mmHg) | 54 (8) | 55 (7) | 0.76 |
| Supine heart rate (bpm) | 49 (6) | 56 (5) | 0.001 |
| Training history | |||
| Competitive training duration (year) | 8 (3) | 12 (4) | 0.02 |
| Average training volume (h⋅wk-1) | 17 (5) | 23 (8) | 0.01 |
| Sport | |||
| Run: sprint/power | 10 | 0 | – |
| Run: distance | 6 | 0 | – |
| Swim: sprint | 0 | 6 | – |
| Swim: middle distance/distance | 0 | 10 | – |
Data are mean (SD). BP, blood pressure. Bolded values in P-value column indicate significant between-group differences.