Table 1. Physical characteristics and sports training background of the runners (=9).
| Variables |
Mean (±SD) |
| Age (year) |
23.2 (6.4) |
| Height (m) |
1.70 (.03) |
| Weight (kg) |
58.9 (4.6) |
| FVC (l) |
4.2 (.4) |
| FEV1 (l) |
3.8 (.3) |
| FEV1 / FVC (%) |
90.9 (6.3) |
| 12-s MVV (l·min-1) |
184.6 (24.4) |
| VO2 max (ml·kg-1·min-1) |
65.0 (4.7) |
| VE max (l·min-1) |
145.2 (9.6) |
| HR max (beat·min-1) |
187.4 (9.7) |
| Experience of endurance running (years) |
6.9 (2.8) |
| Training frequency (sessions·week-1) |
4.4 (1.7) |
| Training duration (hrs·session-1) |
2.3 (.7) |
| Training distance (km·week-1) |
57.8 (17.2) |
MVV, maximum voluntary ventilation measured in 12 s; VO, V and HR, maximum oxygen uptake, minute ventilation and heart rate, respectively, recorded in maximum graded treadmill test.FVC, forced vital capacity; FEV, forced expiratory volume in 1 s; 12-s