Player anthropometry, levels of exertion (heart rate and levels of perceived exertion) and spirometry
| Characteristics | All (n=42) | NAOG (n=30) | AOG (n=12) | |
| Mean (range) (SD) | ||||
| Age (years) | 26.5 (20–33) (±2.8) | 26.1 (20–33) (±2.7) | 27.6 (23–30) (±3.1) | |
| Height (m) | 1.86 (1.72–1.98) (±0.06) | 1.87 (1.77–1.96) (±0.06) | 1.83 (1.72–1.98) (±0.06) | |
| Weight (kg) | 99 (73–116) (±10.9) | 101 (83–116)(±11.2) | 95 (73–116) (±9.5) | |
| Heart rate (bpm) | 175 (156–195) (±9) | 174 (156–195) (±9) | 176 (162–192) (±9.1) | |
| Perceived exertion | 15.6 (14–18) (±0.9) | 15.5 (14–17) (±0.9) | 15.8 (15–18) (±0.9) | |
| Lactate | 11.3 (5.7–16.2) (±2.3) | 11.3 (8.1–16.2) (±2.1) | 11.2 (5.7–15.8) (±2.3) | |
| Symptoms | p Value* | |||
| Wheezing | 7 (17%) | 2 (7%) | 5 (42%) | 0.006 |
| Woken by dyspnoea | 4 (10%) | 0 | 4 (33%) | 0.001 |
| Attack of dyspnoea | 5 (12%) | 1 (3%) | 4 (33%) | 0.001 |
| Atopy | 6 (10%) | 4 (13%) | 2 (17%) | 0.78 |
| Pneumonia | 4 (10%) | 2 (7%) | 2 (17%) | 0.318 |
| Dyspnoea postexercise | 8 (19%) | 3 (10%) | 5 (42%) | 0.015 |
| Cough postexercise | 13 (31%) | 6 (20%) | 7 (58%) | 0.047 |
| Spirometry; litres ±SD (% predicted±SD) | ||||
| FEV1 pre-exercise | 4.73±0.73 (100±12.63) | 4.8±0.62 (100±11.8) | 4.53±0.96 (98±14.9) | |
| FEV1 postexercise | 4.66±0.79 (98±14.1) | 4.86±0.62 (101±12.3) | 4.14±0.93 (90±15.7) | |
| FVC pre-exercise | 5.88±0.79 (104±10.5) | 5.79±1.04 (105±11.2) | 5.92±0.68 (102±10.4) | |
| FVC postexercise | 5.81±0.82 (102±10.8) | 5.52±1.06 (100±11.7) | 5.93±0.68 (103±10.6) | |
↵* Pearson χ2 test.
AOG, airflow obstruction group; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; NAOG, non-airflow obstruction group.