Participants, male (♂) and female (♀) | Age (years) | Training volume (days/week) | Training volume (hours/week) | Respiratory symptoms (yes/no) | Allergy (yes/no) | Asthma (yes/no) | Antiasthmatic medication (yes/no) |
1 (♂) | 14 | 4–6 | 8–10 | Yes | No | No | Yes |
2 (♀) | 17 | 7 | 10–12 | Yes | Yes | Yes | Yes |
3 (♀) | 16 | 7 | 12–14 | Yes | No | No | Yes |
4 (♀) | 15 | 4–6 | 10–12 | Yes | Yes | No | No |