Group | Children aged 6–11 yrs |
Measurement | FEV1 at 3, 5 and 10 mins, and more if required; FEV1 % pred pre-exercise: ≥75% |
Mode of exercise | Free running on the flat at 7 km·h−1 |
Index of intensity | 85–90% pred of maximum; heart rate of 180–190 beats·min−1 |
Duration | 6 mins |
Inspired air | Absolute water content <10 mgH2O·L−1 equivalent to 23°C <50% relative humidity |
Ventilating | Via mouth with nose-clip in place |
Positive response | FEV1 % decrease ≥13% |
FEV1: forced expiratory volume in 1 s; % pred: % predicted. Modified from [6] with permission from the publisher.