Group | Adults and children, aged 6–50 yrs |
Measurement | FEV1 pre and post and at 5, 10, 15 and 30 mins |
Mode of exercise | Started by walking then running on a treadmill at 4.1 km·h−1 on a 2.5% slope |
Index of intensity | Heart rate of 80–90% maximum (220 beats·min−1 minus age in years) within 2 mins and maintained for 6 mins |
Ventilation | Best measured directly >17.5-times FEV1 |
Estimated ventilation | Can be based on workload and VO2 |
Target duration | 8 mins |
Inspired air | Medical air, 20–30°C |
Positive response | FEV1 % decrease ≥10% |
FEV1: forced expiratory volume in 1 s; % pred: % predicted; VO2: oxygen consumption. Modified from [10] under creative commons and [11] with permission from the publisher.