Table 1.
Background characteristics and race results of 20 healthy adults completing a short maximal aerobic field exercise
| Variables, units | Range | ||
|---|---|---|---|
| Male gender, n (%) | 17 | (85) | |
| Age, years (SD) | 40.2 | (9.7) | |
| BMI, kg/m2 (SD) | 23.8 | (2.7) | |
| Cigarette smoking, n (%) | 0 | (0) | |
| Moist snuff, n (%) | 2 | (10) | |
| Asthma previous,* n (%) | 4 | (20) | |
| Atopic disease,† n (%) | 6 | (30) | |
| Exercise >3 times/week, n (%) | 10 | (50) | |
| Exercise daily, n (%) | 7 | (35) | |
| Ever shortness of breath/coughing during/after exercise, n (%) | 5 | (25) | |
| Race time, min, mean (SD) | 13.9 | (2.3) | 10.4–19.6 |
| Lactate, mmol/L, mean (SD) | 10.7 | (2.1) | 4.7–14.0 |
| Borg score perceived exertion (0–10),‡ median | 9 | 5–10 | |
| Inspiratory stridor, n (%) | 1 | (5) |
*Asthma previous defined as previous use of asthma medication in childhood/youth.
†Atopic disease defined as asthma, allergic rhinitis or conjunctivitis, allergic urticaria, atopic eczema, food allergy or drug allergy ever diagnosed by a physician.
‡Borg score grades perceived exertion from ‘0=nothing at all, 0.5=extremely weak, 1=very weak, 2=weak, 3=moderate, 4=somewhat strong, 5=strong, 7=very strong, 9=very, very strong, 10=extremely strong’.17