Table 1. Experimental protocol for the treadmill walking test in the climate chamber. For the second half of subjects the rest period at the end was prolonged from 30 to 60 min, or until the termination criteria of any skin temperature less than 8 °C was met.
| Work intensity | Wind and ambient temperature | Treadmill settings | Duration of work intensity | Total time in test | ||
|---|---|---|---|---|---|---|
| (m·s−1) | (°C) | Speed (km·h−1) | Incline (%) | (Min) | (Min) | |
| Moderate | 3 | −20 | 5 | 0 | 30 | 30 |
| Hard | 3 | −20 | 5 | 5 | 30 | 60 |
| Rest (Standing) | 3 | −20 | 0 | 0 | Test 1–6: 30 | 90 |
| Test 7–12: 60* | ≤120 | |||||
*or termination criterion (skin temperature less than 8 °C) met.