Fig. 3
SpO2 (a), pulse rate (b), forearm SkBF (c), and finger SkBF (d) by air temperature changes in NC and HC. Data were expressed as mean ± SD. The SkBF values are presented as a percentage of P1. *Significant difference compared between conditions. NC normobaric normoxia with cold; HC hypobaric hypoxia with cold; SpO2 saturation of percutaneous oxygen; SkBF skin blood flow; phase 1 (P1) Tair was 28 °C and PB was 760 mmHg in both conditions. Phase 2 (P2) Tair was 28 °C in both conditions, and while PB was maintained at 760 mmHg in the NC condition, PB was decreased from 760 to 493 mmHg in the HC condition. Finally during phase 3 (P3), Tair was decreased from 28 to 19 °C in both conditions and PB was 760 mmHg in NC and 493 mmHg in HC