Figure 3

Correlation between SpO2 and HR at 135 min. SpO2 and HR show a negative correlation (r = − 0.618, p = 0.024) at the end of HH (135 min).
Correlation between SpO2 and HR at 135 min. SpO2 and HR show a negative correlation (r = − 0.618, p = 0.024) at the end of HH (135 min).