VO2max	Maximal oxygen uptake
Pmax	Maximal power output in the progressive test
VE	Minute ventilation
VCO2	Carbon dioxide output
RER	Respiratory exchange ratio
PETO2	End-tidal partial pressure of oxygen
PETCO2	End-tidal partial pressure of carbon dioxide
VT1	First ventilatory threshold
VT2	Second ventilatory threshold
SkBF	Skin blood flow
ΔSkBF	Change in skin blood flow
T	Body surface temperature
HR	Heart rate
HR peak	Peak heart rate during the 110%Pmax test
HRR	Recovery heart rate at 1, 2, or 3 min after completion of the 110%Pmax test
ΔHRR	Difference between HR peak and HRR measured at 1, 2, or 3 min of recovery
RMSSD	Root mean square of successive differences between RR intervals
SDNN	Standard deviation of RR intervals
HFP	High-frequency power
LFP	Low-frequency power
non-ARDSv	Measurement in the protocol without ARDSv
ARDSv	Measurement in the protocol with ARDSv
avRT	Mean reaction time
fRT	Fastest reaction time recorded in the test