Table 1.

Physiological parameters.

Variable	Condition	Before exposure to hypoxia	Pre-Stroop	During exercise	Post-Stroop
HR (bpm)	ME	69.6 (1.8)	76.2 (2.2)	128.7 (3.1)†	85.7 (2.5)†
RPE (point)			7.9 (0.7)	12.9 (0.5)†
${\dot{V}}_{\text{E}}\left(\text{L}/min\right)$		10.8 (0.5)	10.3 (0.4)	42.8 (2.2)†	10.4 (0.5)
ETCO2 (%/min)		5.1 (0.1)	5.3 (0.0)	6.1 (0.1)†	5.2 (0.0)
HR (bpm)	HE	70.3 (2.6)	76.7 (2.8)	138.7 (2.8)*†	89.2 (3.1)*†
RPE (point)			7.8 (0.5)	13.9 (0.5)†
${\dot{V}}_{\text{E}}\left(\text{L}/min\right)$		10.2 (0.9)	9.3 (0.7)	44.6 (3.2)†	9.3 (0.7)
ETCO2 (%/min)		5.1 (0.1)	5.3 (0.1)	5.7 (0.1)*†	5.2 (0.1)

The value of each indicator is averaged over the 3 min before exposure to hypoxia, during the Stroop task (Pre and Post, 6.5 min each), and during exercise (10 min). HE, hypoxic exercise; ME, milder hypoxic exercise; HR, heart rate; RPE, ratings of perceived exertion; ${\dot{V}}_{\text{E}}$, ventilation; ETCO₂, end-tidal carbon dioxide concentration; bpm, beats per minute.

Values are presented as mean (standard error). *P < 0.05 versus (vs.) ME condition, ^†P < 0.05 vs. pre-Stroop.