Table 4.

Basal cardiorespiratory evaluated in population that work at several altitudes.

	Altitude (m)
	Sea level	1,600	2,500
Oxygen saturation (%)	98.5 ± 0.9	94.0 ± 1.1*	92.8 ± 1.3*†
Heart rate (bpm)	70.4 ± 8	75.1 ± 11.5	78.6 ± 10.9*
Systolic arterial pressure (mmHg)	127.8 ± 10.6	131.7 ± 11.3*	125.5 ± 8.8
Dyastolic arterial pressure (mmHg)	77.2 ± 9.3	86.5 ± 8.2*	83.3 ± 7.9

^*Mean ± SD vs. sea level.

^†Mean ± SD vs. 1,600 m (p < 0.05).