altitude	group	6 h PB	12 h PB	24 h PB	48 h PB	72 h PB
1517 m	SG (n = 6)	0.478 ± 0.097
	IFR (n = 30)	0.327 ± 0.040^a	0.241 ± 0.024^a	0.306 ± 0.020^a	0.312 ± 0.022^a	0.355 ± 0.042^a
	DFR (n = 30)	0.269 ± 0.011^ab	0.202 ± 0.010^ab	0.251 ± 0.013^ab	0.256 ± 0.013^ab	0.278 ± 0.067^ab
3848 m	SG (n = 6)	0.376 ± 0.035
	IFR (n = 30)	0.297 ± v	0.204 ± 0.030^ac	0.245 ±0.013^ac	0.264 ±0.009^ac	0.289 ± 0.014^ac
	DFR (n = 30)	0.228 ± 0.007^abc	0.145 ± 0.018^aBc	0.206 ± 0.006^abc	0.234 ± 0.009^abc	0.240 ± 0.010^abc