Table 1.

Baseline characteristics of the sample.

	AitN (n = 13)	AitH (n = 13)	SitN (n = 15)	SitH (n = 18)	P-value
	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD
Age, years	43.14 ± 7.67	44.43 ± 7.18b	40.05 ± 8.66	37.40 ± 10.25a	0.038
Height, m	1.64 ± 0.06	1.63 ± 0.06	1.65 ± 0.07	1.63 ± 0.05	NS
Body mass, kg	80.41 ± 16.27	80.10 ± 18.88	77.94 ± 11.31	73.73 ± 11.11	NS
BMI, kg·m2	29.59 ± 5.25	30.03 ± 6.37	28.74 ± 4.77	27.71 ± 4.55	NS
Fat mass, %	38.89 ± 6.25	40.17 ± 7.20	37.73 ± 5.28	37.65 ± 3.93	NS

BMI: body mass index; AitH: Aerobic interval training Hypoxia group; AitN: Aerobic interval training Normoxia group; SitH: Sprint interval training Hypoxia group; SitN: Sprint interval training Normoxia group. P-values of analysis of variance to compare differences between groups at baseline.

^aIndicates differences with respect to AitH (post hoc t-test with Bonferroni correction).

^bIndicates differences with respect to SitH (post hoc t-test with Bonferroni correction).Values in bold are significant.