Effects of different training intensities in high-intensity interval training (HIIT) on maximal aerobic velocity, hematological and muscle-damage markers in healthy young adults

Table 1 Mean (± SD) values for age and anthropometric characteristics for all groups

Variables	Group	Pre	Post	p (eta-squared [η_p²])
Variables	Group	Pre	Post	main effect of group	main effect of time	group x time interaction
Body mass (kg)	EG₁₀₀	72.7 ± 8.1	72.2 ± 7.7	0.532 (0.12)	0.910 (0.01)	0.233 (0.13)
	EG₁₁₀	72.9 ± 6.2	72.4 ± 6.1
	CG	72.5 ± 4.2	72.3 ± 3.7
Body height (cm)	EG₁₀₀	178.8 ± 5.4	179.0 ± 5.3	0.786 (0.03)	0.340 (0.17)	0.345 (0.08)
	EG₁₁₀	180.9 ± 6.8	181.0 ± 6.8
	CG	180.1 ± 6.2	179.9 ± 5.7
BMI (kg.m⁻²)	EG₁₀₀	22.7 ± 1.3	22.5 ± 1.2	0.368 (0.09)	0.162 (0.12)	0.197 (0.11)
	EG₁₁₀	22.3 ± 1.4	22.1 ± 1.3
	CG	22.4 ± 1.0	22.3 ± 0.9
BF (%)	EG₁₀₀	11.6 ± 1.1	11.5 ± 1.2	0.791 (0.02)	0.103 (0.16)	0.174 (0.13)
	EG₁₁₀	11.4 ± 1.5	11.3 ± 1.4
	CG	11.8 ± 1.4	11.9 ± 1.4
MAV (km.h⁻¹)	EG₁₀₀	15.82 ± 1.61	16.74 ± 1.48 a	0.591 (0.05)	< 0.001 (0.71)	< 0.001 (0.61)
	EG₁₁₀	16.14 ± 2.10	17.58 ± 2.16 ac
	CG	16.09 ± 1.95	16.13 ± 1.83

Data are mean values (± SD), BM, body mass; BMI, body mass index; BF, Body fat; EG₁₀₀, trained group with 100% MAV (n = 10); MAV, Maximal aerobic velocity; EG₁₁₀, trained group with 110% MAV (n = 10); CG, control group (n = 9); HIIT, high intensity interval training program; pre-test, before HIIT; post-test, after HIIT
a: significant difference between before and after HIIT
c: significant difference between EG₁₀₀ and EG₁₁₀

ISSN: 2052-1847