Table 1.

Participant’s baseline demographics.

Variables	Control Group			HIIT Group
n	29 (14 boys)			27 (17 boys)
Age (years)	10.4	±	1.1	10.0	±	1.0
Y-PHV (years)	−2.7	±	1.3	−2.1	±	1.7
Body height (cm)	139.4	±	8.5	138.7	±	10.0
Body mass (kg)	32.0	±	6.3	33.2	±	10.5
BMI (kg/m2)	16.3	±	1.8	16.9	±	2.7
MVPA (day/week)	2.5	±	2.0	2.3	±	1.3

Note: Values are mean ± SD; Y-PHV, year from peak height velocity; MVPA, days of moderate-to-vigorous intensity physical activity over 60 min/day.