Table 1.

Participant characteristics

	Total	Boys	Girls
n	19	9	10
Age, years	10.1 ± 0.5	10.2 ± 0.6	10.0 ± 0.3
Tanner stages, %	60% T1, 20% T2, 20% T3	30% T1, 40% T2, 30% T3	90% T1, 10% T3
Years to PHV, years	− 2.4 ± 0.8	− 3.03 ± 0.3	− 1.9 ± 0.6
Stature, m	1.39 ± 0.07	1.42 ± 0.05	1.38 ± 0.09a
Body mass, kg	33.7 ± 5.7	35.03 ± 3.8	32.6 ± 7.0a
BMI, kg m− 2	17.1 ± 2.3	17.3 ± 1.7	17.2 ± 2.8
Peak $\dot{V}{\text{O}}_{\text{2}}$, l min− 1	1.63 ± 0.39	1.79 ± 0.44	1.49 ± 0.29a
Scaled peak $\dot{V}{\text{O}}_{\text{2}}$, l kg− 0.79 min− 1	100.8 ± 18.8	98.8 ± 17.4	102.5 ± 20.7a
GET, l min− 1	1.03 ± 0.25	1.17 ± 0.25	0.90 ± 0.18

Mean ± SD

PHV peak height velocity, T1 Tanner stage 1, T2 Tanner stage 2, T3 Tanner stage 3, BMI body mass index, $\dot{V}{\text{O}}_{\text{2}}$ oxygen uptake, GET gas exchange threshold

^aSignificant difference between boys and girls (p < 0.05)