Table 1 Basic characteristics of the participants

Age (years)

7.6 ± 0.2

8.2 ± 0.2^*

9.3 ± 0.2^*†

10.5 ± 0.3

11.1 ± 0.3^*

12.2 ± 0.3^*†

Height (cm)

125.0 ± 5.3

129.0 ± 5.7^*

133.4 ± 6.6^*†

140.9 ± 5.5

143.7 ± 5.7^*

150.2 ± 6.4^*†

Body weight (kg)

25.8 ± 3.2

28.4 ± 3.5^*

32.1 ± 5.3^*†

38.3 ± 6.0

39.4 ± 5.8^*

44.9 ± 6.2^*†

Competition years (years)

2.0 ± 0.9

2.2 ± 0.9^*

3.5 ± 0.9^*†

4.0 ± 1.9

4.6 ± 2.0^*

5.7 ± 2.0^*†