Table 1. Participant characteristics.
 | 
Under 12s | 
U14s | 
U16+ | 
| M (n = 2) | 
F (n = 6) | 
M (n = 4) | 
F (n = 5) | 
M (n = 8) | 
F (n = 2) | 
| Age (years) | 
12.0 ± 0.0 | 
11.3 ± 0.5 | 
13.3 ± 0.5 | 
13.2 ± 0.4 | 
17.6 ± 1.8 | 
16.5 ± 0.7 | 
| Body mass (kg) | 
46.5 ± 14.8 | 
47.8 ± 7.7 | 
61.5 ± 14.0 | 
51.1 ± 5.4 | 
69.5 ± 6.0 | 
65.9 ± 8.7 | 
| Height (m) | 
1.7 ± 0.1 | 
1.6 ± 0.1 | 
1.7 ± 0.1 | 
1.6 ± 0.1 | 
1.8 ± 0.1 | 
1.7 ± 0.1 | 
Values reported as means ± SD. M = Males, F = Females. U16+ consists of 1 x 15, 3 x 16, 1 x 17, 3 x 18, and 2 x 20-year-olds. Body mass data was self-reported. Significant differences between U12s and U16s, and U14s and U16s body mass (p < 0.05).