Table 2
Mean scores (± SD) of the mixed-longitudinal data set for training experience, anthropometric variables, repeated-sprint ability, aerobic endurance and lower limb explosive strength, by age group.
Age
n
Years of training
(yrs)
Annual volume training
(h)
Stature
(cm)
Body
mass
(kg)
Fat-free
mass
(kg)
Sum of 7 sprints
(s)
Aerobic endurance
(m)
Lower limb explosive strength
(cm)
11 years
40
2.5 (0.9)
111.7 (25.8)
143.1 (6.0)
36.4 (5.3)
32.2 (3.8)
62.1 (3.4)
680 (360)
25.6 (4.2)
12 years
57
3.5 (1.2)
141.7 (33.2)
149.3 (7.1)
40.5 (6.4)
35.6 (4.9)
59.2 (3.1)
960 (360)
27.8 (5.0)
13 years
83
4.5 (1.1)
147.7 (52.5)
158.0 (8.1)
47.4 (8.6)
41.4 (6.5)
57.6 (3.1)
1140 (320)
30.6 (5.3)
14 years
80
5.5 (1.1)
167.1 (49.2)
164.9 (7.6)
53.7 (8.5)
46.7 (6.4)
55.1 (2.3)
1320 (380)
32.9 (5.0)
15 years
66
6.6 (1.1)
168.9 (48.7)
169.9 (6.4)
59.9 (8.6)
51.4 (5.4)
53.7 (2.2)
1520 (320)
35.3 (4.7)
16 years
30
7.3 (1.4)
185.2 (46.8)
172.5 (5.2)
64.4 (9.6)
54.2 (5.6)
52.0 (2.4)
1620 (220)
37.3 (5.6)
17 years
10
8.2 (1.1)
187.9 (40.8)
173.7 (4.2)
68.0 (9.4)
56.8 (6.1)
51.4 (2.2)
1720 (120)
35.9 (2.6)