Table 3. Descriptive statistics (Mean ± Standard Deviation) for pre- and post-training results in each group; results of two-way analysis of the variance for main effects (Group and Time) and Interaction (Group x Time), and pre- to post-training differences in percentages (%).
Plyometric-group (n = 21)
Skill-based-group (n = 20)
Analysis of variance (F test)
Pre-
Post-
%
Pre-
Post-
%
Group
Time
Interaction
BH (cm)
177.9 ± 5.5
177.2 ± 5.1
<0.1
175.4±7.0
176.0±7.1
<0.1
2.9
0.1
0.1
BM (kg)
61.9 ± 5.2
61.2 ± 5.4 *
1.1
58.5±7.5
58.5±7.9
<0.1
2.2
4.0
4.3 #
S20m (s)
3.80 ± 0.32
3.53 ± 0.22 *
7.6
4.15±0.27
4.10±0.30
1.2
34.7 #
15.5 #
7.3 #
SBJ (cm)
190.7 ± 22.9
205.3 ± 17.3 *
7.6
167.3±18.5
172.4±18.7 *
3.1
21.8 #
96.8 #
22.4 #
CMJ (cm)
38.0 ± 6.5
48.5 ± 5.2 *
27.6
28.9±7.2
34.1±7.1*
18.0
34.3 #
275.1 #
31.5 #
MBT (m)
6.1 ± 0.6
7.6 ± 0.7 *
24.5
5.3±0.8
5.8±0.8 *
9.4
34.5 #
166.1 #
40.2 #
BH – body height, BM – body mass, S20m – sprint over 20 meters distance, SBJ – standing broad jump, CMJ – countermovement jump, MBT – medicine ball throw
# denotes F-test significance of p < 0.05
* denotes pre- to post-measurement post-hoc significance of p < 0.05.