Table 3. Health-related physical fitness components for soccer and control group before an 8-week training intervention.
SSG (n = 20) MSG (n = 20) NSG (n = 20) Mixed-begin ANCOVA
Body mass (kg) Pre
Post
Post-pre (%D)		 67.9 ± 14.2
64.6 ± 13.8a
-4.9%		 69.6 ± 17.5
66.1 ± 16.5b
-5.1%		 67.3 ± 14.9
66.9 ± 14.2
-0.7%		 time × group
(F = 56; p <0.001; = 0.663)
BMI (kg/m2) Pre
Post
Post-pre (%D)		 22.3 ± 4.6
21.2 ± 4.5a
-4.9%		 23.6 ± 5
22.4 ± 4.8b
-5.1%		 22.1 ± 4.3
22 ± 4.1
-0.5%		 time × group
(F = 63.57; p <0.001; = 0.69)
SLJ (m) Pre
Post
Post-pre (%D)		 2.21 ± 0.23
2.29 ± 0.21a
3.7%		 2.18 ± 0.2
2.24 ± 0.19b
3.1%		 2.17 ± 0.22
2.18 ± 0.2
0.8%		 time × group
(F = 17.24; p <0.001; =0.377)
VJ (cm) Pre
Post
Post-pre (%D)		 35.33 ± 4.83
37.42 ± 5.19a
5.9%		 35.8 ± 6.09
37.61 ± 6.5b
5%		 34.79 ± 4.66
35.0 ± 4.64
0.6%		 time × group
(F = 13.94; p <0.001; = 0.328)
10 m sprint test (sec) Pre
Post
Post-pre (%D)		 1.43 ± 0.08
1.32 ± 0.08a
-7.6%		 1.38 ± 0.09
1.31 ± 0.08b
-5.4%		 1.39 ± 0.08
1.37 ± 0.06
-1.1%		 time × group
(F = 17.47; p <0.001; = 0.38)
30 m sprint test (sec) Pre
Post
Post-pre (%D)		 4.34 ± 0.27
4.14 ± 0.23a
-4.7%		 4.3 ± 0.33
4.16 ± 0.29b
-3%		 4.21 ± 0.22
4.21 ± 0.21
-0.4%		 time × group
(F = 10.7;p <0.001; = 0.375)
COD time(sec) Pre
Post
Post-pre (%D)		 2.48 ± 0.21
2.36 ± 0.15a
-4.4%		 2.49 ± 0.15
2.35 ± 0.11b
-5.6%		 2.46 ± 0.17
2.45 ± 0.18
-0.1%		 time × group
(F = 17.07; p <0.001; = 0.382)
20 m MFT (m) Pre
Post
Post-pre (%D)		 1123 ± 275.09
1256 ± 260.73a
11.8%		 1131 ± 188.9
1281 ± 188.39b
13.6%		 1179 ± 243.18
1184.5 ± 214.98
0.5%		 time × group
(F =32.68; p <0.001; = 0.556)
ES: effect size; BMI: body mass index SCG: small side game; MSG: middle side game; NSG: no soccer control group; SLJ: standing long jump; VJ: vertical jump; COD: change-of-direction MFT: multistage fitness test; a: significant difference between small side game and control group (p < 0.05); b: significant difference between middle side game and control group (p < 0.05).