Table 3. Sprinting velocity (VEL) and change of direction (COD) speed, pre and post 6 weeks of preseason in under-20 soccer players.
| Group | JSG | OPPG | Between group differences in the change | |
|---|---|---|---|---|
| Rating | ||||
| Pre | 4.95 ± 0.22 | 5.16 ± 0.30 | ES: 1.47 (0.51; 2.30) Large | |
| VEL 5 m (m.s-1) | Post | 5.32 ± 0.16 | 5.23 ± 0.27 | 99/01/00 Very Likely |
| Δ% | 7.7 (4.7–10.5) | 1.4 (-1.2–3.9)* | ||
| Pre | 5.83 ± 0.22 | 5.92 ± 0.34 | ES: 1.92 (0.87; 2.78) Large | |
| VEL 10 m (m.s-1) | Post | 6.15 ± 0.17 | 5.94 ± 0.26 | 100/00/00 Almost Certainly |
| Δ% | 5.5 (3.8–7.0) | 0.3 (-1.4–2.0)* | ||
| Pre | 6.77 ± 0.19 | 6.90 ± 0.35 | 1.74 (0.69; 2.53) Large | |
| VEL 20 m (m.s-1) | Post | 7.01 ± 0.17 | 6.90 ± 0.30 | 99/01/00 Very Likely |
| Δ% | 3.6 (2.5–4.6) | 0.0 (-1.5–1.5)* | ||
| Pre | 7.33 ± 0.22 | 7.42 ± 0.39 | ES: 2.64 (1.44; 3.57) Very large | |
| VEL 30 m (m.s-1) | Post | 7.55 ± 0.21 | 7.38 ± 0.35 | 100/00/00 Almost Certainly |
| Δ% | 3.0 (2.1–3.8) | -0.7 (-1.5–0.3)* | ||
| Pre | 3.60 ± 0.16 | 3.63 ± 0.11 | ES: 1.65 (0.64; 2.46) Large | |
| COD Speed (m.s-1) | Post | 3.75 ± 0.15 | 3.64 ± 0.14 | 99/01/00 Very Likely |
| Δ% | 4.2 (2.8–5.6) | 0.3 (-1.4–1.9)* |
Note: Δ%: percentage of change (90% confidence limits); ES: effect size (90% confidence limits); JSG: jump squat group; OPPG: Olympic push press group.
*Interaction effect (group x time), P < 0.05.