Baseline characteristics for players in the control, in the regular, coach-focused, and in the comprehensive, player-focused intervention groups, presented as frequencies (%) and means (95% CI).
| Control (n=135) | Regular (n=121) | Comprehensive (n=129) | |
|---|---|---|---|
| Age group | |||
| U16 | 89 (65.9) | 70 (57.9) | 55 (42.6) |
| U18 | 46 (34.1) | 51 (42.2) | 74 (57.4) |
| Playing level | |||
| Tier 1 | 78 (57.8) | 37 (30.6) | 31 (24.0) |
| Tier 2 | 31 (23.0) | 0 (0) | 71 (55.0) |
| Tier 3 | 26 (19.3) | 84 (69.4) | 27 (20.9) |
| Playing position | |||
| Forward | 38 (28.6) | 29 (25.0) | 25 (19.7) |
| Midfield | 51 (38.1) | 41 (35.3) | 53 (41.7) |
| Defense | 36 (26.8) | 37 (31.9) | 43 (33.4) |
| Goal keeper | 9 (6.7) | 9 (7.7) | 6 (4.7) |
| Missing | 1 (0.7) | 5 (4.1) | 2 (1.6) |
| Previous injury | |||
| Yes | 36 (26.7) | 10 (8.3) | 14 (10.9) |
| Missing | 0 (0) | 1 (0.8) | 1 (0.8) |
| Single-leg Balance (s) | |||
| Left | 6.3 (5.2–7.4) | 5.9 (5.2–6.7) | 5.7 (4.9–6.5) |
| Right | 5.6 (5.0–6.2) | 5.8 (5.1–6.4) | 6.0 (5.2–6.7) |
| Missing (%) | 27 (20.0) | 10 (8.3) | 12 (9.3) |
| Star Excursion Balance Test (cm) | |||
| Left | |||
| Anterior | 76.4 (75.3–77.6) | 74.0 (72.9–75.2) | 76.1 (75.0–77.3) |
| Posterolateral | 81.3 (80.0–82.6) | 79.9 (78.5–81.3) | 82.3 (80.8–83.7) |
| Posteromedial | 78.6 (77.1–80.1) | 77.2 (75.7–78.8) | 79.4 (77.8–81.0) |
| Missing (%) | 27 (20.0) | 10 (8.3) | 12 (9.3) |
| Right | |||
| Anterior | 75.7 (74.5–77.0) | 74.2 (73.0–75.4) | 74.9 (73.8–76.1) |
| Posterolateral | 80.1 (78.8–81.4) | 80.3 (78.8–81.7) | 80.9 (79.5–82.3) |
| Posteromedial | 78.8 (77.2–80.3) | 77.4 (75.7–79.0) | 79.4 (77.9–81.0) |
| Missing (%) | 27 (20.0) | 12 (9.9) | 12 (9.3) |
| Single-leg Triple hop (cm) | |||
| Left | 434.0 (423.3–444.7) | 427.4 (416.8–438.0) | 442.9 (431.3–454.6) |
| Right | 443.0 (431.7–454.3) | 437.4 (425.9–448.9) | 450.7 (438.5–463.0) |
| Missing (%) | 28 (20.7) | 13 (10.7) | 12 (9.3) |
| Jump-over-a-bar (number) | 35.0 (34.0–36.1) | 36.3 (35.5–37.0) | 38.6 (37.9–39.3) |
| Missing (%) | 27 (20.0) | 13 (10.7) | 12 (9.3) |