Table 3 Number of involved players and duration of crowding during breaks. Data for the different playing levels are presented as frequency per match-hour and as median with interquartile range. Differences between playing levels are displayed as medians with 95% confidence intervals. P values from Kruskal–Wallis test.
All matches | Professional | Amateur | Youth | Δ Youth–professional | Δ Amateur–professional | Δ Amateur–youth | P value | |
|---|---|---|---|---|---|---|---|---|
Free-kick wall | ||||||||
N players | 2.5 (2, 3) | 2.2 (2, 3) | 2.5 (2.5, 3.1) | 2.4 (0, 2.9) | 0.3 (− 0.7, 0.9) | 0.4 (− 0.3, 1) | 0.1 (− 0.4, 1.3) | 0.38 |
Duration (s) | 15 (8.4, 21.7) | 21.4 (13.8, 24.8) | 18.6 (16.3, 22) | 8.9 (0, 14.8) | − 12.6 (− 22.3, − 5.5) | − 2.9 (− 8.9, 3.9) | 9.8 (3.3, 18.6) | < 0.001 |
Goal celebration | ||||||||
N players | 4.3 (0, 6.4) | 4.7 (2.5, 6.5) | 6.7 (6.1, 8.8) | 0 (0, 3.3) | − 4.7 (− 6.4, − 2.1) | 2 (− 0.1, 4.5) | 6.7 (4.8, 9) | < 0.001 |
Duration (s) | 4 (0, 8.9) | 4.7 (1.3, 11.3) | 9.1 (6.3, 15.5) | 0 (0, 4) | − 4.7 (− 11.1, − 1.5) | 4.4 (− 1.3, 11.8) | 9.1 (5.5, 16.8) | 0.001 |
Corner/free-kick | ||||||||
N players | 5.7 (4.6, 6.5) | 6.2 (5.6, 7.6) | 6.7 (5.8, 7.3) | 4.3 (4, 5) | − 1.9 (− 3.2, − 1.2) | 0.5 (− 0.8, 1.5) | 2.4 (1.2, 3.3) | < 0.001 |
Duration (s) | 6.5 (5.1, 8.4) | 7 (5.8, 8.1) | 11.4 (8.5, 16.3) | 5.2 (3.8, 6.5) | − 1.8 (− 3.6, 0.3) | 4.4 (0.9, 10.8) | 6.2 (2.6, 12.5) | < 0.001 |
Injury | ||||||||
N players | 4.6 (3.6, 5.9) | 4.2 (3.4, 4.8) | 5.5 (4.3, 7.9) | 5.1 (0, 6) | 0.9 (− 0.3, 2.3) | 1.4 (− 0.2, 4.1) | 0.4 (− 1.4, 3.5) | 0.09 |
Duration (s) | 9.9 (5.6, 15) | 10.4 (6.2, 14.9) | 13.8 (10.2, 27.6) | 7 (0, 10.8) | − 3.4 (− 8.5, 1) | 3.5 (− 3.7, 18.2) | 6.9 (0.8, 22) | 0.04 |
