Descriptive, MRI and palpation data, as means±1 SD (median and range) or ratios (%) for athletes in the L-protocol and the C-protocol, respectively
| L-protocol (n=28) | C-protocol (n=28) | p Value (effect size) | |
|---|---|---|---|
| Age (years) | 21±4 (19, 15 to 29) | 19±3 (18, 15 to 29) | 0.167 (0.443)* |
| Height (cm) | 178±9 (176, 162 to 193) | 180±8 (181, 165 to 193) | 0.520 (−0.174) * |
| Mass (kg) | 71±9 (70, 53 to 86) | 71±10 (75, 53 to 87) | 0.890 (−0.019) * |
| Female (%)/male (%) | 32/68 | 32/68 | 1.000 (0) † |
| Sprinting-type (%)/stretching-type (%) | 93/7 | 93/7 | 1.000 (0) † |
| Proximal free tendon (PT) not involved (%)/PT involved (%) | 57/43 | 57/43 | 1.000 (0) † |
| Distance from proximal injury pole to ischial tuberosity (mm) | 75±83 (65, −30 to 250) | 73±70 (50, −20 to 250) | 0.864 (0.031) * |
| Injury length (mm) | 145±85 (105, 30 to 310) | 149±65 (155, 40 to 295) | 0.520 (−0.060) * |
| Peak palpation pain, distance to ischial tuberosity (cm) | 10±7 (9, 1 to 26) | 10±7 (7, 2 to 24) | 0.994 (0.010) * |
*Mann-Whitney U test (Cohen's d).
†χ2 test π. The level of significance was set at p≤0.05.