Characteristics of the study participants and the hamstring injuries
| Variable | Number | Per cent |
| Study participants | 47 | |
| Gender | ||
| Male | 22 | 47 |
| Female | 24 | 53 |
| Median age in years (IQR, range) | 24 (4, 19–37) | |
| Injuries | 70 | |
| Grade 0 injuries | 16 | 23 |
| Median TRFT in days (IQR, range) | 17 (13, 4–70) | |
| Location of injury | n=54 | |
| Proximal | 17 | 31 |
| Central | 14 | 26 |
| Distal | 23 | 43 |
| Muscle injured | n=54 | |
| Biceps femoris long head | 38 | 70 |
| Semi-membranosis | 10 | 19 |
| Semi-tendinosis | 2 | 4 |
| Biceps femoris short head | 1 | 2 |
| Multiple | 3 | 6 |
| Reinjury (recurrence or exacerbation) | 2 (1a and 2b) | 3 |
| Injured during training or competition | n=70 | |
| Training | 50 | 71 |
| Competition | 17 | 24 |
| Warm up for competition | 3 | 4 |
| Activity during which injury occurred | n=59 | |
| Sprinting (>90% maximum velocity) | 32 | 54 |
| Running (50%–90% maximum velocity) | 16 | 27 |
| Jumping | 5 | 8 |
| Other | 6 | 10 |
| Self-reported phase of gait at injury | n=62 | |
| Stance | 23 | 33 |
| Other/unsure | 16 | 23 |
| Gradual subacute | 12 | 17 |
| Terminal swing | 11 | 16 |
TRFT, time to return to full training.