Items of the baseline questionnaire
| Section | Items |
| Demographics | Sex |
| Date of birth | |
| Height (cm) | |
| Weight (kg) | |
| Training | Running experience (years) |
| Running frequency (times per week)* | |
| Running time (hours per week)* | |
| Running distance (km per week)* | |
| Running speed (min per km)* | |
| Membership of a running club (yes/no) | |
| Use of training schedules (yes/no) | |
| Training surface (paved/unpaved and flat/non-flat) | |
| Types of training | |
| Endurance training (%) | |
| Interval training (%) | |
| Specific exercises (%) | |
| Shoe type (neutral/anti-pronation/minimalistic/unknown) | |
| Number of running shoes | |
| Advices on running shoes | |
| Use of bandages (yes/no) | |
| Use of sport compression socks (yes/no) | |
| Use of inlays (yes/no) | |
| Average cadence (steps per min) | |
| Foot strike pattern (rearfoot/midfoot/forefoot/unknown) | |
| Running events | Previous participation (yes/no) |
| Years of participation | |
| Average participations per year | |
| Year of last participation | |
| Distances of previous running events | |
| Lifestyle | Smoking (yes/no) |
| Alcohol consumption (average glasses per week) | |
| SQUASH questionnaire† | |
| Previous running-related injuries | Running-related injury in previous 12 months (yes/no) |
| Anatomical location (lower back/buttock/hip/groin/ventral thigh/dorsal thigh/knee/shin/calf/Achilles tendon/ankle/foot/toe) | |
| Diagnosis | |
| Onset (sudden/gradually) | |
| Duration of complaints (weeks) | |
| Still suffering injury (yes/no) | |
| Health complaints | Presence (yes/no, and if yes, which health complaints) |
*Asked for the averages over the last month and last year.
†Short questionnaire to assess health-enhancing physical activity, a validated questionnaire that measures health-enhancing physical activity in large populations.48 49