Cohort characteristics (N=171)
| Characteristic | N | Mean | ±SD | (Range) |
| Age at US (years; mean±SD) | 171 | 22.2 | ±9.86 | (12–63.8) |
| Height (cm) | 168 | 165.2 | 7.3 | (147.8–186) |
| Weight (kg) | 168 | 62.2 | 11.77 | (33.4–101.8) |
| BMI | 168 | 22.7 | 3.54 | (15.3–35.7) |
| Beighton score | 164 | 4.9 | ±2.45 | (0–9) |
| Hypermobility (frequency, %) | 171 | 89 | (52%) | |
| Primary sport | N | Frequency | (%) | |
| Performing arts | 171 | 72 | (42%) | |
| Cutting | 171 | 33 | (19%) | |
| Recreational fitness | 171 | 20 | (12%) | |
| Squatting | 171 | 20 | (12%) | |
| Upright | 171 | 26 | (15%) |
US, ultrasound.