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| Age | Height | Mass | KFA** | ||
|---|---|---|---|---|---|
| N* | (years) | (m) | (kg) | (deg) | |
| Typically-Developing | 3 | 12 ± 2 | 1.4 ± 0.0 | 38 ± 5 | 2 ± 1 |
| Mild | 3 | 9 ± 1 | 1.2 ± 0.1 | 24 ± 4 | 18 ± 3 |
| Moderate | 3 | 11 ± 2 | 1.4 ± 0.1 | 43 ± 31 | 34 ± 2 |
| Severe | 3 | 14 ± 2 | 1.6 ± 0.1 | 42 ± 8 | 64 ± 20 |
*N, Number of participants in each group
**KFA, Minimum knee flexion angle during stance
