Table 2.
Comparison for gait analysis data between XLH patients and the control group.
| XLH patients (n=34 limbs) | Control (n = 24 limbs) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Min | Max | Mean | SD | Min | Max | P value | |
| Cadence (steps/min) | 109.6 | 7.9 | 92.3 | 122.2 | 115.9 | 8.5 | 99.1 | 138.6 | .006 |
| Step width (m) | 0.112 | 0.042 | 0.039 | 0.183 | 0.080 | 0.022 | 0.026 | 0.149 | <.001 |
| Walking speed normalized (m/s) | 1.0 | 0.196 | 0.510 | 1.3 | 1.3 | 0.133 | 0.946 | 1.8 | <.001 |
| Ankle ROM (df/pf; deg) | 27.9 | 3.4 | 22.9 | 35.4 | 34.8 | 5.5 | 22.6 | 50.5 | <.001 |
| Maximum ankle dorsiflexion (deg) | 16.3 | 3.5 | 9.0 | 23.4 | 14.5 | 3.3 | 6.1 | 21.7 | 0.006 |
| Ankle moment (df/pf; Nm/kg) | 1.2 | 0.3 | 0.4 | 1.7 | 1.6 | 0.135 | 1.2 | 2.0 | <.001 |
| Ankle power maximal value stance phase (W/kg) | 2.5 | 0.9 | 0.7 | 4.2 | 3.9 | 0.642 | 2.0 | 6.0 | <.001 |
| Gait Deviation Index | 69.7 | 17.4 | 40.8 | 101.1 | 100 | <.001 | |||
| Gait Posture Score | 8.7 | 3.2 | 4.6 | 16.5 | 3.9 | 0.789 | 2.3 | 7.0 | <.001 |
**XLH, X-linked hypophosphatemia; SD, standard deviation; Min, minimum; Max, maximum; deg, degrees. The p values are for comparison of study population and control group data. In the sagittal plane: positive values = anterior (ant)/dorsiflexion (df)/extension (ext) and negative values = posterior (post)/plantarflexion (pf)/flexion (flex).