Table 2.
Gait data on repeat measured time points in Phase 1 while subjects adapt to the new prosthetic foot.
| Gait variables | T0 | T1 | T2 | Friedman tests χ2(2), p value |
T0-T1 | T1-T2 |
|---|---|---|---|---|---|---|
| Gait Speed (m/s) | 1.18 (1.00-1.28) | 1.16 (1.00-1.26) | 1.11 (0.85-1.21) | 8.000, 0.018∗ | 0.499 | 0.018∗ |
| Cadence (step/min) | 95.6(87.3-107.4) | 98.8 (86.9-109.2) | 98.8(75.2-108.4) | 7.185, 0.028∗ | 0.063 | 0.028 |
| Step Length A (%) | 53.4 (50.3-54.0) | 51.0 (48.4-54.6) | 50.5 (48.5-54.3) | 0.286, 0.867 | ||
| Step Length S (%) | 46.6 (46.0-49.7) | 49.0 (48.4-51.6) | 49.5 (45.7-51.5) | 0.286, 0.867 | ||
| Stance Phase A (%) | 58.4 (56.0-61.4) | 59.7 (54.8-60.2) | 61.9 (56.3-63.8) | 3.714, 0.156 | ||
| Stance Phase S (%) | 61.4 (57.6-67.6) | 60.2 (58.5-66.6) | 61.0 (56.3-63.8) | 0.000, 1.000 | ||
| Swing Phase A (%) | 41.6 (38.6-44.0) | 40.3 (39.8-45.2) | 38.1 (36.2-43.7) | 3.714, 0.156 | ||
| Swing Phase S (%) | 38.6 (32.4-42.4) | 39.8 (33.4-41.5) | 39.0 (31.0-42.2) | 0.000, 1.000 | ||
| Double Support A (%) | 10.6 (8.2-11.2) | 9.2 (7.1-13.4) | 12.1 (8.6-14.5) | 3.429, 0.180 | ||
| Double Support S (%) | 8.6 (7.3-17.0) | 10.0 (7.3-11.7) | 11.7 (7.8-16.2) | 8.615, 0.013∗ | 0.892 | 0.018∗ |
| Single Support A (%) | 38.1 (33.6-41.6) | 39.9 (33.4-42.3) | 38.0 (30.8-42.1) | 0.286, 0.867 | ||
| Single Support S (%) | 41.5 (38.8-44.5) | 40.6(39.8-45.3) | 38.1 (36.3-44.1) | 3.714, 0.156 |
Median value (25th-75th percentiles value), ∗p<0.05.
T0: immediately after fitting the interventional foot, T1: half an hour, T2: one hour.
A: affected side, S: sound side.