Table 4. Temporal-distance gait measurements for the leading and trailing leg while crossing over obstacles heights of 10%, 20%, and 30% of subjects’ leg length.
| Crossing limb | Obstacle height | |||||
|---|---|---|---|---|---|---|
| 10% | 20% | 30% | ||||
| Lead | Trail | Lead | Trail | Lead | Trail | |
| Crossing speed †‡ | 61.2 ± 12.0 | 61.0 ± 12.7 | 55.3 ± 10.8 | 58.7 ± 12.3 | 47.5 ± 11.8 | 53.6 ± 11.9 |
| Step length | 105.5 ± 7.5 | 106.6 ± 9.2 | 106.0 ± 9.5 | 106.2 ± 9.8 | 105.0 ± 8.7 | 107.1 ± 8.0 |
| Heel clearance *†‡ | 11.7 ± 3.0 | 32.9 ± 4.4 | 11.4 ± 2.9 | 32.1 ± 5.6 | 11.5 ± 3.7 | 31.5 ± 5.6 |
| Peak heel clearance *†‡ | 36.3 ± 4.5 | 44.7 ± 4.4 | 43.5 ± 4.6 | 52.7 ± 5.0 | 48.6 ± 5.2 | 60.5 ± 5.3 |
| Toe clearance * | 14.5 ± 3.1 | 16.2 ± 3.9 | 14.2 ± 2.6 | 15.8 ± 5.1 | 14.0 ± 3.1 | 15.8 ± 4.5 |
| Peak toe clearance *‡ | 25.9 ± 3.5 | 27.6 ± 4.2 | 33.7 ± 3.0 | 35.3 ± 5.1 | 41.1 ± 3.1 | 43.0 ± 4.8 |
* p-values (<0.05) for the variables of leading and trailing leg while negotiating an obstacle height adjusted to 10% of leg length; paired sample t-test. † p-values (<0.05) for the variables of leading and trailing leg while negotiating an obstacle height adjusted to 20% of leg length, paired sample t-test. ‡ p-values (<0.05) for the variables of leading and trailing leg while negotiating an obstacle height adjusted to 30% of leg length, paired sample t-test.