Table 2.
Differences between even and uneven surface in the relative full width at half maximum (FWHM) of the EMG activities mapped onto the estimated rostrocaudal location of the spinal cord (segments L2 to S3).
| Segment | Walking | Running | |||||
|---|---|---|---|---|---|---|---|
| Stance p = 0.002* | Swing p = 0.011* | Stance p = 0.119 | Swing p < 0.001* | ||||
| ΔE,U | p-value | ΔE,U | p-value | ΔE,U | ΔE,U | p-value | |
| L2 | −0.6% | 0.610 | +2.0% | 0.279 | +1.2% | +0.1% | 0.070 |
| L3 | −0.6% | 0.610 | +2.0% | 0.279 | +1.2% | +2.7% | 0.070 |
| L4 | +1.2% | 0.252 | +1.8% | 0.315 | +0.8% | +2.7% | <0.001* |
| L5 | +1.2% | 0.252 | +1.8% | 0.315 | +0.8% | +7.3% | <0.001* |
| S1 | +1.2% | 0.252 | +1.8% | 0.315 | +0.8% | +7.3% | <0.001* |
| S2 | +0.1% | 0.942 | −1.0% | 0.552 | −1.0% | +4.4% | 0.003* |
| S3 | +5.9% | <0.001* | +2.5% | 0.133 | +3.4% | +2.0% | 0.172 |
Positive differences (ΔE,U > 0) denote bigger values in the uneven surface condition, whereas negative differences imply lower values.