Phase relationships among legs during unperturbed and perturbed running
| Unperturbed | During perturbation | P | After perturbation | P | |
|---|---|---|---|---|---|
| Ipsilateral legs | |||||
| Left front in left middle | 52±5 (8) | 52±7 (5) | 0.87 | 53±5 (8) | 0.89 |
| Left middle in left hind | 48±4 (8) | 45±3 (5) | 0.19 | 47±3 (7) | 0.73 |
| Right front in right middle | 53±6 (8) | 56±4 (5) | 0.33 | 50±8 (7) | 0.51 |
| Right middle in right hind | 45±3 (8) | 45±3 (3) | 0.84 | 46±8 (7) | 0.67 |
| Contralateral legs | |||||
| Left front in right front | 50±5 (8) | 48±6 (5) | 0.56 | 51±4 (6) | 0.72 |
| Left middle in right middle | 51±3 (8) | 50±3 (6) | 0.54 | 48±6 (7) | 0.27 |
| Left hind in right hind | 48±2 (8) | 50±7 (4) | 0.54 | 52±5 (7) | 0.09 |
`Left front in left middle' indicates that the value corresponds to the phase during the step cycle of the left middle leg (touchdown-to-touchdown) at which the left front leg touches down and begins stance. For this comparison, the left middle leg is the `reference leg'. The leg listed second is the reference leg for each comparison.
Values are percentages of the stride period of the reference leg.
Numbers in parentheses indicate the number of samples used in the comparison.