Table 2.
Magnitude of kinematic and kinetic parameters
| Variable | PD-off | PD-on | Control |
|---|---|---|---|
| Peak hip flexor moment (Nm/kg) | 0.26 (0.23) | 0.28 (0.21) | 0.24 (0.09) |
| Peak hip extensor moment (Nm/kg) | 0.40 (0.17) | 0.42 (0.23) | 0.42 (0.22) |
| Peak knee extensor moment (Nm/kg) | 0.94 (0.12) | 1.02 (0.22) | 1.13 (0.20)c |
| Peak ankle dorsiflexor moment (Nm/kg) | 0.11 (0.005) | 0.13 (0.009) | 0.11 (0.005) |
| Hip flexion angular displacement (°) | 23.6 (10.0) | 21.5 (14.0) | 17.0 (8.6)a |
| Hip extension angular displacement (°)* | 60.2 (15.6) | 54.7 (23.3) | 56.5 (15.7)a |
| Knee extension angular displacement (°) | 76.8 (7.1) | 76.7 (6.5) | 75.3 (7.3) |
| Ankle dorsiflexion angular displacement (°) | 7.9 (2.4) | 6.9 (1.2) | 7.5 (3.7) |
| Ankle plantarflexion angular displacement (°) | 12.9 (4.2) | 12.7 (4.3) | 15.0 (2.6)b |
| COM displacement - preparation phase (cm) | 13.6 (1.8) | 14.2 (1.4) | 12.6 (1.9)c |
| COM displacement – lift-off phase (cm) | 11.1 (2.4) | 10.4 (2.2) | 12.5 (1.8)c |
a
control group different from the PD-off group, Tukey’s Test, p < 0.05
b
control group different from the PD-on group, Tukey’s Test, p < 0.05
c
control group different from the PD-on/PD-off groups, Tukey’s Test, p < 0.05
*
hip motion was between the pelvis and thigh segment (i.e., not trunk and thigh)