From: Impact on gait biomechanics of using an active variable impedance prosthetic knee
Speed (m/s) | Pre-string power (W/kg) | Initial string flexion power (W//kg) | String extension power (W/kg) | ||||
---|---|---|---|---|---|---|---|
Subject | C-Leg | VI Knee | C-Leg | VI Knee | C-Leg | VI Knee | |
1 | S2 | 0.12 ± 0.02 | 0.16 ± 0.01 * | −0.58 ± 0.05 | −0.41 ± 0.05 ⊛ | 0.01 ± 0.00 | 0.22 ± 0.10 * |
S3 | 0.09 ± 0.02 | 0.95 ± 0.27 * | −1.74 ± 0.29 | −3.12 ± 0.43 * | 0.20 ± 0.01 | 1.05 ± 0.08 * | |
S4 | 0.15 ± 0.03 | 0.32 ± 0.16 * | −0.66 ± 0.11 | −0.75 ± 0.10 | 0.14 ± 0.02 | 0.22 ± 0.03 * | |
S8 | 0.09 ± 0.04 | 0.48 ± 0.07 * | −0.83 ± 0.09 | −1.02 ± 0.09 * | 0.25 ± 0.04 | 0.98 ± 0.07 * | |
S11 | 0.08 ± 0.03 | 0.49 ± 0.23 * | −0.80 ± 0.09 | −1.11 ± 0.20 * | 0.19 ± 0.01 | 0.66 ± 0.06 * | |
1.25 | S2 | 0.11 ± 0.02 | 0.13 ± 0.00 * | −0.88 ± 0.16 | −0.69 ± 0.09 ⊛ | 0.01 ± 0.00 | 0.27 ± 0.02 * |
S3 | 0.13 ± 0.02 | 0.86 ± 0.17 * | −2.02 ± 0.11 | −3.52 ± 0.12 * | 0.20 ± 0.01 | 1.10 ± 0.07 * | |
S4 | 0.21 ± 0.10 | 0.27 ± 0.03 | −1.07 ± 0.26 | −1.10 ± 0.08 | 0.23 ± 0.01 | 0.28 ± 0.01 * | |
S8 | 0.20 ± 0.03 | 0.80 ± 0.12 * | −0.98 ± 0.08 | −1.21 ± 0.04 * | 0.38 ± 0.02 | 0.96 ± 0.09 * | |
S11 | 0.09 ± 0.01 | 0.84 ± 0.39 * | −1.47 ± 0.03 | −1.45 ± 0.27 | 0.18 ± 0.01 | 0.71 ± 0.01 * |