From: Non-weight-bearing neural control of a powered transfemoral prosthesis
 | Knee F/E and ankle DF/PF | Knee F/E, femoral rotation, ankle DF/PF and ankle rotation | |||
---|---|---|---|---|---|
Performance metric | Amputee | Control | Amputee | Control | |
 |  | (n = 6) | (n = 6) | (n = 6) | (n = 6) |
Classification accuracy, % | |||||
Overall | Â | 90.7 (6.4) | 91.2 (5.5) | 88.0 (3.9) | 90.8 (4.7) |
Hip/Knee | Â | 88.5 (10.9) | 98.8 (2.0) | 86.3 (9.3) | 96.8 (2.7) |
Ankle | Â | 88.1 (10.2) | 81.4 (18.5) | 86.3 (5.8) | 87.2 (7.9) |
Motion selection time, s | |||||
Overall | Â | 0.36 (0.17) | 0.38 (0.21) | 0.70 (0.41) | 0.58 (0.32) |
Hip/Knee | Â | 0.46 (0.28) | 0.33 (0.15) | 0.51 (0.35) | 0.57 (0.34) |
Ankle | Â | 0.25 (0.14) | 0.47 (0.53) | 0.88 (0.85) | 0.58 (0.46) |
Motion completion time, s | |||||
Overall | Â | 2.06 (0.56) | 1.74 (0.52) | 2.62 (0.67) | 1.95 (0.55) |
Hip/Knee | Â | 2.00 (0.85) | 1.30 (0.14) | 2.27 (0.63) | 1.54 (0.34) |
Ankle | Â | 2.14 (0.57) | 2.23 (1.06) | 3.00 (0.87) | 2.40 (0.88) |
Motion completion percentage, % | |||||
Overall | Â | 97.7 (3.2) | 96.3 (7.8) | 90.3 (6.8) | 96.5 (5.5) |
Hip/Knee | Â | 100.0 (0) | 100.0 (0) | 95.8 (7.0) | 100.0 (0) |
Ankle | Â | 95.4 (6.5) | 92.6 (15.6) | 84.7 (11.1) | 93.1 (11.1) |