Table 1.
Participant information
| Subject | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Gender | Male | Male | Male | Male | Female |
| Height | 1.8 m | 1.8 m | 1.7 m | 1.8 m | 1.7 m |
| Body Weight | 69 kg | 94 kg | 61 kg | 69 kg | 49 kg |
| Age | 24 years | 59 years | 27 years | 19 years | 52 years |
| Time since Amputation | 7 years | 47 years | 4 years | 19 years | 27 years |
| Reason for Amputation | Cancer | Cancer | Trauma | Congenital | Trauma |
| Side of Amputation | Right transfemoral amputation | Left transfemoral amputation | Right knee disarticulation | Left transfemoral amputation | Right transfemoral amputation |
| Prescribed Prosthesis | Genium (Ottobock, 1.7 kg) | Genium (Ottobock, 1.7 kg) | Plie 3 (Freedom Innovations, 1.2 kg) | Rheo Knee (Ossur, 1.6 kg) | Power Knee (Ossur, 3.2 kg) |
| Time with Current Prosthesis | 6 years | 3 years | 3 years | 6 months | 5 years |
| Physical Therapy Post-amputation | 2 months | 6 months | 9 months | None | 3 or more months |
| Suspension | Double-wall with pin to outer socket | Ischial containment suction | Shuttle lock, 3–5-ply socks, window socket with lanyard | Suction | Vacuum |
| Self-reported Functional K-level | 3 | 3 | 3 | 4 | 3 |
| Self-selected Walking Speed with Each Prosthesis | Prescribed: 0.8 m/s Powered: 0.8 m/s | Prescribed: 0.8 m/s Powered: 0.8 m/s | Prescribed: 0.9 m/s Powered: 0.7 m/s | Prescribed: 0.5 m/s Powered: 0.7 m/s | Powered (i.e. prescribed): 0.5 m/s |
The listed prescribed prosthesis for Subjects 1–4 are energetically-passive knee prostheses. Subject 5 wore a powered prosthesis daily and was only tested with the powered prosthesis