Traumatic Amputation of Lower Extremity
Conditions
Brief summary
The proposed study aims to characterize biological ankle joint function during walking and running on slopes in order to further develop advanced powered ankle-foot prostheses. Ankle joint torque and angle data will be collected from non-amputees while walking and running at multiple speeds and slopes. This data will be used to develop control parameters for a powered ankle-foot prosthesis. Then, these parameters will be implemented and tested in a powered prosthesis worn by people with below the knee amputations.
Interventions
Sponsors
VA Eastern Colorado Health Care System
Study design
Observational model
OTHER
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
Study 1: \- Between 18-60 years old. Study 2 and 3: * Between 18-60 years old. * At least 1 year post-amputation * no current problems with prosthesis or residual limb * At least a K3 level of ambulation Study 4: \- Between 18-45 years old Study 5: * Between 18-45 years old * At least 1 year post-amputation * no current problems with prosthesis or residual limb * Experience running with a passive prosthesis * At least a K4 level of ambulation
Exclusion criteria
Studies 1-5 * Cardiovascular, pulmonary, or neurological disease or disorder * Musculoskeletal injury
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Force-measuring treadmill and motion capture | approximately 2 months |
| Metabolic analysis system | approximately 2 months |
Countries
United States
Outcome results
None listed