Metabolic Cost of Walking With Passive vs. Powered Prosthetic Knees Among Persons With Limb Loss
Loma Linda University
Summary
The purpose of this industry-initiated research study is to test that a powered microprocessor controlled knee improves metabolic function during walking in level and sloped conditions as compared to the subject's physician prescribed prosthesis.
Description
The Procedures include: Initial Visit: 1. Informed consent 2. HIPAA authorization 3. Determine/verify ambulation potential 4. Take and record body measurements (height, weight, circumferences) 5. Activities-Specific Balance Confidence (ABC) scale 6. L.A.S.A.R. Posture alignment assessment with RxPx Second Visit 1. Fit with heartrate monitor and metabolic analyzer mask 2. Treadmill Test (level-ground) with RxPx 3. Rest 4. Treadmill Test (incline) with RxPx 5. Fit subject with PMPK 6. L.A.S.A.R. Posture alignment assessment with PMPK 7. Subject uses PMPK for one week as their primary prosthe…
Eligibility
- Age range
- 18–75 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Males and Females with unilateral knee disarticulation or transfemoral (KD/TF) amputation. * a body mass greater than 49Kg and less than 117Kg * 18-75 years of age * Have an ambulation potential of K3 or K4 * Use a prosthesis daily for walking or sports activities * No less than six months of experience with a prosthesis * No socket issues or changes in the last six weeks * No residual limb pain affecting functional ability. Exclusion Criteria: * Cannot walk at different speeds (MCFL K0-K2) * Limb-loss below the knee or through the hip * More than one amputation. * Use…
Interventions
- OtherPowered Microprocessor-controlled Knee (PMPK)
A microprocessor-controlled Knee with standardized commercial prosthetic foot
Location
- Loma Linda UniversityLoma Linda, California