Determining the Potential Benefit of Powered Prostheses
Overview
- Phase
- N/A
- Intervention
- Not specified
- Conditions
- Unilateral Traumatic Amputation
- Sponsor
- Deanna H Gates
- Enrollment
- 12
- Locations
- 1
- Primary Endpoint
- Metabolic Cost of Walking
- Status
- Completed
- Last Updated
- 4 years ago
Overview
Brief Summary
The goal of this research is to determine the effectiveness of a powered prosthesis compared to an unpowered prosthesis during short bouts of walking, extended periods of walking (to fatigue), and performance in the community.
Detailed Description
Many individuals are living in the United States with limb loss. With the use of a prosthetic device many individuals can stay active, but most do not achieve a medically desired physical activity level. This creates a risk for cardiovascular disease. It is thought that individuals with amputation walk less because it is more difficult to get around, and recent advances in robotic prosthetic technology may make such activities easier. However, these prostheses have not yet been evaluated to determine their effectiveness during extended periods of walking. Despite the goals in design of new devices it is unclear whether individuals using them are able to incorporate them into making daily activities easier. Therefore, the goal of this research is to determine the effectiveness of a powered prosthesis compared to an unpowered prosthesis during long periods of walking.
Investigators
Deanna H Gates
Assistant Professor
University of Michigan
Eligibility Criteria
Inclusion Criteria
- •Adult (over 21 years old), Has unilateral transtibial amputation, has used prosthesis for at least 6 months, is currently using an unpowered prosthesis, can walk unassisted for at least 10 minutes
Exclusion Criteria
- •History of orthopedic or neurologic disorders to their intact limb, history of cardiovascular disease that prevents them from safely completing requested activities, unable to walk for 30 minutes at a time
Outcomes
Primary Outcomes
Metabolic Cost of Walking
Time Frame: Testing took place after wearing the prostheses for two weeks
Metabolic costs will be measured using a portable metabolic system when participants walk on a treadmill at a fixed speed.
Total Steps Outside the Home Over a Two Week Period
Time Frame: 2 weeks
Activity data we be collected using activity monitors and GPS with both the regular prosthesis and the powered ankle prosthesis. Each activity monitoring period will last 2 weeks and will be done within in a 2 month period. Daily step count taken outside of the home, determined using an activity monitor and GPS device
Quality of Life (QoL) on a Short-Form 36
Time Frame: Questionnaire completed 2 weeks after wearing each prosthesis
Participants completed the Medical Outcomes Study 36 Items Short-Form Health Survey (SF-36) after each condition. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability.
Secondary Outcomes
- Time to Fatigue(Testing took place after wearing the prostheses for two weeks)
- Prosthetic Evaluation Questionnaire (PEQ)(Questionnaire completed 2 weeks after wearing each prosthesis)
- Muscle Activity in the Lower Limb(Testing took place after the participant wore the prosthesis for 2 weeks)