RecruitingNot ApplicableNCT05929508
Improving Mobility and Function Following Transfemoral Amputation: A Novel Approach to Reverse Volumetric Muscle Loss
Sponsor
University of Illinois at Chicago
Enrollment
30 participants
Start Date
Apr 1, 2024
Study Type
INTERVENTIONAL
Conditions
Summary
The purpose of this study is to investigate the relationship between thigh strength and walking ability and assess if using a blood pressure cuff on the leg improves strength and walking performance.
Eligibility
Min Age: 18 Years
Inclusion Criteria7
- At least 18 years old
- History of lower limb unilateral transfemoral amputation.
- At least two years post lower limb amputation
- Able to ambulate independently without the use of aids (i.e., walking cane).
- Able to walk at least 10 minutes continuously without stopping.
- Has a safe residuum with no open wounds on either the residual or intact limb.
- Has a prosthetic limb with materials that are sound and safe to withstand the mobility requirements of the study.
Exclusion Criteria16
- Younger than 18 years old.
- Inability to give informed consent.
- Neurological disorder that affects gait.
- Participants with significant metal (greater than one orthopaedic screw) in either the residual limb or the sound/intact limb
- Participants who begin taking medications or change dosage of medications that could affect gait, balance, and cardiovascular function during the course of the study.
- Currently pregnant (or intend to become pregnant while participating in study).
- History of any condition where fatiguing contractions or resisted leg contractions are contraindicated.
- Blood clots in the leg, or any condition in which compression of the thigh or transient ischemia is contraindicated (e.g. open wounds in the leg).
- History of uncontrolled hypertension.
- History of heart failure.
- Head injury within the previous 6 months.
- Seizure disorder.
- History of vascular disease.
- History of thrombosis.
- History of sickle cell trait.
- History of genetic disease
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Interventions
OTHERIschemic Preconditioning
A blood pressure cuff will be placed on the thigh of the intact/sound limb to restrict blood flow to the lower extremity for 5 minutes and then deflated for 5 minutes to allow for normal blood flow on a cycle for 50 minutes (5 times).
Locations(1)
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NCT05929508