Evaluating Mobility Interventions in the Real World

University of Wisconsin, Madison1 site in 1 country20 target enrollmentSeptember 3, 2021

ConditionsLower Limb Amputation Drop Foot

Overview

Phase: N/A
Intervention: Not specified
Conditions: Lower Limb Amputation
Sponsor: University of Wisconsin, Madison
Enrollment: 20
Locations: 1
Primary Endpoint: Minimum Foot Clearance With Different Prostheses
Status: Completed
Last Updated: 4 months ago

Overview Investigators Eligibility Criteria Outcomes Sites Similar Trials

Overview

Brief Summary

This study is intended to test the comparative biomechanical benefits of different lower-limb prostheses and orthoses using data collected over extended periods of everyday life using wearable sensors. Investigators seek to improve physical health, functional activity level, independence, workforce participation, and mental health in participants with lower limb amputation and other lower-limb impairments. Investigators seek to study the similarities and differences in participants' movement using prostheses and orthoses with different technological features or designs. Study team also seek to develop technologies that enhance the methods for using wearable sensor technology to perform this type of study.

Participants with lower-limb amputation, participants who use lower limb orthoses, and participants with drop-foot (including a specific group with Multiple Sclerosis).

Registry

clinicaltrials.gov

Start Date

September 3, 2021

End Date

August 1, 2024

Last Updated

4 months ago

Study Type

Interventional

Study Design

Parallel

Sex

All

Investigators

Sponsor

University of Wisconsin, Madison

Responsible Party

Sponsor

Eligibility Criteria

Inclusion Criteria

•Target Populations:
•Participants with amputation must have used a prosthesis for more than 6 months, and wear it for at least 8 hours per day.
•Participants must be more than 6 months past their most recent surgery (if any).
•Participants must be free of musculoskeletal and cardiovascular conditions that would limit their ability to safely complete testing.
•Participants should consider themselves in good health; be able to wear their prostheses or orthoses all day long; be able to perform all of their activities of daily living (ADL) with their prostheses or orthoses as appropriate; have a comfortably fitting functional prosthesis (if applicable) that does not cause any skin problems; and have a stable residual limb (or impaired limb).
•Participants may use a narrow-base cane (single point, narrow tripod base, etc.) as an ambulatory aid but not a small-base quad cane or walker.
•Participants must be able to walk with their prostheses or orthoses for 30 minutes (total) and stand for 30 minutes (total), in individual bouts of at least 6 minutes, without becoming fatigued, feeling dizzy, having chest pain or shortness of breath, or experiencing claudication symptoms.
•Participants involved in running tests must be able to run for 30 minutes (total) in bouts of at least 6 minutes, without becoming fatigued, feeling dizzy, having chest pain, or experiencing claudication symptoms.
•Participants must have no known cognitive disability.
•Participants must be fluent in spoken and written English.

Exclusion Criteria

•Target Populations:
•Allergy to electrode gel, surgical tape and metals.
•Participants who currently use the Bioness L300 Go or similar neuro-orthoses or use a carbon fiber ankle-foot orthosis at the time of the study will be excluded to avoid biasing results for one device or the other. Participants with past experience not currently using these devices will be eligible.
•Participants enrolled in physical therapy or other rehabilitative care for treatment of gait, balance, or lower extremity strength or coordination at the time of the study will be excluded to avoid confounding effects from therapy and device-based management of their condition.
•For the orthotics study, participants with peripheral neuropathy impacting control of the tibialis anterior muscle via the peroneal nerve will be excluded.
•Participants under treatment for infectious diseases will be excluded from the study.
•Women who are pregnant or planning to become pregnant during the course of the study will be excluded.
•Symptomatic musculoskeletal conditions that prevent unaided walking, such as back pain or knee arthritis.
•Cardiovascular conditions that make moderate exercise unsafe, including (but not limited to) history of angina, peripheral vascular disease, congestive heart failure, history of myocardial infarction, and history of stroke. Potential participants will be excluded if they self-report that a physician has told them to avoid moderate exercise.
•History of chest pain, shortness of breath, or claudication symptoms during ambulation

Outcomes

Primary Outcomes

Minimum Foot Clearance With Different Prostheses

Time Frame: Weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study

Minimum Foot Clearance with different prostheses, participants crossover to each of 4 different conditions at different study visits, data collected up to 12 weeks on study.

Minimum Foot Clearance With Different Orthoses

Time Frame: Baseline, 10 days, and 20 days for Orthotic interventions

Minimum Foot Clearance with different orthoses, participants crossover to each of 3 different conditions at different study visits, data collected up to 20 days on study.

Secondary Outcomes

Behavioral Gait Function as Measured From Daily Stride Count(Weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)
Behavioral Gait Function as Measured From Stride Speed During Walking Bouts of Different Durations(Weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)
Prosthetic Limb Users Survey of Mobility Score(up to 12 weeks)
Change in Movement Quality as Determined by Stride Width: Prosthesis(Weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)
Change in Movement Quality as Determined by Stride Width: Orthoses(Baseline, 10 days, and 20 days for Orthotic interventions)
Change in Gait Performance as Determined by Average Speed(Weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)
Gait Performance as Determined by Stride Frequency at Identical Speed(Weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)
Change in Gait Performance as Determined by Ground Reaction Forces(Baseline, 10 days, and 20 days for Orthotic interventions, weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)
Change in Gait Performance as Determined by Socket Torques(Baseline, 10 days, and 20 days for Orthotic interventions, weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)
Change in Functional Gait Assessment Score(Baseline, 10 days, and 20 days for Orthotic interventions)
Change in 6 Minute Walking Test Distance(Baseline, 10 days, and 20 days study visits to test conditions for Orthotic interventions)
Stride Length at Identical Walking Speed(Weekly time points for Prosthetic interventions (baseline, 1, 2, 3, and 4 weeks), data collected anytime up to 12 weeks on study)