Understanding How Powered Componentry Impacts K2-Level Transfemoral Amputee Gait

Description

The goal of this study is to understand how providing power at the knee or ankle individually, or providing power at both the knee and ankle, impacts ambulation for K2 level transfemoral amputees. Aim 1: measure functional performance of K2 level ambulators when using a commercially available passive microprocessor knee prosthesis (Ottobock Cleg/Ottobock foot) or a powered knee and ankle prosthesis (SRALab Hybrid Knee and SRAlab Polycentric Powered Ankle. Aim 2: Participants will be evaluated on the contribution of adding power at the knee only or the ankle only. Aim 3: The investigators will evaluate the functional performance after intensive clinical gait training on the powered knee and ankle prosthesis (SRALab Hybrid Knee and SRALab Polycentric Powered Ankle). Our hypothesis is that providing powered componentry will improve function and that intensive training will magnify those improvements.

Conditions

Amputation, Amputation, Traumatic, Amputation of Knee, Amputation; Traumatic, Limb

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Study Overview

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Study Details

Study overview

The goal of this study is to understand how providing power at the knee or ankle individually, or providing power at both the knee and ankle, impacts ambulation for K2 level transfemoral amputees. Aim 1: measure functional performance of K2 level ambulators when using a commercially available passive microprocessor knee prosthesis (Ottobock Cleg/Ottobock foot) or a powered knee and ankle prosthesis (SRALab Hybrid Knee and SRAlab Polycentric Powered Ankle. Aim 2: Participants will be evaluated on the contribution of adding power at the knee only or the ankle only. Aim 3: The investigators will evaluate the functional performance after intensive clinical gait training on the powered knee and ankle prosthesis (SRALab Hybrid Knee and SRALab Polycentric Powered Ankle). Our hypothesis is that providing powered componentry will improve function and that intensive training will magnify those improvements.

Understanding How Powered Componentry Impacts K2-Level Transfemoral Amputee Gait

Understanding How Powered Componentry Impacts K2-Level Transfemoral Amputee Gait

Condition
Amputation
Intervention / Treatment

-

Contacts and Locations

Chicago

Shirley Ryan AbilityLab, Chicago, Illinois, United States, 60611

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Ages 18-95
  • * A unilateral transfemoral amputation
  • * At least 6 months since definitive prosthesis fitting
  • * Able to walk 50 meters (55 yards) with a prosthesis without the assistance of another person.
  • * Medically cleared by physician to participate in study
  • * English speaking
  • * Weight greater than 250 pounds
  • * Significant new injury that would prevent use of a prosthesis: The ability to consistently wear a prosthesis and perform activities of daily living and specific performance tasks is necessary to evaluate the relative benefits of the interventions.
  • * Cognitive impairment sufficient to adversely affect understanding of or compliance with study requirements, ability to communicate experiences, or ability to give informed consent: The ability to understand and comply with requirements of the study is essential in order for the study to generate useable, reliable data. The ability to obtain relevant user feedback through questionnaires and informal discussion adds significant value to this study.
  • * Significant other comorbidity: Any other medical issues or injuries that would preclude completion of the study, use of the prostheses, or that would otherwise prevent acquisition of useable data by researchers.

Ages Eligible for Study

18 Years to 95 Years

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

No

Collaborators and Investigators

Shirley Ryan AbilityLab,

Study Record Dates

2029-06-30