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Does Walking Performance Improve When Veterans With Leg Amputations Are Given Visual Feedback?

NCT03974945 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 12

Last updated 2025-07-15

Study results available
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Summary

Previous studies suggest that Veterans with below the knee amputation using passive-elastic or powered prostheses have impaired physical function, which could increase the risk of osteoarthritis, leg/back pain, and diabetes/obesity. Utilization of rehabilitation strategies/techniques such as real-time visual feedback training could restore physical function, increase physical activity, and reduce injury risk. The investigators will systematically determine the effects of using real-time visual feedback training of peak propulsive (push-off) force during walking while Veterans with below the knee amputations use a passive-elastic and battery-powered prosthesis. Similar to previous studies of non-amputee older (\>65 years) and post-stroke adults, use of real-time visual feedback training of propulsive force will likely improve walking function in Veterans with amputations. Such training presents a promising rehabilitation strategy that could reduce comorbidities, while improving quality of life, comfort, and physical function, and advancing rehabilitation research and prosthetic development.

Conditions

  • Amputation

Interventions

DEVICE

Passive-elastic prosthetic foot

The investigators will measure the biomechanics (motion, forces, and muscle activity) and metabolic rates while subjects walk using their own passive-elastic prosthesis with and without visual feedback of peak propulsive force targets.

DEVICE

Powered ankle-foot prosthesis

The investigators will measure the biomechanics (motion, forces, and muscle activity) and metabolic rates while subjects walk using a battery-powered ankle-foot prosthesis with and without visual feedback of peak propulsive force targets.

Sponsors & Collaborators

  • VA Office of Research and Development

    lead FED

Principal Investigators

  • Alena Grabowski, PhD BA · Rocky Mountain Regional VA Medical Center, Aurora, CO

Eligibility

Min Age
18 Years
Max Age
67 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-08-01
Primary Completion
2024-05-14
Completion
2024-05-14

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03974945 on ClinicalTrials.gov