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Real-time Motion Capture and Visual Feedback for Amputation Gait Training

Taiwan40 participantsStarted 2025-07-15

Plain-language summary

People with transfemoral amputation face challenges such as gait asymmetry, instability, and increased energy consumption due to loss of the knee joint. Because of the loss of proprioceptive feedback from their missing limbs, visual feedback is essential for gait correction. Additionally, current visual feedback systems lack portability, cost-effectiveness, and they fail to provide precise, intuitive feedback on spatiotemporal parameters, joint angles, and both frontal and sagittal plane information, limiting their effectiveness in correcting gait abnormalities.This study aims to investigate whether gait training using a real-time 2D motion capture and visual feedback gait training system (2DMV) can improve the gait biomechanics and psychosocial functions of people with unilateral transfemoral amputation (uTFA). The 2DMV system analyzes spatiotemporal parameters and joint kinematics during gait and displays the uTFA's image on a screen, providing visual feedback specifically targeting gait abnormalities. This allows individuals with uTFA to intuitively understand the feedback and make real-time gait adjustments. The biomechanical parameters include joint kinematics, gait symmetry, and walking performance.

Who can participate

Age range18 Years – 65 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Age between 18 and 65 years * Individuals with unilateral transfemoral amputation or knee disarticulation * Wear a prosthesis for at least 3 hours per day * Have been using a prosthesis for more than 6 months * Medicare Functional Classification Level (K-level) of 2 or above * Able to walk independently for 5 meters without assistive devices * No pain caused by poor prosthetic fit * Montreal Cognitive Assessment Taiwan Version (MoCA-T) score ≥ 26 Exclusion Criteria: * Uncontrolled systemic diseases (e.g., diabetes mellitus, hypertension) * Cardiopulmonary or cardiovascular diseases (e.g., heart failure, severe asthma) * History of neurological conditions that affect movement (e.g., stroke, spinal cord injury, cerebellar injury) * Vestibular disorders * Severe osteoporosis * Other musculoskeletal injuries or open wounds * Epilepsy * Uncorrected visual impairments * Congenital limb deficiency

What they're measuring

Step width ratio

Timeframe: The step width ratio will be measured at Day 1, before the 1st intervention session, and after the 12th intervention session.

Step length ratio

Timeframe: The step length ratio will be measured at Day 1, before the 1st intervention session, and after the 12th intervention session.

Stride time ratio

Timeframe: The stride time ratio will be measured at Day 1, before the 1st intervention session, and after the 12th intervention session.

Stance time ratio

Timeframe: The stance time ratio will be measured at Day 1, before the 1st intervention session, and after the 12th intervention session.

Swing time ratio

Timeframe: The swing time ratio will be measured at Day 1, before the 1st intervention session, and after the 12th intervention session.

Hip extension angle

Timeframe: The hip extension angle will be measured at Day 1, before the 1st intervention session, and after the 12th intervention session.

Hip flexion angle

Timeframe: The hip flexion angle will be measured at Day 1, before the 1st intervention session, and after the 12th intervention session.

Trial details

NCT IDNCT07049198

SponsorNational Yang Ming Chiao Tung University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-07-10

Contact for this trial

Hui-Ting Shih

+886 921 078 256 huiting.shih@nycu.edu.tw

View on ClinicalTrials.gov More Unilateral Transfemoral Amputation trials