Related Experiment Video
Updated: Sep 13, 2025
08:24
Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
Published on: August 30, 2016
10.3K
Single Camera-Based Gait Analysis Using Pose Estimation for Ankle-Foot Orthosis Stiffness Adjustment on Individuals
Masataka Yamamoto1, Koji Shimatani2, Daisuke Matsuura3
1Department of Mechanical and Aerospace EngineeringTokyo University of Science Noda Chiba 278-8510 Japan.
Summary
Adjusting ankle-foot orthosis (AFO) stiffness improves stroke patient gait. Markerless analysis accurately measures improvements in gait speed and parameters, showing AFO effectiveness.
Area of Science:
- Biomedical Engineering
- Rehabilitation Science
- Clinical Biomechanics
Background:
- Stroke frequently causes gait impairment, necessitating assistive devices like ankle-foot orthoses (AFOs).
- Optimizing AFO stiffness is crucial for enhancing gait function in stroke survivors, but clinical measurement challenges persist.
Purpose of the Study:
- To evaluate the impact of AFO stiffness adjustment on gait ability in stroke patients.
- To validate a markerless gait analysis technique for assessing AFO effectiveness.
Main Methods:
- Thirty-two stroke participants walked with no AFO and AFOs of varying stiffness levels.
- Markerless gait analysis using RGB images measured spatiotemporal parameters like gait speed, cadence, and step length.
- Individual optimal AFO stiffness conditions were identified and compared.
Main Results:
- Significant improvements in gait speed, cadence, and step length were observed with optimal AFO stiffness.
- Markerless analysis effectively captured gait parameter changes.
- The study confirmed the benefits of personalized AFO stiffness adjustment.
Conclusions:
- Personalized AFO stiffness adjustment significantly enhances gait in stroke patients.
- Markerless gait analysis is a viable and effective tool for clinical assessment in rehabilitation settings.
- This approach facilitates objective evaluation and optimization of AFO interventions for improved mobility.
