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Wireless prototype based on pressure and bending sensors for measuring gait [corrected] quality
Florent Grenez1, María Viqueira Villarejo, Begoña García Zapirain
1Computer Science Department, ICAM University, Lille, France. florent.grenez@orange.fr
Sensors (Basel, Switzerland)
|August 1, 2013
Summary
This study developed a smart shoe with sensors to monitor gait quality. The system accurately distinguishes between healthy and pathological gaits, paving the way for advanced diagnostic tools.
Area of Science:
- Biomedical Engineering
- Rehabilitation Technology
- Wearable Sensors
Background:
- Gait analysis is crucial for diagnosing and monitoring various neurological and musculoskeletal conditions.
- Existing gait analysis methods can be complex, expensive, and limited in real-world application.
- There is a need for accessible, accurate, and portable solutions for gait assessment.
Purpose of the Study:
- To develop and validate a novel sensor-based system for remote monitoring and evaluation of gait quality.
- To differentiate between healthy and pathological gait patterns using a wearable sensor prototype.
- To lay the foundation for a more comprehensive technological solution for gait analysis.
Main Methods:
- A custom shoe prototype was designed, integrating three pressure sensors (metatarsals, heel) and two bending sensors (ankle, foot sole).
- The hardware incorporated an Arduino mini microcontroller and a Bluetooth module for data transmission.
- Digital signal processing was employed, calculating standard deviation and empirically derived thresholds for analysis.
Main Results:
- The developed prototype achieved high accuracy rates, ranging from 85% (metatarsal sensor) to 100% (heel and bending sensors).
- The system successfully parameterized gait variables, including pressure distribution and joint movements.
- The sensor system demonstrated the ability to effectively distinguish between healthy and pathological gait patterns.
Conclusions:
- The developed sensor-based shoe prototype offers a reliable and accurate method for gait quality assessment.
- This technology provides a foundation for developing advanced, integrated solutions for remote patient monitoring and diagnostics.
- The system holds potential for improving the early detection and management of gait-related pathologies.

