TRIL Gait Analysis Platform
From Capsil Wiki
The TRIL Centre have developed a gait analysis system with the following major components
- Floormat sensor
- Body Worn Sensors (Physiological/Kinematic parameters)
- Motion video capture
- Software/UI for clinicians
The body worn sensor capabilities for the Gait analysis were provide by the SHIMMER wireless sensor platform. The SHIMMER units are controlled by and communicate data to a master PC via a Bluetooth radio stack. The application software developed using the BioMOBIUS environment supportsdata capture at rates up to 100Hz for kinematic SHIMMERs and up to 500Hz for ECG SHIMMERs. During clinical trials three SHIMMERs are worn by the subject. Two kinematic SHIMMERs, one attached to each leg are used to determine the temporal parameters of gait. A third SHIMMER unit attached to the chest using three electrodes measures the ECG signal of the heart from which heart rate may be determined. The floor-mat technology used in the gait analysis platform is based on Tactex Control Inc. floor sensors. These sensors provide bespoke pressure sensitive walkways, designed to analyze gait. The walkway consists of 45 pressure-sensitive tiles, developed specifically for TRIL. The floor sensor measures pressure under the foot as the person walks along the walkway. The sensor can therefore be used to detect the location and timing of each footfall, as well as pressure changes under the foot during gait. BioMOBIUS blocks were developed to acquire, store and The system's user interface allows clinicians to select and adjust what data that is collected and how the data is processed. The software encapsulates data acquisition and signal processing modules, and allows customization of the sensors.
