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Sistema portátil de captura de movimiento para el análisis cinemático de la marcha humana

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Author(s): Esperanza Camargo C. | Yamid Garzón G. | Víctor A. Camacho P.

Journal: Tecnura
ISSN 0123-921X

Volume: 16;
Issue: 34;
Start page: 67;
Date: 2012;
Original page

Keywords: accelerometer | biomechanics | motion measurement | medical information systems | medical tests.

ABSTRACT
Gait analysis in humans is performed in specialized laboratories with controlled environments, usually with videogametric techniques. However, some patients change their way of walking when they feel observed. Hence, these labs are very few to cope with the high demand in Colombia, represented by all the people who require these services.The purpose of this study is to design and implement a portable device from motion sensors (accelerometers) that provide the kinematic characteristics of human walking, namely speed, acceleration, and angle between the segment joints (hip, knee and ankle). In order to do this, machined micro accelerometers are used. The information is processed by a microcontroller (PIC 18F4550) and stored on a microSD; then motion is recreated in a graphical interface developed that runs on Open Gl. The development of this type of projects allows capturing human walking in any space (not controlled) and it is useful not only to doctors and specialists, but also to experts in animation. This project was conducted by the research group called DIGITI (Intelligent Digital Systems) at Universidad Distrital, with funding from the CIDC (Center for Scientific Research and Development – Universidad Distrital); the budget was $ 10,000,000).
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