Examinando por Autor "Villa-Moreno, A. (Adriana)"

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    Apropiación social e investigación participativa en ingeniería en rehabilitación
    (2014-04-30) Villa-Moreno, A. (Adriana); Correa-Restrepo, M. L. (Margarita Lucía); Acosta-Ramírez, S. (Stefanía); Guarín-Grisales, A. (Álvaro)
    One of the main goals of rehabilitation engineering is improving the quality of life of people with disabilities through developing solutions for their specifi c needs. When participatory methodologies for research and design are applied, the resulting solutions show advantages such as products that better address the needs of the community, solutions that are better accepted by the community, and the identifi cation of potential sources and niches for innovation. In addition, participatory methodologies provide benefi ts that are not only associated with the generated results and products but with the processes themselves. When research processes are inclusive and promote authentic participation a higher social impact can be obtained. This paper proposes a methodological approach for the development of habilitation and rehabilitation products that allows the convergence of participatory research tendencies, design tendencies and the voice of the community that claims for co-participation. This approach also incorporates strategies for the social appropriation of knowledge. Examples, barriers, diffi culties, challenges and recommendations for conducting research with a focus on participation are also presented. The refl ections herein presented may also be applied to other fi elds.
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    Consideraciones para el análisis de la marcha humana. Técnicas de videogrametría, electromiografía y dinamometría
    (2014-04-20) Villa-Moreno, A. (Adriana); Gutiérrez-Gutiérrez, E. (Eduardo); Pérez-Moreno, J. C. (Juan Carlos)
    Human gait analysis has been used in a wide range of applications, such as diagnosis and treatment selection for patients with neuro-muscular-skeletal diseases. The methods and technologies that exist for gait analysis are numerous, and they allow the recollection of the main quantitative parameters of a gait pattern in an objective way. A lot of factors must be considered during gait analysis in order to obtain reliable results; some of them must be taken into account, including the planning and configuration of the laboratory, the acquisition process and the results analysis system. This paper presents some considerations derived from the literature review and also from the direct experience with patients. They are mainly focused in systems which use techniques such as videogrammetry, dynamometry and electromyography, since they are the most used nowadays.
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    Desarrollo de un sistema de audición vibrotáctil para el acceso a la música: Fase I
    (2013-09-26) Villa-Moreno, A. (Adriana); García-Quiroz, F. (Felipe); Castaño-Jaramillo, P. (Paula); Londoño-Jaramillo, N. (Nathalia)
    The sense of touch transmits not only isolated tactile sensations also information that can be processed at the cerebral cortex in a similar way as it is in the brain areas for audition or vision. Both vibratile and electrical stimuli have been used for tactile stimulation devices, and the former was chosen for the system presented. The tactile auditory-substitution systems have focused on communication skills, but this work pretends the construction of a device for developing musical and artistic skills. These should be reflected in the capacity to identify musical pieces through tactile stimulation. The graphical user interface of the system was programmed using the virtual instrumentation software LabVIEW 7.0. It includes tools for the learning of the system, which were developed to help increasing the sensitivity of the user. Besides, to ensure a clear association with music theory and acoustic concepts some visual feedback systems were implemented
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    Development of a Dynamic Goniometer with an Incremental Encoder
    (2014-04-19) García-Quiroz, F. (Felipe); Villa-Moreno, A. (Adriana); Restrepo-Peláez, M. (María)
    La medición dinámica de los ángulos articulares se ha convertido en un parámetro fundamental para deportistas, médicos y analistas de los procesos de rehabilitación. El desarrollo de dispositivos para estas aplicaciones ha presentado retos importantes debido a la imposibilidad de implementar los sistemas mecánicos requeridos para la medición, sin afectar el movimiento natural de las articulaciones. Los goniómetros digitales se han construido a partir de diferentes principios electrónicos, particularmente basados en las variaciones resistivas de potenciómetros. Este trabajo muestra el desarrollo e implementación de un goniómetro dinámico basado en un encoder incremental con un sistema de transmisión mecánico entre una articulación de tipo bisagra y una polea conectada a un disco óptico. La rotación se detecta con un LED infrarrojo y un fototransistor. El cálculo del movimiento angular en la articulación se realiza con un microcontrolador. Finalmente los datos se muestran en tiempo real en una pantalla de cristal líquido (LCD).
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    Interfaces neuronales y sistemas máquina-cerebro: fundamentos y aplicaciones. Revisión
    (2014-04-19) García-Quiroz, F. (Felipe); Villa-Moreno, A. (Adriana); Castaño-Jaramillo, P. (Paula)
    Abstract—During the past ten years the Neural Interfaces and brain-computer communication systems area has become an important field for research, in part due to the increasing statistics of motor and sensorial disabilities. The development of these systems and interfaces requires the coordinated work of different areas such as physiology, materials science, instrumentation and signal processing, computational intelligence, mechanics, electronics, robotics, and informatics, among others. They allowed the right integration between the nervous system physiology, the construction of biocompatible electrodes, the acquiring of proper signals for processing, the classification and identification of coded patterns and the design of the actuators elements to finally achieve the goal of the interface. In this review the three basic stages of neural interfaces are shown. This includes: signal acquiring, signal processing and the wide variety of applications with the effectors systems.