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Wearable low-cost inertial sensor-based electrogoniometer for measuring joint range of motion

  • Andrés F. Ruiz-Olaya [1] ; Mauro Callejas-Cuervo [2] ; Claudia N. Lara-Herrera [1]
    1. [1] Universidad Antonio Nariño

      Universidad Antonio Nariño

      Colombia

    2. [2] Universidad Pedagógica y Tecnológica de Colombia

      Universidad Pedagógica y Tecnológica de Colombia

      Colombia

  • Localización: DYNA: revista de la Facultad de Minas. Universidad Nacional de Colombia. Sede Medellín, ISSN 0012-7353, Vol. 84, Nº. 201, 2017, págs. 180-185
  • Idioma: inglés
  • DOI: 10.15446/dyna.v84n201.59054
  • Títulos paralelos:
    • Electrogoniómetroportable de bajo costo basado en sensores inerciales para la medición del rango articular de movimiento
  • Enlaces
  • Resumen
    • español

      El análisis del movimiento humano ha llegado a ser fundamental para una amplia gama de aplicaciones, tales como terapias físicas, neuro-rehabilitación, medicina deportiva, la evaluación de la funcionalidad del sistema motor y la medicina del trabajo. Este artículo se centra en el diseño, implementación y validación de un electrogoniómetro portátil basado en sensores inerciales y magnéticos para la adquisición del rango articular de movimiento. El sistema se compone de dos unidades de medición inercial y un microcontrolador que permite la captura de movimiento humano en tiempo real. El electrogoniómetro se validó tanto en condiciones estáticas como dinámicas, en comparación con un electrogoniómetro estándar comercial para movimientos de la articulación del codo. Para validación estática, el coeficiente de correlación de concordancia (ρC) obtenido fue 0.9605. El ρC obtenido para los movimientos cíclicos de baja velocidad fue 0.9830 y el ρC obtenido para los movimientos cíclicos de velocidad moderada fue 0.9619.

    • English

      Human movement analysis havebecome fundamental for a wide range of applications, such as physical therapies, neuro-rehabilitation, sports medicine, human motor system performance assessment and occupational medicine. This paper focuses on the design, implementation and validation ofan inertial sensor-based portable electrogoniometer aimed at measuring joint range of motion. The system is composed of two inertial measurement units and a microcontroller that permits real-time human motion capture. The electrogoniometer was tested bothin static and dynamic conditions in comparison to a standard commercial electrogoniometer during elbow movements. For static validation, the concordance correlation coefficient (ρC) obtained was 0.9605. The ρCfound for slow-speed cyclical movements was 0.9830 and the ρCfound for moderate-speed cyclical movements was 0.9619.

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