Publicado

2017-04-01

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

Electrogoniómetro portable de bajo costo basado en sensores inerciales para la medición del rango articular de movimiento

DOI:

https://doi.org/10.15446/dyna.v84n201.59054

Palabras clave:

Electrogoniometer, inertial sensors, joint range of motion, motion capture system (en)
Electrogoniómetro, sensores inerciales, rango articular de movimiento, sistema de captura de movimiento (es)

Autores/as

Human movement analysis have become 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 of an 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 both in 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 ρC found for slow-speed cyclical movements was 0.9830 and the ρC found for moderate-speed cyclical movements was 0.9619.
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.

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Cómo citar

[1]
A. F. Ruiz-Olaya, M. Callejas-Cuervo, y C. N. Lara-Herrera, «Electrogoniómetro portable de bajo costo basado en sensores inerciales para la medición del rango articular de movimiento», DYNA, vol. 84, n.º 201, pp. 180–185, abr. 2017, doi: 10.15446/dyna.v84n201.59054.