Multimodal stimulation system using ROS2 for the study of proprioceptive afference and stimuli

Authors

DOI:

https://doi.org/10.17979/ja-cea.2025.46.12232

Keywords:

FES, Proprioception, Vibratory stimulation, ROS2, Muscle afference

Abstract

This work presents the design and implementation of a functional electrical stimulation (FES) and vibratory-stimulation system with real-time inertial recording, built on ROS 2. Previous studies using similar systems are reviewed to identify the key parameters and guide prototype development. The phases for determining each subject’s sensory- and motor-threshold currents are described, and the platform supports four experimental protocols (FES-position, FES-velocity, VIB-position and VIB-velocity). Stimulation is delivered either through the TremUNA device or through micro-vibrators synchronized with forearm kinematics. The proposed architecture enables precise stimulation control, trial randomization and automatic event segmentation while logging all data for intra- and inter-subject analysis. Results confirm the feasibility of the platform as a research tool for studying the influence of electrical and vibratory afference on proprioception.

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Published

2025-09-01

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Section

Bioingeniería