Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
How an active orthosis interferes with the movement, muscles recruitment and activations during knee flexion-extension
Submission Author:
Denis César Mosconi Pereira , SP
Co-Authors:
Denis César Mosconi Pereira, Yecid Moreno, Adriano Siqueira
Presenter: Adriano Siqueira
doi://10.26678/ABCM.COBEM2023.COB2023-1514
Abstract
The purpose of this work was to analyze the effects of a specific active knee orthosis on the human knee flexion-extension, with regard to the muscle recruitment and activations, movement and robot torques. To this, an experimental procedure was conducted with a subject performing knee flexion-extensions according to a predefined trajectory and wearing the orthosis in active-assistive mode, passive mode and also without orthosis. Measurements of position, torque and electromyography were performed. The results allowed to conclude that orthosis interferes with the patterns of movement and muscle recruitment, as well as increasing activation levels, in addition to the fact that such interferences are not always obvious. It was observed that the user does not always take advantage of the assistance provided by the orthosis. For future work, more experiments will be carried out with more people, in order to verify the repeatability of the results, as well as if there are new intercurrences not observed until then.
Keywords
robotic rehabilitation, Active Orthosis, knee orthosis
