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Adaptive Impedance Control for Robot-Aided Rehabilitation of Ankle Movements

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Autor(es):
Perez Ibarra, Juan C. ; dos Santos, Wilian M. ; Krebs, Hermano I. ; Siqueira, Adriano A. G. ; IEEE
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: 2014 5TH IEEE RAS & EMBS INTERNATIONAL CONFERENCE ON BIOMEDICAL ROBOTICS AND BIOMECHATRONICS (BIOROB); v. N/A, p. 6-pg., 2014-01-01.
Resumo

This paper summarizes our on-going efforts to design adaptive assist-as-needed impedance controllers for ankle rehabilitation. Two robot assistance control strategies were evaluated: the first one attempted to normalize the combined robot and patient impedance via a complementary robot stiffness based on the estimate of the patient's stiffness and the second one searched for an optimal solution that minimized a cost function relating the rehabilitation goal and the interaction between patient and robot. For both strategies, the robot level of assistance was adapted based on patient's performance on distinct video games (serious games). Preliminary experimental results, employing the Anklebot in one stroke patient, confirmed the feasibility of the proposed control schemes in helping the subject to complete the tasks with optimal assistance from robot. (AU)

Processo FAPESP: 11/04074-3 - Desenvolvimento de um dispositivo robótico interativo para reabilitação de lesões da articulação do joelho
Beneficiário:Wilian Miranda dos Santos
Modalidade de apoio: Bolsas no Brasil - Mestrado