Adaptive Auto-Regressive Proportional Myoelectric Control.
IEEE Trans Neural Syst Rehabil Eng
; 27(2): 314-322, 2019 02.
Article
en En
| MEDLINE
| ID: mdl-30676969
ABSTRACT
In proportional myographic control, one can control either position or velocity of movement. Here, we propose to use adaptive auto-regressive filters, so as to gradually adjust between the two. We implemented this in an adaptive system with closed-loop feedback, where both the user and the machine simultaneously attempt to follow a cursor on a 2-D arena. We tested this on 15 able-bodied and three limb-deficient participants using an eight-channel myoelectric armband. The human-machine pairs learn to perform smoother cursor movements with a larger range of motion when using the auto-regressive filters, as compared with our previous effortswithmoving-average filters. Importantly, the human-machine system converges to an approximate velocity control strategy resulting in faster and more accuratemovements with lessmuscle effort. The method is not specific tomyoelectriccontroland could be used equally well for motion control using high-dimensional signals from reinnervatedmuscles or direct brain recordings.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Electromiografía
/
Sistemas Hombre-Máquina
Límite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
IEEE Trans Neural Syst Rehabil Eng
Asunto de la revista:
ENGENHARIA BIOMEDICA
/
REABILITACAO
Año:
2019
Tipo del documento:
Article