Identifying a Upper-Limb Phase-Dependent Variable under Perturbations for Powered Prosthesis Arm Control.
Annu Int Conf IEEE Eng Med Biol Soc
; 2023: 1-5, 2023 07.
Article
en En
| MEDLINE
| ID: mdl-38082582
ABSTRACT
This paper investigates upper-limb kinematic reaching responses during a mechanical perturbation to understand interjoint arm coordination used towards powered prosthesis control development. Common prosthesis arm controllers use electromyography sensors with data-driven models to decode muscle activation signals in controlling prosthesis joint movements. However, these control approaches produce non-natural, discrete movements with no guarantee the controller can react to unexpected disturbances during continuous task motion. Determining a continuous phase-dependent variable for measuring a human's progression during reaching can derive a time-invariant kinematic function to control the prosthesis joint in a natural, continuous manner. A perturbation experimental study was conducted across three participants in evaluating the shoulder and elbow joint kinematics to examine the existence of a phase shift during reaching. Experimental results demonstrated the effects of arm proximal-distal interjoint coordination that validated the proposed mechanical phase variable of the shoulder used in parameterizing elbow joint kinematic for reaching. This could allow for a continuous phase-based control strategy that can handle disturbances to achieve arm reaching in prosthesis control.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Miembros Artificiales
/
Articulación del Codo
Límite:
Humans
Idioma:
En
Año:
2023
Tipo del documento:
Article