Assessment of inertial and gravitational inputs to the vestibular system.
J Biomech
; 34(6): 821-6, 2001 Jun.
Article
em En
| MEDLINE
| ID: mdl-11470122
ABSTRACT
A new device for the assessment of instantaneous angular and linear accelerations of the head is presented, which is based on four linear tri-axial accelerometers suitably attached to the head by an helmet. A procedure for reproducible helmet placement and calibration is given. A method is also illustrated to work out the different linear accelerations sensed by the vestibular organs in the left and right labyrinths and the components of the angular acceleration sensed by their semicircular canals. The computation is based on few individual parameters describing the helmet position with respect to external landmarks and on the average internal position and orientation of the vestibula. The purpose is to study the components of internal inertial forces, which represent the primary inputs to the vestibular system devoted to equilibrium and oculomotor control. The system is designed to be of easy application during rehabilitation exercises and in clinical environment during diagnostic and therapeutic manoeuvres. The prototype is tested with simple free movements such as "yes", "no", and gait.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vestíbulo do Labirinto
/
Aceleração
/
Gravitação
Limite:
Humans
Idioma:
En
Revista:
J Biomech
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Itália