par Manto, Mario 
;Rocon, E;Pons, Jose;Belda, Juan Manuel;Camut, Stéphane
Référence Physiological measurement, 28, 4, page (415-425)
Publication Publié, 2007-04
;Rocon, E;Pons, Jose;Belda, Juan Manuel;Camut, Stéphane Référence Physiological measurement, 28, 4, page (415-425)
Publication Publié, 2007-04
Article révisé par les pairs
| Résumé : | We describe a wearable orthosis and an associated algorithm for the simultaneous assessment and treatment of essential tremor, one of the most common movement disorders in humans involving an overactivity of the olivo-cerebellar pathways. A motor providing effective viscosity is fixed on a wearable orthosis in the upper limbs. The motor is controlled by a personal computer with software processing in real time the position and rate of rotation of the joint detected by a chip gyroscope. The orthosis can be used in a monitoring mode and in an active mode. The range of tremor suppression of the signals above the orthosis operational limit ranges from about 3% (percentile 5) to about 79% (percentile 95) in relation to energy in the monitoring mode. Considering both postural and kinetic, the mean tremor energy decreased from 55.49 +/- 22.93 rad2 s(-3) in the monitoring mode to 15.66 +/- 7.29 rad2 s(-3) in the active mode. Medians of power reduction were below 60% for the wrist and the elbow. In addition to supplying new information on the interactions between kinematics, dynamics and tremor genesis, this non-invasive technique is an alternative to current therapies. This new approach will provide new insights into the understanding of motor control. |
