Vieillissement et contrôle cérébral de l'exercice

Aims: To evaluate the action of the exercise on cerebral ageing. Current knowledge: This article focuses on three basic ideas: 1) it is possible to control in some extent, by specific exercises the decline of the cognitive and sensorimotor functions during normal ageing; 2) the ageing of the cerebral structures is not homogeneous, certain zones of the brain undergo a reduction of volume more important than the others; 3) the choice of the type of exercise may be made by taking into account the interaction between the changes related to ageing in the 'sensory envelop' and in the motor outcome. We review here the different effects of normal ageing on the peripheral and central nervous pathways. The somatosensory evoked potentials studies have allowed deciphering some peculiar ageing effects on the frontal N30 component which also reflect the physiological state of the dopaminergic pathways. The behaviour of the neural circuitry between the basal ganglia, the cerebellum and the cortex were summarized in order to highlight the differential effects of ageing on these structures and their respective involvement in the sensorimotor control. © 2006 Elsevier SAS. All rights reserved.
SCOPUS: sh.j
info:eu-repo/semantics/published