par Duchateau, Jean 
;Nicol, Caroline;Baudry, Stéphane
Référence Kinésithérapie la revue, 14, 145, page (45-51)
Publication Publié, 2014-01
;Nicol, Caroline;Baudry, Stéphane Référence Kinésithérapie la revue, 14, 145, page (45-51)
Publication Publié, 2014-01
Article révisé par les pairs
| Résumé : | Summary The purpose of this brief review is to synthesize the scientific knowledge related to sarcopenia (reduction in muscle mass with ageing) and the associated functional alterations. Sarcopenia is not only due to the atrophy of muscle fibres but also to a loss of fibres resulting from the apoptosis of some motor neurones in the spinal cord. These alterations lead to a reduction in the number of motor units and to the development of "giant" units. Because this reorganisation of motor units, associated with other neural changes, has important implications on the control of our movements, some scientists find that the term sarcopenia is too restrictive and propose to use the word "dynapenia" to evoke the functional alterations associated with senescence. The effect of physical exercises as prevention and compensation for sarcopenia/dynapenia are also evoked. Level of evidence Not applicable. |
