Université de Fribourg

Postural challenge affects motor cortical activity in young and old adults

Papegaaij, Selma ; Taube, Wolfgang ; Keeken, Helco G. van ; Otten, Egbert ; Baudry, Stéphane ; Hortobágyi, Tibor

In: Experimental Gerontology, 2016, vol. 73, p. 78–85

When humans voluntarily activate a muscle, intracortical inhibition decreases. Such a decrease also occurs in the presence of a postural challenge and more so with increasing age. Here, we examined age-related changes in motor cortical activity during postural and non-postural contractions with varying levels of postural challenge. Fourteen young (age 22) and twelve old adults (age 70) performed...