Modulation of beta oscillatory dynamics in motor and frontal areas during physical fatigue.

ABSTRACT: Beta-band oscillations have been suggested to promote the maintenance of the current motor (or cognitive) set, thus signaling the 'status quo' of the system. While this hypothesis has been reliably demonstrated in many studies, it fails to explain changes in beta-band activity due to the accumulation of physical fatigue. In the current study, we aimed to reconcile the functional role of beta oscillations during physical fatigue within the status quo theory. Using an innovative electroencephalography design, we identified two distinct beta-band power dynamics in the motor areas as fatigue rises: (i) an enhancement at rest, supposedly promoting the resting state, and (ii) a decrease during contraction, thought to reflect the increase in motor cortex activation necessary to cope with muscular

SUBMITTER: Matta PM 

PROVIDER: S-EPMC12044028 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature