Cerebellar excitability and motor control
tremor, reduced cerebellar excitability, fatigue
ADVERSE EFFECTS, CEREBELLAR FUNCTION
To examine whether the reduced excitability related to the adverse effects of fatigue on motor control, we quantified endpoint error and variability during a fast reverse-at-target goal-directed task that requires the preplanned coordination of the antagonistic muscles (Reduced CBI relates to impaired performance after fatigue. To examine the motor control consequences of reduced cerebellar excitability after a fatiguing task, we used a fast reverse-at-target goal-directed task that requires the preplanned coordination of the antagonistic muscles, which relies on cerebellar function, and minimizes the influence of fatigue-induced tremor on endpoint error. We quantified endpoint error and endpoint variability to examine fatigue-related changes in performance. To understand whether the association between reduced cerebellar excitability and impaired motor control, we examined whether endpoint error or variability related to CBI after the fatigue task. While endpoint error did not correlate with CBI (