Altered Muscle-Brain Connectivity During Left and Right Biceps Brachii Isometric Contraction Following Sleep Deprivation: Insights from PLV and PDC.

ABSTRACT: Insufficient sleep causes muscle fatigue, impacting performance. The mechanism of brain-muscle signaling remains uncertain. In this study, we examined the impact of sleep deprivation on muscle endurance during isometric contractions and explored the changes in brain-muscle connectivity.

Methods

The research involved 35 right-handed male participants who took part in an exercise test that included isometric contractions of the left and right biceps in both sleep-deprived and well-rested states. Muscle contraction duration and electroencephalogram (EEG) and electromyography (EMG) signals were recorded. Functional connectivity between brain regions was assessed using the phase locking value (PLV), while partial directed coherence (PDC) was used to analyze signal directionality between

SUBMITTER: Chi P 

PROVIDER: S-EPMC11991489 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature