Low-dose caffeine (200 mg) reduces cortical drowsiness reflected by decreased delta wave power shortly after ingestion in fatigued Taekwondo athletes.
Caffeine enhances cognitive processing as demonstrated by increased P300 amplitude in auditory event-related potentials post fatigue induction.
No significant caffeine-induced improvements were observed in sport-specific physical performance or physiological fatigue markers after combined mental and physical fatigue.
Findings suggest caffeine’s primary beneficial effect post-fatigue lies in cognitive enhancement rather than physical performance amplification in combat sports.