Combined effects of low-dose caffeine and warm-up music enhance male athletes' performance in simulated Taekwondo combat: a double-blind, randomized crossover trial. - Delleli, Slaheddine; Ouergui, Ibrahim; Messaoudi, Hamdi; Cazan, Florin; Ballmann, Christopher Garrett; Ardigò, Luca Paolo; Chtourou, Hamdi (Psychopharmacology, 2025)