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

Exercise-induced oxidative stress and hypoxic exercise recovery - Christopher Ballmann; Graham McGinnis; Bridget Peters; Dustin Slivka; John Cuddy; Walter Hailes; Charles Dumke; Brent Ruby; John Quindry (European Journal of Applied Physiology, 2014)