The Effect of Caffeine Alone or as Part of a Multi-ingredient Pre- workout Supplement on Muscular Endurance in Recreationally Active College Males. Journal of Exercise and Nutrition, [S. l.], v. 1, n. 5, 2018. Disponível em: https://journalofexerciseandnutrition.com/index.php/JEN/article/view/31. Acesso em: 16 apr. 2026.