Ingestion of a moderately high caffeine dose before exercise increases post-exercise energy expenditure
Fernández-Elías VE, Del Coso J, Hamouti N, Ortega JF, Muñoz G, Muñoz-Guerra J, Mora-Rodríguez R.
Int J Sport Nutr Exerc Metab. 25(1):46-53. Feb 2015