Kilder

Dispelling the myth that habitual caffeine consumption influences the performance response to acute caffeine supplementation. Journal of Applied Physiology, July 2017. LINK

Caffeine and Physiological Responses to Submaximal Exercise: A Meta-Analysis. International Journal of Sports Physiology and Performance 2017. LINK

Caffeine for Sports Performance 2013. LINK

Effect of caffeine on quadriceps muscle pain during acute cycling exercise in low versus high caffeine consumers. Int. J Sport Nutr Exerc Metab. 2009 Apr;19(2):150-61. LINK

Coffee and Health. LINK