Figure 2From: Ergogenic effects of caffeine and sodium bicarbonate supplementation on intermittent exercise performance preceded by intense arm cranking exercise Capillary blood lactate (A) and glucose (B) concentrations before, during and after the Yo-Yo IR2 test protocol (n = 12) in the placebo (PLA), caffeine (CAF) and sodium bicarbonate (NaHCO 3 ) trials. Back to article page