Figure 6From: Effects of carbohydrate combined with caffeine on repeated sprint cycling and agility performance in female athletesChanges in serum testosterone (A) and cortisol (B) concentrations in the conditions of caffeine + placebo (CAF + PLA), caffeine + carbohydrate (CAF + CHO), placebo + carbohydrate (PLA + CHO), and placebo + placebo (PLA + PLA). * = significant increase from pre-test (p < .01). Values are mean ± standard deviation.Back to article page