Fig. 4From: Dose-dependent effect of caffeine supplementation on judo-specific performance and training activity: a randomized placebo-controlled crossover trialTotal number of throws in SJFT (a-b) and heart rate right after (HRRA) and 1 min after (HR1minAF) the tests (c-d) in athletes who consume (a, c) or do not consume CAF (b, d) on a regular basis. abc - different letter inscriptions refer to statistical differences between CAF dosages, P < 0.05Back to article page