Fig. 3From: Oral L-citrulline supplementation enhances cycling time trial performance in healthy trained men: Double-blind randomized placebo-controlled 2-way crossover studyCompletion times of the 4 km TT after placebo or L-citrulline supplementation. Values are means ± S.E.M. n = 22, * p < 0.05, indicating a significant difference from placeboBack to article page