Fig. 2From: Effect of low dose, short-term creatine supplementation on muscle power output in elite youth soccer playersTotal work (J.kg−1; a) and fatigue index (FI, %; b) before and after the Cr or placebo supplementation period. a Denotes a significant difference between pre- and post-supplementation (P < 0.05). * Denotes a significant difference between the Cr and placebo groups (P < 0.05). Values are mean ± SEBack to article page