a and b - Mean respiratory exchange ratio (RER; Figure 3a) and submaximal oxygen consumption (Figure 3b) during approximately 2-hours of cycling performed before and at the end of 28 days of dietary supplementation (3 g/day creatine; n = 6 or placebo; n = 6) in young trained cyclists. Arrows denote sprint bouts. Data are presented as mean ± SEM. * different from creatine (P < 0.05). ** Submaximal oxygen consumption lower post than pre supplementation at 117 minutes.