a-d. Mean muscle total creatine (Figure 6a), creatine phosphate (Figure 6b), creatine (Figure 6c), and muscle ATP (Figure 6d) 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. Data are presented as mean ± SEM. *creatine different from corresponding placebo. + post different from pre.