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Figure 2 Apparent Michaelis-Menten constant (Km) for adenosine diphosphate (ADP)-stimulated respiration in the absence or presence of creatine. The Km (µmol/l) without creatine was increased after training (**p < 0.01). The addition of creatine significantly decreased the Km, but only after training ( p < 0.01 vs. Km without creatine). Dotted bars = untrained (UT) group before training; bars with diagonal lines = UT group after training; open bars = trained (T) group before training; solid bars = T group after training.
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