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Table 4 Creatine Phosphokinase (CPK), Creatinine and urea levels before and after creatine supplementation and resistance training

From: Effects of creatine supplementation on oxidative stress profile of athletes

Group CPK (U/l) Creatinine (mg/dl) Urea (mg/dl)
  Pre Post Pre Post Pre Post
GC 95 ± 32 153 ± 99 1.41 ± 0.77 1.47 ± 0.28 25 ± 6 38 ± 9
GP 111 ± 62 95 ± 49 1.03 ± 0.57 1.25 ± 0.23 26 ± 9 38 ± 11
COT 129 ± 71 121 ± 78 1.10 ± 0.88 1.27 ± 0.23 24 ± 5 35 ± 9
  1. Values are expressed as mean ± SD; GC= creatine supplemented athletes; GP= placebo (malthodextrin) supplemented athletes; COT= non-supplemented control athletes.