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Table 1 Serum concentration of uric acid and creatinine, and plasma glucose and lactate in the Caffeine and Placebo Conditions before, during and post-training

From: Caffeine improves biochemical and specific performance after judo training: a double-blind crossover study in a real judo training situation

 

Before (0 min)

During (60 min)

Post-training (120 min)

Serum uric acid (mg/dL)

Caffeine

4.5 ± 0.9a

5.5 ± 1.3

5.4 ± 0.9c

Placebo

4.4 ± 0.9a

6.3 ± 1.2b

7.0 ± 1.5

Serum creatinine (mg/dL)

Caffeine

0.9 ± 0.1a

1.2 ± 0.2

1.2 ± 0.2

Placebo

0.9 ± 0.2a

1.1 ± 0.3

1.2 ± 0.3

Plasma glucose (mg/dL)

Caffeine

87.1 ± 8.3

99.4 ± 19.8

90.4 ± 19.5

Placebo

84.3 ± 6.4

97.7 ± 24.1

91.9 ± 18.4

Plasma lactate (mmol/L)

Caffeine

1.2 ± 0.9a

4.6 ± 2.1

4.9 ± 1.8c

Placebo

1.2 ± 0.4a

3.4 ± 1.6

3.0 ± 1.2

  1. Data presented by mean ± standard-deviation
  2. ap ≤ 0.045 from this measurement moment versus the others for the same condition
  3. bp ≤ 0.049 from this measurement moment versus Post-training for the same condition
  4. cp ≤ 0.047 versus placebo at the Post-training