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Table 3 Concentrations of blood non-enzymatic antioxidants in response to GTE supplementation and CrossFit workout

From: Effects of medium-term green tea extract supplementation combined with CrossFit workout on blood antioxidant status and serum brain-derived neurotrophic factor in young men: a pilot study

Group Variable Trial Rest 3 min post test 1 h post test
PLA GSH (μg/mgHb) 1st 2.54 ± 0.2 2.34 ± 0.2 2.47 ± 0.3
2nd 2.47 ± 0.4 2.39 ± 0.3 2.34 ± 0.3
GTE 1st 2.60 ± 0.4 2.59 ± 0.4 2.79 ± 0.54
2nd 2.86 ± 0.3 2.76 ± 0.4 2.69 ± 0.3
PLA UA (mg/dl) 1st 4.25 ± 1.3 4.82 ± 0.6 5.62 ± 0.9
2nd 5.63 ± 1.2* 5.96 ± 0.9* 6.83 ± 1.1*†
GTE 1st 4.93 ± 0.5 5.50 ± 0.8 6.62 ± 0.7
2nd 5.91 ± 1.0* 6.13 ± 1.1 6.82 ± 1.5
PLA Total phenolics (g GAE/l) 1st 1.87 ± 0.08 1.76 ± 0.07†† 1.74 ± 0.06††
2nd 1.84 ± 0.05 1.73 ± 0.08 1.72 ± 0.07
GTE 1st 1.89 ± 0.10 1.79 ± 0.10†† 1.73 ± 0.06††
2nd 1.94 ± 0.07 1.84 ± 0.04 1.79 ± 0.05††
  1. Data are provided as mean ± standard deviation (SD); Abbreviations: PLA the control placebo group, GTE the supplemented with green tea extract group, GSH glutathione, UA uric acid; Significant differences: *p < 0.05 vs. respective basal values before treatment; p < 0.05, ††p < 0.001 vs. resting values