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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