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Table 1 Measures of Wingate anaerobic capacity performance and fatigue index

From: The effect of acute pre-workout supplementation on power and strength performance

  Baseline Placebo PWS Effect size Difference
PWS-Baseline PWS-Placebo
Peak Power (W) 723 ± 205 722 ± 208 782 ± 191* 0.28 0.3 Small
Mean Power (W) 538 ± 148 535 ± 149 569 ± 133* 0.22 0.24 Small
Minimum Power (W) 331 ± 90 336 ± 87 356 ± 83 0.29 0.24 Small
Fatigue Index (%) 52.8 ± 6.6 53.3 ± 8.4 53.6 ± 8.7 0.10 0.03 Trivial
  1. Note: Data are presented as mean ± standard deviation. PWS pre-workout supplement. * = significantly greater than baseline and placebo (p < 0.05). Effect sizes, < 0.2 = trivial; 0.2 to 0.49 = small; 0.5 to 0.79 = moderate; > 0.8 = large