Skip to main content

Table 2 Results of Wingate anaerobic test before (WAnT_1) and after (WAnT_2) hockey-specific performance test – chronic supplementation strategy

From: The influence of progressive-chronic and acute sodium bicarbonate supplementation on anaerobic power and specific performance in team sports: a randomized, double-blind, placebo-controlled crossover study

   SB-PRE SB-POST p-Value
Z1 or F2
rc1 or \( {\eta}_p^2 \)2
PLA-PRE PLA-POST p-Value
Z1 or F2
rc1 or \( {\eta}_p^2 \)2
Work effort (W) WAnT _1 232 ± 19 243 ± 16 0.0051 234 ± 14 241 ± 14 0.0312
2.821 6.2572
0.821 0.3852
WAnT _2 225 ± 23 228 ± 19 0.3652 227 ± 14 238 ± 17 0.1042
0.8982 3.2052
0.0822 0.2432
Mean power (W) WAnT _1 575 ± 71 602 ± 67 0.0052 585 ± 73 602 ± 74 0.2642
12.502 1.3972
0.5562 0.1232
WAnT _2 560 ± 90 567 ± 77 0.3822 569 ± 72 595 ± 74 0.3932
0.8372 0.7962
0.0772 0.0742
Peak power (W) WAnT _1 749 ± 94 777 ± 96 0.0022 753 ± 105 784 ± 104 0.2542
17.3062 1.4642
0.6342 0.1282
WAnT _2 714 ± 109 738 ± 117 0.1821 723 ± 89 762 ± 105 0.2222
1.3341 1.6992
0.381 0.1452
Time to PP (s) WAnT _1 6.10 ± 1.06 5.84 ± 0.94 0.2462 6.28 ± 0.87 5.98 ± 1.12 0.9422
1.5192 0.0062
0.1322 0.0012
WAnT _2 5.77 ± 0.89 6.19 ± 1.16 0.7662 6.84 ± 2.46 5.88 ± 0.96 0.2322
0.0932 1.6182
0.0092 0.1392
Power carry threshold at 97%PP (W) WAnT _1 727 ± 91 753 ± 93 0.0022 731 ± 102 761 ± 101 0.2442
17.1912 1.5322
0.6322 0.1332
WAnT _2 693 ± 106 716 ± 114 0.1821 701 ± 86 740 ± 102 0.2282
1.3341 1.6502
0.381 0.1422
Average power over the PCT (W) WAnT _1 739 ± 94 765 ± 95 0.0012 742 ± 104 774 ± 102 0.2302
21.4442 1.6322
0.6822 0.1402
WAnT _2 704 ± 108 728 ± 116 0.1821 713 ± 87 752 ± 102 0.1972
1.3341 1.9102
0.3801 0.1602
HRmax (bpm) WAnT _1 175 ± 8 172 ± 9 0.1602 173 ± 9 171 ± 9 0.1581
2.3002 1.4121
0.1872 0.4081
WAnT _2 179 ± 6 177 ± 9 0.6832 177 ± 6 179 ± 8 0.1821
0.1772 1.3341
0.0172 0.3851
  1. 1Data analyzed by Wilcoxon signed-rank test; effect size expressed as rank correlation coefficient (rc). 2Data analyzed by two-way ANOVA with repeated measurements; effect size expressed as partial eta-squared (\( {\eta}_p^2 \)). Abbreviations: HRmax – maximal heart rate, PCT – power carry threshold at 97%PP, PLA-PRE – before placebo treatment, PLA-POST – after placebo treatment, PP – peak power, SB-PRE – before sodium bicarbonate supplementation, SB-POST – after sodium bicarbonate supplementation, WAnT_1 – the Wingate anaerobic test performed before hockey-specific performance test, WAnT_2 – the Wingate anaerobic test performed after hockey-specific performance test