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Table 1 Analyses of the difference in energy provision and metabolic parameters before and after the supplementation period for both groups (mean ± standard deviation) and the respective significance value

From: Beta alanine supplementation effects on metabolic contribution and swimming performance

Parameters Suppl. Moment Significance value (p)
Pre Post Moment Supplementation Interaction
Energy provision parameters
 MAOD (L) BA 3.84 ± 1.4 2.94 ± 1.2 0.008* 0.639 0.160
PLA 3.86 ± 1.2 2.94 ± 0.9
 Aer. contribution (L) BA 14.3 ± 4 13.3 ± 3.1 0.128 0.141 0.921
PLA 13.7 ± 3.8 12.6 ± 2.9
 Ana. lactic contribution (L) BA 2.27 ± 0.9 1.5 ± 0.6 0.002* 0.685 0.179
PLA 2.26 ± 0.9 1.9 ± 0.8
 Ana. alactic contribution (L) BA 1.32 ± 0.4 1.1 ± 0.6 0.056 0.415 0.342
PLA 1.35 ± 0.4 1.4 ± 0.8
 Aer. contribution (%) BA 82.1 ± 6.3 83.7 ± 6.3 0.960 0.453 0.276
PLA 81.3 ± 4.1 79.4 ± 8.5
 Ana. lactic contribution (%) BA 12.9 ± 4.7 9.5 ± 3.1 0.022* 0.520 0.356
PLA 13.4 ± 3.8 11.8 ± 4.2
 Ana. alactic contribution (%) BA 4.9 ± 2.3 6.6 ± 3.2 0.032* 0.413 0.414
PLA 5.2 ± 2.2 8.7 ± 4.3
Metabolic parameters
 ∆Lactate (mM) BA 11.6 ± 3.6 8 ± 2.4 0.001* 0.762 0.166
PLA 11.2 ± 3.1 9.46 ± 3.3
 Total energetic cost (L) BA 19.6 ± 4.4 18.1 ± 3.4 0.062 0.945 0.623
PLA 19.2 ± 4.4 18.26 ± 3.4
 VO2max (ml.kg.min−1) BA 58.8 ± 9.3 54.1 ± 6.0 0.045* 0.942 0.650
PLA 54.2 ± 8.0 51.7 ± 4.8
  1. Variables values expressed in means ± standard deviation. Suppl. supplementation; *p < 0.05