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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