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Table 1 Baseline characteristics and typical structure of training loads in tested athletes during chronic and acute supplementation period

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

 

Field hockey players

 

Chronic-group

Acute-group

p-Value

n

12

12

Age (years)

24.3 ± 5.6

22.2 ± 2.6

0.261

Body mass (kg)

75.0 ± 8.3

82.2 ± 14.1

0.142

Body height (cm)

176 ± 5

183 ± 8

0.022

Body Mass Index (kg/m2)

24.2 ± 2.2

24.4 ± 2.3

0.822

Fat mass (%)

12.6 ± 3.2

12.7 ± 4.2

0.942

Fat-free mass (%)

87.4 ± 3.2

87.3 ± 4.2

0.942

Peak power (W)

733 ± 103

792 ± 153

0.272

Mean power (W)

577 ± 73

627 ± 107

0.202

Time in specific performance test (s)

923 ± 42

939 ± 26

0.191

Training sessions per week (no.)

4.7 ± 0.5

4.6 ± 0.7

0.931

Competitions (no.)

1 ± 0

1 ± 0

Training time

 total (hours)

8.2 ± 0.9

7.8 ± 1.1

0.041

 per one training session (hours)

1.8 ± 0.0

1.7 ± 0.0

0.021

  1. 1 Data analyzed by Mann−Whitney U test. 2 Data analyzed by t-test for independent variables