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Table 3 Peak values during the CLT at CP for V O 2 , V CO2, RER and HR on the first and fifth day of testing with either NaHCO 3 or placebo supplementation

From: Multiday acute sodium bicarbonate intake improves endurance capacity and reduces acidosis in men

 

NaHCO3

Placebo

 

Day 1

Day 5

Day 1

Day 5

V O2,CLT

4.64 ± 0.39

4.66 ± 0.30

4.59 ± 0.37

4.64 ± 0.47

V CO2,CLT

4.63 ± 0.47

4.67 ± 0.19

4.58 ± 0.36

4.59 ± 0.40

RERCLT

1.07 ± 0.04

1.08 ± 0.05

1.03 ± 0.05

1.05 ± 0.05

HRCLT

177.4 ± 8.5

172.8 ± 9.0**

176.3 ± 7.8

173.8 ± 8.6**

  1. Values are mean ± SD (n = 8). CLT, constant-load trials; CP, ‘Critical Power’; V O2, oxygen uptake; V CO2 carbon dioxide output; RER, respiratory exchange ratio; HR, heart rate. ** P < 0.01 relative to day 1.
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Journal of the International Society of Sports Nutrition

ISSN: 1550-2783

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