NCT03406065

Sodium Bicarbonate Supplementation in Combat Sports Athletes

The Effect of Sodium Bicarbonate Supplementation on Physical and Specific Performance Capacity in Combat Sports Athletes

• Status: Completed
• Phase: Phase 2 / Phase 3
• Study type: Interventional
• Enrollment: 64 (actual)
• Sponsor: Poznan University of Life Sciences · Academic / Other
• Sex: All
• Age: 17 Years – 30 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study was to verify the effect of 10-day sodium bicarbonate (NaHCO3) and placebo (PLA) supplementation on physical and specific performance capacity, as well as concentrations of the selected biochemical blood markers in trained combat sports athletes, in a randomised, double-blind, placebo-controlled trial.

Detailed description

Sodium bicarbonate (NaHCO3) was proposed as an ergogenic agent, because it improves high-intensity and resistance exercise performance. Until now the major limitation to NaHCO3 supplementation has been the gastrointestinal (GI) side effects. Therefore, this study aims to examine the effect of chronic, progressive-dose NaHCO3 ingestion on physical capacity and specific performance capacity, and concentrations of the selected biochemical blood markers in trained combat sports athletes, in a randomised, double-blind, placebo-controlled trial.

Conditions

• Supplementation
• Sport

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Sodium bicarbonate supplementation	The experimental procedure for each athlete included a 10-day NaHCO3 supplementation in a progressive-dose regimen in order to reduce the likelihood of gastrointestinal side effects (from 25 to 100 mg ∙ kg-1). NaHCO3 was administered in the form of unmarked disk-shaped tablets (Alkala T, SANUM, Poland). The tablets were ingested with at least 250 mL of water and could be either swallowed or dissolved in the mouth. On training days the supplements were taken in the morning, in the evening and 1.5 hours before training session. On rest days the supplements were taken in the morning, in the afternoon and in the evening.
DIETARY_SUPPLEMENT	Placebo treatment	The experimental procedure for each athlete included a 10-day placebo administration. Placebo was ingested with at least 250 mL of water. On training days the supplements were taken in the morning, in the evening and 1.5 hours before training session. On rest days the supplements were taken in the morning, in the afternoon and in the evening.

Timeline

• Start date: 2014-10-10
• Primary completion: 2015-01-20
• Completion: 2015-04-05
• First posted: 2018-01-23
• Last updated: 2018-01-23

Locations

1 site across 1 country: Poland