Abstract
The aim of this study was the assessment of progressive low-dose sodium bicarbonate (NaHCO3) supplementation on the anaerobic indices in two bouts of Wingate tests (WT) separated by wrestling-specific performance test and assessing the gender differences in response. Fifty-one (18 F) wrestlers completed a randomized trial of either a NaHCO3 (up to 100 mg·kg−1) or a placebo for 10 days. Before and after treatment, athletes completed an exercise protocol that comprised, in sequence, the first WT1, dummy throw test (DT), and second WT2. The number of completed throws increased significantly in males from 19.3 ± 2.6 NaHCO3pre to 21.7 ± 2.9 NaHCO3post. ΔWT2-WT1 improved particularly in the midsection of 30-s WT on NaHCO3. However, no significant differences were found in peak power (PP), power drop (PD) and average power (AP) (analyzed separately for each WT), and ΔWT2-WT1 in PP and PD. Interaction with gender was significant for AP, PP and PD, every second of WT1 and WT2, as well as DT test. In conclusion, our study suggests that the response to NaHCO3 may be gender-specific and progressive low-dose NaHCO3 supplementation allows the advantageous strengthening of wrestling-specific performance in males. It can also lead to maintenance of high anaerobic power mainly in the midsection of the 30-s Wingate test.
Highlights
The aim of this study was the assessment of progressive low-dose sodium bicarbonate (NaHCO3) supplementation on the anaerobic indices in two bouts of Wingate tests (WT) separated by wrestlingspecific performance test and assessing the gender differences in response
Δ WT2-WT1 in average power (AP), peak power (PP) and power drop (PD) were not significantly affected by NaHCO3 and PLA treatments in both genders (Table 2)
In this study we showed that progressive supplementation of up to 100 mg·kg−1 sodium bicarbonate did not significantly influence AP, PD and PP characteristics in two Wingate tests
Summary
The aim of this study was the assessment of progressive low-dose sodium bicarbonate (NaHCO3) supplementation on the anaerobic indices in two bouts of Wingate tests (WT) separated by wrestlingspecific performance test and assessing the gender differences in response. Because of the greater pH gradient between the muscle cells and extracellular fluids, H+ produced during exercise are transported more leads to greater efflux of H+ and La− from the exercising muscle[3,4,5] This is important because intramuscular acidosis can cause muscular fatigue based on different mechanisms: (1) impaired glycolysis because of reduced activity of key enzymes such as glycogen phosphorylase and phosphofructokinase; (2) hindered muscle’s contraction capacity due to the competition of H+ with calcium ions; (3) inhibition of oxidative phosphorylation; (4) compromised resynthesis of phosphocreatine at low pH6. In a previous study by our lab, a dose of up to 0.1 g·kg−1 NaHCO3 had no effect on wrestling performance in specific dummy throw test (DT) compared to PLA13. Even though the doses used in the study seemed to be too small to improve the power in two Wingate tests (WT) and the number of wrestling suplex throws, the time-to-peak power decreased significantly with NaHCO3, but only in the second WT13.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
