Document Type
Thesis - Open Access
Award Date
2017
Degree Name
Master of Science (MS)
Department / School
Health and Nutritional Sciences
First Advisor
Matthew Vukovich
Keywords
athlete, inorganic nitrate, time to exhaustion
Abstract
The purpose of this paper was to systematically review the current literature and evaluate the overall efficacy of nitrate supplementation on exercise tolerance and performance by meta-analysis. Studies were eligible for inclusion if they met the following criteria: 1) were an experimental trial published in an English peer-reviewed journal; 2) compared the effects of inorganic nitrate consumption with a non-bioactive supplement control or placebo; 3) used a quantifiable measure of exercise performance; and 4) was carried out in apparently healthy participants without disease. A total of 29 studies were identified that investigated the effects of nitrate supplementation on exercise tolerance or performance in accordance with the criteria outlined. Analysis using time to exhaustion as the outcome variable revealed a significant effect of nitrate supplementation on exercise tolerance ES 0.27 (95% CI: 0.08 – 0.46; P = 0.004) compared to placebo. Analysis using time to complete a specific distance as the outcome variable revealed no significant effect of nitrate supplementation on performance ES 0.06 (95% CI: -0.27 – 0.15; P = 0.5) compared to placebo. Nitrate supplementation is likely to improve exercise tolerance and capacity but not exercise performance. More research is required to determine the optimal dose and duration of nitrate supplementation. It would also be important to consider the type of athlete performing the exercise, and the duration, intensity and mode of the exercise performed as these factors are likely to influence the efficacy of nitrate supplementation.
Library of Congress Subject Headings
Dietary supplements.
Nitrates -- Physiological effect.
Exercise -- Physiological aspects.
Description
Includes bibliographical references (pages 26-29)
Format
application/pdf
Number of Pages
36
Publisher
South Dakota State University
Recommended Citation
Van De Walle, Gavin, "The Effect of Nitrate Supplementation on Exercise Tolerance and Performance: A Systematic Review and Meta-Analysis" (2017). Electronic Theses and Dissertations. 1127.
https://openprairie.sdstate.edu/etd/1127
Rights Statement
