EFFECTS OF ACUTE DIETARY NITRATE CONSUMPTION ON RUNNING PERFORMANCE ASSESSED IN ‘REAL-WORLD’ ENVIRONMENT
Andrew J. Sheets & Brian S. Snyder,Truman State University, Kirksville, Missouri
Dietary nitrate supplementation has been shown to lower the oxygen cost of exercise and improve exercise performance. PURPOSE: The purpose of this study was to determine if dietary nitrate supplementation in the form of beetroot juice ‘shots’ improved 5 kilometer race performance in an ecologically valid race-like setting. METHODS: 11 male and 2 female runners ran two 5k races, two weeks apart in a double blind, crossover design in which they drank 2 x 70 mL ‘shots’ of concentrated beetroot (~8 mmol Nitrate) juice or a nitrate-depleted beetroot juice placebo 2.5 hours before each race. RESULTS: Beetroot juice consumption resulted in a significantly slower 5k race performance (1371+/-253 s vs. 1350+/-249 s, P=.042). There was no significant difference between the kilometer split times. CONCLUSION: Our study found acute dietary nitrate consumption in the form of beetroot juice resulted in a significantly slower 5k race performance.
Funding provided by Truman State University’s Truscholars Undergraduate Research Program
Sheets, AJ and Snyder, BS
"EFFECTS OF ACUTE DIETARY NITRATE CONSUMPTION ON RUNNING PERFORMANCE ASSESSED IN ‘REAL-WORLD’ ENVIRONMENT,"
International Journal of Exercise Science: Conference Proceedings: Vol. 11
, Article 20.
Available at: http://digitalcommons.wku.edu/ijesab/vol11/iss1/20
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