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dc.contributor.authorFernández-Elias, Valentín E.
dc.contributor.authorCourel-Ibañez, Javier
dc.contributor.authorPérez-Lopez, Alberto
dc.contributor.authorJodra, Pablo
dc.contributor.authorMoreno-Pérez, Victor
dc.contributor.authorDel Coso, Juan
dc.contributor.authorLópez Samanés, Álvaro
dc.description.abstractBeetroot juice is a source of dietary nitrate (NO3-) recognised as a potential ergogenic aid to enhance tolerance during endurance exercise of submaximal-to-maximal intensity. However, little is known about the effects of beetroot juice on exercise performance in intermittent sports such as tennis. The present study aimed to determine the effect of acute beetroot juice supplementation on movement patterns during a competitive tennis match in professional players. In a double-blind and randomised experiment, nine professional tennis players performed two experimental trials 3 h after ingesting either 70 mL of a commercially-available concentrated beetroot juice (6.4 mmol NO3-) or placebo (0.005 mmol NO3-). In each experimental trial, players completed a 3-set tennis match and two performance tests (i.e., serve speed and isometric handgrip strength) before and after the match. Match-play running performance was recorded using wearable GPS and accelerometer units. In comparison to the placebo trial, the acute beetroot juice supplementation did not modify any match-play running performance (p= 0.178 to 0.997, d = 0.01 to 0.42). Furthermore, beetroot juice supplementation did not alter the pre-topost match change in serve speed (p = 0.663, ηp2 = 0.03) or isometric handgrip strength (p = 0.219, ηp2 = 0.18). The current results indicated that acute ingestion of a commercialised shot of nitrate-rich beetroot juice (70 mL containing 6.4 mmol of NO3-) did not produce any performance benefit on tennis match play. Thus, acute beetroot juice supplementation seems an ergogenic aid with little value to enhance physical performance in professional tennis
dc.publisherJournal of the American College of Nutritionspa
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subjectRacquet sportsspa
dc.subjectElite athletespa
dc.subjectSports performancespa
dc.subjectExternal loadspa
dc.titleAcute beetroot juice supplementation does not improve match-play activity in professional tennis
dc.description.extent680 KBspa

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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España