Next Article in Journal
A Comparison between Australian Football League (AFL) Injuries in Australian Indigenous versus Non-indigenous Players
Previous Article in Journal
Should Rehabilitation Specialists Use External Focus Instructions When Motor Learning Is Fostered? A Systematic Review
Sports 2013, 1(3), 55-68; doi:10.3390/sports1030055
Article

Acute Effects of Polyphenols from Cranberries and Grape Seeds on Endothelial Function and Performance in Elite Athletes

,
,
,
,
 and
*
The Institute on Nutrition and Functional Foods (INAF), Laval University, Québec G1V 0A6, Canada
* Author to whom correspondence should be addressed.
Received: 11 June 2013 / Revised: 3 July 2013 / Accepted: 3 July 2013 / Published: 12 July 2013
View Full-Text   |   Download PDF [449 KB, uploaded 12 July 2013]   |   Browse Figures
SciFeed

Abstract

We examined how intake of polyphenols modifies brachial artery flow-mediated dilation (FMD) at rest, and cycling anaerobic performance, in elite athletes. In the first randomized cross-over study, FMD was measured over a three-hour period on two occasions in eight elite male and female athletes after acute consumption of either polyphenols from cranberries and grape seeds (600 mg) or a polyphenol-free placebo drink. Consumption of the polyphenol-rich drink led to a significant increase in FMD compared to placebo (p = 0.02), with a peak at 60 min. In a second study, 12 elite male and female athletes completed a three-kilometer time trial (TT) on an ergocycle on two occasions in random order, either after consumption of 800 mg of polyphenols or a placebo. Acute intake of the polyphenol extract had no impact on the three-kilometer time trial completion. However, plasma lactate levels were significantly lower before and after the TT when subjects consumed the polyphenols vs. placebo (p < 0.05). Results suggest that polyphenols from cranberries and grape seeds acutely modifies FMD at rest in elite athletes but this does not translate into enhanced cycling anaerobic performance.
Keywords: polyphenol; athlete; endothelial function; FMD polyphenol; athlete; endothelial function; FMD
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
RIS
MDPI and ACS Style

Labonté, K.; Couillard, C.; Motard-Bélanger, A.; Paradis, M.-E.; Couture, P.; Lamarche, B. Acute Effects of Polyphenols from Cranberries and Grape Seeds on Endothelial Function and Performance in Elite Athletes. Sports 2013, 1, 55-68.

View more citation formats

Related Articles

Article Metrics

Comments

[Return to top]
Sports EISSN 2075-4663 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert