Featured Research

from universities, journals, and other organizations

Supplement produces a 'striking' endurance boost

Date:
August 26, 2010
Source:
University of Exeter
Summary:
Taking a dietary supplement to boost nitric oxide in the body can significantly boost stamina during high-intensity exercise. The study has important implications for athletes, as results suggest that taking the supplement can allow people to exercise up to 20 percent longer and could produce a 1-2 percent improvement in race times.

Beets. Taking a dietary supplement to boost nitric oxide in the body can significantly boost stamina during high-intensity exercise. Earlier research showed that the high nitrate content of beetroot juice, which also boosts nitric oxide in the body, has a similar effect on performance.
Credit: iStockphoto/Joe Biafore

Research from the University of Exeter has revealed taking a dietary supplement to boost nitric oxide in the body can significantly boost stamina during high-intensity exercise.

Related Articles


The study has important implications for athletes, as results suggest that taking the supplement can allow people to exercise up to 20% longer and could produce a 1-2% improvement in race times.

This comes on the back of previous research from Exeter which showed that the high nitrate content of beetroot juice, which also boosts nitric oxide in the body, has a similar effect on performance.

However, the latest study gets the nitric oxide into the body through a different biological process -- and now the researchers are hoping to find out whether combining the two methods could bring an even greater improvement in athletic performance.

Professor Andrew Jones, from the University's School of Sport and Health Sciences, said: "The research found that when the dietary supplement was used there was a striking increase in performance by altering the use of oxygen during exercise.

"This is important for endurance athletes as we would expect the supplement to bring a 1-2% improvement in race times. While this may seem small, this is a very meaningful improvement -- particularly at elite levels where small gains can be the difference between winning and losing."

For the research, nine healthy males were put through several different physical challenges on a cycling ergometer to measure their performance under different levels of exercise intensity.

Participants were randomly assigned to take either a blackcurrant cordial placebo drink or the genuine supplement, which was Ark 1 from Arkworld International Limited -- which contains the L-arginine amino acid which enhances the production of nitric oxide in the body.

The report, published online by the Journal of Applied Physiology, found taking the supplement:

  • Improves severe-intensity exercise endurance by 20%
  • Significantly reduces systolic blood pressure
  • Reduces the oxygen cost of exercise

The dietary supplement used in the study is known as Ark 1 and is distributed by 'Arkworld International Limited'.


Story Source:

The above story is based on materials provided by University of Exeter. Note: Materials may be edited for content and length.


Journal Reference:

  1. Stephen J. Bailey, Paul G. Winyard, Anni Vanhatalo, Jamie R. Blackwell, Fred J. DiMenna, Daryl Paul Wilkerson, and Andrew M. Jones. Acute L-arginine supplementation reduces the O2 cost of moderate-intensity exercise and enhances high-intensity exercise tolerance. Journal of Applied Physiology, 2010; DOI: 10.1152/japplphysiol.00503.2010

Cite This Page:

University of Exeter. "Supplement produces a 'striking' endurance boost." ScienceDaily. ScienceDaily, 26 August 2010. <www.sciencedaily.com/releases/2010/08/100826104137.htm>.
University of Exeter. (2010, August 26). Supplement produces a 'striking' endurance boost. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2010/08/100826104137.htm
University of Exeter. "Supplement produces a 'striking' endurance boost." ScienceDaily. www.sciencedaily.com/releases/2010/08/100826104137.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Experimental Ebola Vaccine Shows Promise In Human Trial

Experimental Ebola Vaccine Shows Promise In Human Trial

Newsy (Nov. 27, 2014) — A recent test of a prototype Ebola vaccine generated an immune response to the disease in subjects. Video provided by Newsy
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins