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.

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 July 22, 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 July 22, 2014).

Share This




More Health & Medicine News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
Powered by NewsLook.com
$23.6 Billion Awarded To Widow In Smoking Lawsuit

$23.6 Billion Awarded To Widow In Smoking Lawsuit

Newsy (July 20, 2014) Cynthia Robinson claims R.J. Reynolds Tobacco Company hid the health and addiction risks of its products, leading to the death of her husband in 1996. Video provided by Newsy
Powered by NewsLook.com
Tooth Plaque Provides Insight Into Diets Of Ancient People

Tooth Plaque Provides Insight Into Diets Of Ancient People

Newsy (July 19, 2014) Research on plaque from ancient teeth shows that our prehistoric ancestor's had a detailed understanding of plants long before developing agriculture. Video provided by Newsy
Powered by NewsLook.com
Contaminated Water Kills 3 Babies in South African Town

Contaminated Water Kills 3 Babies in South African Town

AFP (July 18, 2014) Contaminated water in South Africa's northwestern town of Bloemhof kills three babies and hospitalises over 500 people. The incident highlights growing fears over water safety in South Africa. Duration: 02:22 Video provided by AFP
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:
from the past week

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