Thursday 12/18/2014

mybesthealthportal.net : The leading source for health, fitness, weight loss, nutrition and anti aging health and wellness information


CONNECT :

Top Fitness Headlines

Get a Thick V Taper Back with Bent Over …

Get a Thick V Taper Back with Bent Over Rows

The bent over row is an excellent exercise for the development of a and powerful back. It is also a ... Read more

Taking this Supplement May Give Older Athletes an Competitive Edge

Rate this item
(0 votes)

lance-armstrong-supplementCyclists who are 50 and older may be able to ride farther and faster if they take a commercially available supplement containing the amino acid arginine and antioxidants that help boost the body's natural exercise capabilities, according to new research conducted at the University of California at Los Angeles.

"The loss of exercise capacity with age often results in a reduction in physical fitness and more rapid [cell death]," says researcher Zhaoping Li, MD. "A dietary supplement that increases exercise capacity might help to preserve physical fitness by optimizing performance and improving general health and well being in older people."

Our bodies' production of nitric oxide tends to dim with advancing age. Nitric oxide helps stimulate the blood vessels around the heart and other organs to dilate, and it also plays a role in increasing exercise capacity.

Arginine is a precursor to nitric oxide development. Nitric oxide production is also hampered by damaging free radicals. Antioxidants, such as those contained in the new supplement, sop up these free radicals, stopping them in their tracks. The new supplement hits nitric oxide from both ends -- triggering its production with arginine and preventing its destruction with antioxidants.

Exercise Capacity and Nitric Oxide niteworks by herbalife 

In the new study of 16 male cyclists aged 50 to 73, men who were given Niteworks, made by Herbalife International. The supplement,  a lemon-flavored powder that is mixed with water,  contains 5.2 grams of L-arginine and L-citrulline, 300 milligrams of L-taurine, 500 milligrams of vitamin C, 400 international units (IU) of vitamin E, 400 micrograms of folic acid, 10 milligrams of alpha lipoic acid, and 50 milligrams of lemon balm extract. According to the manufacturer the key benefits of the product include:

  • Enhance blood flow to the heart*
  • Keep blood vessels toned, flexible and youthful for improved circulation*
  • Support healthy blood pressure levels already within a normal range*

"We have just studied elderly since human exercise capacity declines with advancing age and many individuals lose the inclination to participate in regular physical activity," acceding to Li. "Our study has shown that the supplements help the muscles work much more efficiently in our study population.

Study participants took the supplements at bedtime, which is when nitric oxide levels are lowest. Arginine may dilate the blood vessels and cause dizziness when standing, which is another reason to take the supplement before bed, Li says.

The cyclists taking the supplement showed a 16.7% increase in their anaerobic threshold at three weeks. By contrast, their counterparts who received the placebo did not see any increase in their anaerobic thresholds. Anaerobic threshold is the point at which lactic acid starts to accumulate in the muscles and is known as a powerful predictor of performance in aerobic exercise.

"It is also unclear if arginine supplementation in the sedentary population can have the same results," the study authors write. They say further research is needed.

The study was published  in the Journal of the International Society of Sports Nutrition.

SOURCES:
 
Zhaoping Li, MD, the University of California at Los Angeles.

Chen, S. Journal of the International Society of Sports Nutrition, 2010; vol 7: p 13.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Last modified on Saturday, 11 August 2012 12:50
Login to post comments

Sponsors

Advertisers

RSS

Most Viewed Articles

Most Recent Comments

Stock Market

Loading
Chart
o Dow Jones 17,356.87 ▲288.00 (1.69%)
o S&P 500 2,012.89 ▲40.15 (2.04%)
o NASDAQ 4,644.31 ▲96.48 (2.12%)
INDEXDJX:.DJI

Dow Jones

Company ID [INDEXDJX:.DJI] Last trade:17,356.87 Trade time:4:31PM EST Value change:▲288.00 (1.69%)
INDEXSP:.INX

S&P 500

Company ID [INDEXSP:.INX] Last trade:2,012.89 Trade time:4:31PM EST Value change:▲40.15 (2.04%)
INDEXNASDAQ:.IXIC

NASDAQ

Company ID [INDEXNASDAQ:.IXIC] Last trade:4,644.31 Trade time:5:15PM EST Value change:▲96.48 (2.12%)

Facebook Fans

Tools

Nutrition Tools

nutrition tools
Our nutrition tools include free food management systems, meal calculators and a search tool that provides nutrient and calorie content of 7,146 different foods.

Weight Loss Tools

weight-loss-tools
Our weight loss tools and calculators can give you the edge you need to can help you reach your weight loss goals and maintain your weight . They are free to and easy to use.

Metabolic Tools

bmi_tool
Use our free metabolic tools and calculators to determine your ideal body weight, your target heart rate, BMI, BMR and more.

Health Tools

doctors_health_tools
Our health tools and health calculators can help you reach your goals and control your health, nutrition and more. It's easy and free to get started.
External links are provided for reference purposes. The World News II is not responsible for the content of external Internet sites. Template Design © Joomla Templates | GavickPro. All rights reserved.

Use of this web site constitutes acceptance of the MyBestHealthPortal.com Terms of Service and Privacy Policy. The information on this site is for educational use only. It should not be used as a substitute for professional medical advice, diagnosis or treatment. Placement of product information or advertisements does not constitute and endorsement of the products of services described. MyBestHealthPortal.com is a registered trademark of the Behar Health Network.

Login or Register

Facebook user?

You can use your Facebook account to sign into our site.

Log in with Facebook

LOG IN

Register

User Registration
or Cancel