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Arginine Helps Older Cyclists Improve Performance

Avid cyclists over the age of 50 had an improvement in their performance after taking arginine supplements for three weeks, according to a study just published in the International Society of Sports Nutrition.

“As people age, their exercise capacity may decline – leading in turn to a decline in overall fitness that can impact health,” noted Luigi Gratton, MD, vice president of medical affairs at Herbalife.

A group of 16 male cyclists, aged 50 to 73 years, were randomly assigned to receive either the supplement (Niteworks; Herbalife International, Los Angeles, CA) containing 5.2 grams of L-arginine, or a look-alike placebo and instructed to continue with their usual cycling regimen over the three week study period. After three weeks, those taking the supplement had an increase in their anaerobic threshold – the point at which lactate begins to accumulate in the blood, leading to fatigue.

“Arginine is involved in the production of nitric oxide in the body,” notes Gratton, “and nitric oxide has been associated with the improvement of exercise performance through its beneficial effects on the vascular system.” As people age, production of nitric oxide declines, so the researchers believed that arginine supplementation could support the production of nitric oxide and enhance performance.

The anaerobic threshold of the study subjects was assessed both before and after the three week study period. In those receiving the supplement, their anaerobic threshold increased by 16.7% after one week, and held steady during the three weeks, whereas those in the placebo group experienced no change. “This indicates a potential role for arginine in improving exercise performance in older subjects,” said Gratton, “and improved performance could mean better fitness and healthier lives.”

Niteworks is available to ship now from our online store, where you will also find further articles & product information:

NOTE: The study, conducted at UCLA and funded by Herbalife, used Herbalife’s original formula Niteworks. The current product has a slightly different formula, although no changes were made to the active ingredients.

Niteworks was created based on research conducted by Lou Ignarro, Ph.D., who received the Nobel Prize in 1998 for his work on nitric oxide. Ignarro is a member of the company’s Scientific and Nutrition Advisory Boards.

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Following tremendous feedback from their international  Sports Nutrition seminars, Herbalife will be sponsoring the UK’s first Seminar taking  in March. There are 2 headline speakers, one a leading sports nutritionist and the other a well known coach in the field of cycling. Both speakers will be sharing tips on how to improve performance and the importance of nutrition in an athlete’s performance.

The Seminar is open to all and is aimed at anybody who is interested in knowing more about  the principles of Sports Nutrition, whether you are a distributor who wants to learn about the sports market, a personal Trainer, an amateur Triathlete or even a full time professional.

Date: Wednesday 10th March, 2010
Time: 5:30pm to 9:30pm Dress code: smart casual
Venue: The Renewal Conference Centre, Lode Lane, Solihull, Birmingham B91 2JR

Tickets are £15 per person. Guests can purchase tickets via any Herbalife distributor and Herbalife Distributors can order online at www.myherbalife.com/uk .

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