Activate Now
 
ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Decreased levels of vitamin D associated with reduced methylation in African American teens

Sweep Away Senile Cells

PAIN'S SECRET MESSAGE: Why Prince Didn't Need to Die

7 Natural Ways to Prevent Diabetes

8 Hacks to Slash Medication Costs

New Study Shows Optimized Curcumin Stops Inflammation

Relief from Common Digestive Distress

What Foods Can Help Fight the Risk of Chronic Inflammation?

Block The Vascular Origins Of Cognitive Decline

SURVEY: Should Opioids Be Restricted for Chronic Illness?

 
Print Page
Email Article

The dietary flavonoid quercetin increases VO(2max) and endurance capacity – Source: International Journal of Sport Nutrition and Exercise, Feb 2010

  [ 28 votes ]   [ Discuss This Article ]
By J Mark Davis, et al • www.ProHealth.com • March 15, 2010


[Note: fitness can be measured by VO2max – the volume of oxygen per kg of body weight that you can consume while exercising at your maximum capacity.]

Quercetin, a natural polyphenolic flavonoid substance present in a variety of food plants, has been shown in vitro and in animal studies to have widespread health and performance benefits resulting from a combination of biological properties, including antioxidant and anti-inflammatory activity, as well as the ability to increase mitochondrial biogenesis.

Little is known about these effects in humans, however, especially with respect to exercise performance. The authors determined whether quercetin ingestion would enhance maximal aerobic capacity and delay fatigue during prolonged exercise in healthy but untrained participants.

Twelve volunteers were randomly assigned to 1 of 2 treatments:

a. 500 mg of quercetin twice daily dissolved in vitamin-enriched Tang or

b. A nondistinguishable placebo (Tang).

Baseline VO2max and bike-ride times to fatigue were established. Treatments were administered for a period of 7 days using a randomized, double-blind, placebo-controlled, crossover study design. After treatment both VO2max and ride time to fatigue were determined.

Seven days of quercetin feedings were associated with a modest increase in VO2max (3.9% vs. placebo; p < .05) along with a substantial (13.2%) increase in ride time to fatigue (p < .05).

These data suggest that as little as 7 days of quercetin supplementation can increase endurance without exercise training in untrained participants.

These benefits of quercetin may have important implications for enhancement of athletic and military performance. This apparent increase in fitness without exercise training may have implications beyond that of performance enhancement to health promotion and disease prevention.

Source: International Journal of Sport Nutrition and Exercise Metabolism, Feb 2010;20(1):56-62. PMID: 20190352, by Davis JM, Carlstedt CJ, Chen S, Carmichael MD, Murphy EA. Div. of Applied Physiology, Dept. of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, USA. [Email: markd@mailbox.sc.edu]





Post a Comment

Featured Products From the ProHealth Store
Energy NADH™ 12.5mg Quercetin / Bromelain Complex Vitamin D3 Extreme™

Looking for Vitamins, Herbs and Supplements?
Search the ProHealth Store for Hundreds of Natural Health Products


Article Comments



Be the first to comment on this article!

Post a Comment


 
20 Helpful Tips for Cleaning and Organizing When You're Chronically Ill

Featured Products

Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Quercetin / Bromelain Complex Quercetin / Bromelain Complex
Balances Histamine Levels Naturally
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid

Natural Remedies

Strontium - The Missing Mineral for Strong Bones Strontium - The Missing Mineral for Strong Bones
Coconut Oil - Healthy Gifts from the 'Tree of Life' Coconut Oil - Healthy Gifts from the 'Tree of Life'
Can Glycine + Amino Acids Be the Secret to Deep, Rejuvenating Sleep? Can Glycine + Amino Acids Be the Secret to Deep, Rejuvenating Sleep?
Research Links Green Tea to Weight Loss Research Links Green Tea to Weight Loss
Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler

· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE AND SAVE 15% NOW*
Be the first to know about new products, special discounts and the latest health news. *New subscribers only

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2016 ProHealth, Inc. All rights reserved. Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map