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

Inflammation Disrupts Memory - What Can You Do to Protect Your Brain?

Artificial sweeteners linked to risk of weight gain, heart disease and other health issues

All About Ginkgo Biloba: Benefits of This Timeless Herbal Supplement

Yarrow Oil: Here's Why It Deserves a Place in Your First-Aid Kit

Vitamin D supplement use associated with lower risk of breast cancer

Carnitine deficiency suggested as contributor to autism

Lutein — An Important Nutrient for Eye and Brain Health

Hop Oil: A Safe Sleep Aide

White Camphor Oil: The Purest Camphor Oil

Taurine: Facts About This Crucial Amino Acid

 
Print Page
Email Article

Abstract: Blood Volume and Its Relation to Peak O(2) Consumption and Physical Activity in Patients with Chronic Fatigue

  [ 42 votes ]   [ Discuss This Article ]
By William B. Farquhar [1,2], Brian E. Hunt [2], J. Andrew Taylor • www.ProHealth.com • December 21, 2001





Journal: Am J Physiol Heart Circ Physiol 2002 Jan;282(1):H66-H71. NLM Citation: PMID: 11748048.

Author Affiliations: [1] Center for Autonomic and Peripheral Nerve Disorders, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02215; and [2] Laboratory for Cardiovascular Research, Hebrew Rehabilitation Center for Aged, Research and Training Institute, Harvard Medical School Division on Aging, Boston, Massachusetts 02131


Individuals with chronic fatigue syndrome (CFS) experience a number of
somatic complaints including severe, disabling fatigue, and exercise
intolerance. We hypothesized that hypovolemia, through its interaction
with central hemodynamics, would contribute to the exercise intolerance
associated with this disorder.

We examined blood volume, peak aerobic power, habitual physical activity, fatigue level, and their interrelations to understand the physiological basis of this disorder. Seventeen patients who met the Centers for Disease Control criteria for CFS and 17 age-matched controls participated in the study.

Blood volume was assessed using a single bolus injection of Evans blue dye. Peak oxygen consumption was measured during exercise on an upright cycle ergometer. Supine cardiac output and stroke volumes were measured using CO(2) rebreathing. Questionnaires were used to assess habitual physical activity and fatigue.

Patients displayed a trend for a 9% lower blood volume (58.3 +/- 2.1 vs. 64.2 +/- 2.5 ml/kg, P = 0.084) and had a 35% lower peak oxygen
consumption (22.0 +/- 1.2 vs. 33.6 +/- 1.9 ml/kg, P < 0.001). These two
variables were highly related within the patients (r = 0.835, P < 0.001) and the controls (r = 0.850, P < 0.001). Peak ventilation and habitual physical activity were significantly lower in the patients. Fatigue level was not related to any of the measured physiological parameters within the CFS group.

In conclusion, individuals with CFS have a significantly lower peak
oxygen consumption and an insignificant trend toward lower blood volume
compared with controls. These variables were highly related in both
subject groups, indicating that blood volume is a strong physiological
correlate of peak oxygen consumption in patients with CFS.




Post a Comment

Featured Products From the ProHealth Store
Ultra ATP+, Double Strength Vitamin D3 Extreme™ Ultra EPA  - Fish Oil


Article Comments



Be the first to comment on this article!

Post a Comment


 
NAD+ Ignite with Niagen

Featured Products

Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength

Natural Remedies

Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue
Sleep Like a Baby in Nature's Cradle Sleep Like a Baby in Nature's Cradle
Herbal Inflammation Management for Whole Body Health Herbal Inflammation Management for Whole Body Health
Are You Obtaining the Proper Enzymes? Are You Obtaining the Proper Enzymes?
Fatigue & Fibro Fog: Could You Have a B-12 Deficiency? Fatigue & Fibro Fog: Could You Have a B-12 Deficiency?

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

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

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

© 2017 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map