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

10 Fibro-Friendly Foods with a Bonus: Beautiful Skin

Fight Back! Win the War Being Waged Against Your Immune System

Studies Show that Magnesium L-threonate Improves Brain Plasticity, Leading to Direct and Significant...

The role of microbiota and intestinal permeability in the pathophysiology of autoimmune and neuroimm...

Clary Sage Oil May Be Pricey, but Its Benefits Are Priceless

Component of red wine, grapes can help to reduce inflammation, study finds

Poly MVA: A Novel Therapy for Increasing Energy, Repairing DNA, and Promoting Overall Health

Pumpkin Pie Turmeric Breakfast Smoothie - Vegan + Gluten-Free

Vitamin D supplementation extends life in mouse model of Huntington's disease

What’s Fenugreek Good For?

Print Page
Email Article

Post-exertional Symptomology in Chronic Fatigue Syndrome

  [ 358 votes ]   [ Discuss This Article ]
By Travis L Stiles, et al. • • June 24, 2007

[Note: See also related abstract "Metabolic and Neurocognitive Responses to an Exercise Challenge in Chronic Fatigue Syndrome (CFS)".]

Journal: Medicine & Science in Sports & Exercise: Volume 39(5) Supplement, May 2007, p S445

Authors and affiliation: Stiles TL, Snell CR, Stevens SR, Moran M, VanNess JM. University of the Pacific, Stockton, California. Supported by the CFIDS Association of America. [E-mail:]

Symptom exacerbation following physical stress has been documented in illnesses such as multiple sclerosis (MS), lupus and rheumatoid arthritis (RA). Similar phenomenology has been reported in CFS but is not well understood.

Purpose: The purpose of this study was to explore symptom exacerbation following an exercise challenge in CFS patients relative to a sedentary control population.

Methods: Forty female subjects (n=40), 20 CFS and 20 matched sedentary controls served as subjects. All participants underwent a graded maximal cardiopulmonary exercise test (CPX).

Two questionnaires, Short Form-36 (SF-36) and a series of open-ended questions, were completed 7 days after the exercise challenge to assess post-exertional differences between groups.

The open-ended questions pertained to symptoms experienced following the test and time taken to recover from any testing effects.

SF-36 data were analyzed using a multivariate analysis. Written questionnaire responses were evaluated by determining recovery time in days as well as number and type of symptoms experienced.


SF-36 analysis found statistical significance across all 8 health domains measured between groups (p <.01), but no effects were found for the exercise test.

Analysis of the open-ended questionnaires revealed that within 24 hours of the exercise challenge, 85% of controls indicated full recovery in contrast to 0% of CFS patients. The remaining 15% of controls recovered within 48 hours of the test as opposed to only one CFS patient.

Clear differences in number and type of reported symptoms were also found between groups.

Conclusions: The results of this study indicate that CFS patients suffer symptom exacerbation following physical stress. As with MS, lupus and RA, post-exertional symptom exacerbation appears to be both a real and incapacitating feature of the syndrome. The delayed recovery response evoked by a single bout of exercise stress is distinctly different from that of sedentary controls.

The debilitating effects experienced by these patients help to explain activity avoidance, which should be considered when prescribing exercise and activity management programs for CFS patients.

Post a Comment

Featured Products From the ProHealth Store
Vitamin D3 Extreme™ FibroSleep™ Mitochondria Ignite™ with NT Factor®

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

Natural Pain Relief Supplements

Featured Products

Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health

Natural Remedies

The Curcumin Revolution: 'Golden' Ticket to Better Health The Curcumin Revolution: 'Golden' Ticket to Better Health
Natural Relief for Soreness, Pain and Swelling - Putting Out the Fire Natural Relief for Soreness, Pain and Swelling - Putting Out the Fire
Milk Thistle: Trusted Support for Health & Healing in a Toxic World Milk Thistle: Trusted Support for Health & Healing in a Toxic World
Live Without Anxiety or Stress Live Without Anxiety or Stress
Improve Cardiovascular and Metabolic Health with Omega-7 Improve Cardiovascular and Metabolic Health with Omega-7

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

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
Credit Card Processing
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. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map