ProHealth me-cfs Vitamin and Natural Supplement Store and Health
Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help

|
|

Trending News

Interview: Jennifer Brea Talks About Obstacles, Adjustments, and Inspiration

Post-Exertional Debility is an Important Symptom during Myalgic Encephalomyelitis

Burmeister Wins Lawsuit: Court Rules Government Must Produce IOM Documents

Is the physical examination normal in CFS?

Traditional Chinese medicine for chronic fatigue syndrome: A systematic review of randomized clinica...

Symptoms of autonomic dysfunction in chronic fatigue syndrome

The Cheney Protocol for Chronic Fatigue Syndrome

Irritable bowel syndrome and chronic fatigue six years after Giardia infection: a controlled prospec...

False Allegations of Child Abuse in Cases of Childhood Myalgic Encephalomyelitis (ME)

Your Rights When a Disability Claim is Terminated

 
Print Page
Email Article

Decreased oxygen extraction during cardiopulmonary exercise test in patients with chronic fatigue syndrome

  [ 18 votes ]   [ Discuss This Article ]
By R.C. Vermeulen and I.W. Vermeulen van Eck • www.ProHealth.com • February 1, 2014


Editor's Comment: The 2-day CPET studies conducted by Staci Stevens and Christopher Snell at the Workwell Foundation, and by Betsy Keller at Ithaca College, have shown deficits in oxygen uptake in ME/CFS patients. This study examined data from 440 participants and concluded that these deficits were indicative of reduced mitochondrial function. "The low oxygen extraction during exercise was also reported in mitochondrial pathology, systemic lupus erythematosus, HIV, and myophosphorylase deficiency." Significantly, the researchers did not find an association between exercise intolerance and deconditioning in ME/CFS patients.
 
Note: You can read the full text of this study HERE.

By R.C. Vermeulen and I.W. Vermeulen van Eck 
 
Abstract
 
BACKGROUND: The insufficient metabolic adaptation to exercise in Chronic Fatigue Syndrome (CFS) is still being debated and poorly understood.
 
METHODS: We analysed the cardiopulmonary exercise tests of CFS patients, idiopathic chronic fatigue (CFI) patients and healthy visitors. Continuous non-invasive measurement of the cardiac output by Nexfin(R) (BMEYE B.V. Amsterdam, the Netherlands) was added to the cardiopulmonary exercise tests. The peak oxygen extraction by muscle cells and the increase of cardiac output relative to the increase of oxygen uptake (DeltaQ'/DeltaV'O2) were measured, calculated from the cardiac output and the oxygen uptake during incremental exercise.
 
RESULTS: The peak oxygen extraction by muscle cells was 10.83 +/- 2.80 ml/100ml in 178 CFS women, 11.62 +/- 2.90 ml/100ml in 172 CFI, and 13.45 +/- 2.72 ml/100ml in 11 healthy women (ANOVA: P=0.001), 13.66 +/- 3.31ml/100ml in 25 CFS men, 14.63 +/- 4.38 ml/100ml in 51 CFI, and 19.52 +/- 6.53 ml/100ml in 7 healthy men (ANOVA: P=0.008).The DeltaQ'/DeltaV'O2 was > 6 L/L (normal DeltaQ'/DeltaV'O2 [almost equal to] 5 L/L) in 70% of the patients and in 22% of the healthy group.
 
CONCLUSION: Low oxygen uptake by muscle cells causes exercise intolerance in a majority of CFS patients, indicating insufficient metabolic adaptation to incremental exercise. The high increase of the cardiac output relative to the increase of oxygen uptake argues against deconditioning as a cause for physical impairment in these patients.
 
Source: Vermeulen RC, Vermeulen van Eck IW. Decreased oxygen extraction during cardiopulmonary exercise test in patients with chronic fatigue syndrome. J Transl Med. 2014 Jan 23;12(1):20. [Epub ahead of print] http://www.ncbi.nlm.nih.gov/pubmed/24456560



Please Discuss This Article:   Post a Comment 



[ Be the first to comment on this article ]




 
Free Chronic Fatigue Syndrome and Fibromyalgia Newsletters
Subscribe to
Our FREE
Newsletter
Subscribe Now!
Receive up-to-date ME/CFS & Fibromyalgia treatment and research news
 Privacy Guaranteed  |  View Archives

Save on Vitamin B-12

Featured Products

Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
B-12 Extreme™ B-12 Extreme™
The Most Potent Vitamin B-12 on Earth
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
MitoQ® MitoQ®
Powerful Antioxidant Support to Mitochondria

Natural Remedies

Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10 Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10
Research Links Green Tea to Weight Loss Research Links Green Tea to Weight Loss
Protect Against Sun-Induced Skin Aging From The Inside Out Protect Against Sun-Induced Skin Aging From The Inside Out
Reversing Neurodegeneration with a New Magnesium Compound Reversing Neurodegeneration with a New Magnesium Compound
Natural Support for Mood, Sleep and Mental Focus? L-theanine Natural Support for Mood, Sleep and Mental Focus? L-theanine

FIBROMYALGIA RESOURCES
What is Fibromyalgia?
Fibromyalgia 101
Fibromyalgia Symptoms
Fibromyalgia Treatments
| CFS RESOURCES
What is CFS?
ME/CFS 101
ME/CFS Symptoms
ME/CFS Treatments
| FORUMS
Fibromyalgia
ME/CFS
ADVANCED MEDICAL LABS
WHOLESALE  |  AFFILIATES
GUARANTEE
CONTACT US
PRIVACY
RSS
SITE MAP
ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus
Credit Card Processing