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

Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Delayed diagnosis of Lyme disease has devastating effect on patients

Missing Link Found Between Brain, Immune System - Major Disease Implications

National Institutes Of Health Discovers Protective Effects Of Coffee

Fatigue & Fibro Fog: Could You Have a B-12 Deficiency?

Association of lyme disease and schizoaffective disorder, bipolar type: Is it inflammation mediated?

Adapt to Stress Naturally with These Power Herbs

Curcumin Made 65X More Bioavailable - Modern Take on a "Golden" Spice Busts Brain Fog, Joint & Body ...

Researchers’ discovery may explain difficulty in treating Lyme disease

Discovering Coffee's Unique Health Benefits

Why So Many Arthritis Sufferers Fail to Find Relief

 
Print Page
Email Article

Blood pressure variability and closed-loop baroreflex assessment in adolescent chronic fatigue syndrome during supine rest and orthostatic stress – Source: European Journal of Applied Physiology, Oct 2, 2010

  [ 6 votes ]   [ Discuss This Article ]
By VB Wyller, et al. • www.ProHealth.com • October 5, 2010


Hemodynamic abnormalities have been documented in the chronic fatigue syndrome (CFS), indicating functional disturbances of the autonomic nervous system responsible for cardiovascular regulation.

The aim of this study was to explore blood pressure variability and closed-loop baroreflex function at rest and during mild orthostatic stress in adolescents with CFS. [Stress on 'automatic' cardiovascular regulation associated with standing upright from a prone position.]

We included a consecutive sample of 14 adolescents 12-18 years old with CFS diagnosed according to a thorough and standardized set of investigations, and 56 healthy control subjects of equal sex and age distribution.

Heart rate and blood pressure were recorded continuously and non-invasively during supine rest and during lower body negative pressure (LBNP) of -20 mmHg to simulate mild orthostatic stress.

Indices of blood pressure variability and baroreflex function (alpha-gain) were computed from monovariate and bivariate spectra in the low-frequency (LF) band (0.04-0.15 Hz) and the high-frequency (HF) band (0.15-0.50 Hz), using an autoregressive algorithm.

Variability of systolic blood pressure [pressure when the heart is contracting] in the HF range was lower among CFS patients as compared to controls both at rest and during LBNP.

During LBNP, compared to controls, alpha-gain HF decreased more, and alpha-gain LF and the ratio of alpha-gain LF/alpha-gain HF increased more in CFS patients, all suggesting greater shift from parasympathetic to sympathetic baroreflex control.

CFS in adolescents is characterized by reduced systolic blood pressure variability and a sympathetic predominance of baroreflex heart rate control during orthostatic stress.

These findings may have implications for the pathophysiology of CFS in adolescents.

Source: European Journal of Applied Physiology, Oct 2, 2010. PMID: 20890710, by Wyller VB, Barbieri R, Saul JP. Department of Pediatrics, Rikshospitalet University Hospital, Oslo, Norway. [Email: brwylle@online.no]




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 Vitamins and Supplements

Featured Products

Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function

Natural Remedies

Vitamin K-2 – A Key Player in Cardiovascular and Bone Health Vitamin K-2 – A Key Player in Cardiovascular and Bone Health
Sunshine Vitamin Has D-lightful Health Benefits Sunshine Vitamin Has D-lightful Health Benefits
Dreaming of a Good Night's Sleep? Dreaming of a Good Night's Sleep?
When a Negative is Positive - Goodnighties Recovery Sleepwear When a Negative is Positive - Goodnighties Recovery Sleepwear
Complete and Natural Menopause Relief Complete and Natural Menopause Relief

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