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

|
|
|
|

Trending News

Strengthening DNA to Prevent Inflammation, Heart Disease, Dementia and More

Optimal Prostate Defense Requires a Multi-Modal Strategy

The Most Powerful Natural Antioxidant Discovered to Date - Hydroxytyrosol

How Lipoic Acid Preserves Critical Mitochondrial Function

Omega-3 Fatty Acids Increase Brain Volume

New Option For Chronic Fatigue Syndrome

Living Longer, Healthier Lives with Resveratrol

Iodine: The Forgotten Medicine

Lipoic Acid Reverses Mitochondrial Decay

Stop Bacteria With Nature's Antibiotics

 
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 Immune Support Supplements

Featured Products

Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Optimized Curcumin Longvida® by ProHealth Optimized Curcumin Longvida® by ProHealth
Supports Cognition, Memory & Overall Health
FibroSleep™ by ProHealth FibroSleep™ by ProHealth
The All-in-One Natural Sleep Aid
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%

Natural Remedies

Dreaming of a Good Night's Sleep? Dreaming of a Good Night's Sleep?
Repair Damaged Mitochondria and Reduce Fatigue Up to 45% Repair Damaged Mitochondria and Reduce Fatigue Up to 45%
Itching to Find Dry Skin Relief? Itching to Find Dry Skin Relief?
Broad Spectrum Protection Against Brain Aging Broad Spectrum Protection Against Brain Aging
Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing

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