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

Is a Good Night's Sleep at the Top of Your Wishlist?

Ashwagandha Helps Hormones - Aids Arthritis

Why You Should Be Eating More Porcini Mushrooms

A Breathalyzer for Disease?

How Bacopa Can Help Improve Your Cognitive Function

Black Tea Is Great for Your Gut

Magnesium Reduces Diabetes and Helps Keep You Young

Lavender Aromatherapy Can Ease Pre-Op Anxiety

Mint: Learn More About This Refreshing and Invigorating Herb

Give Your Health a Much-Needed Boost With Geranium

 
Print Page
Email Article

Reduced complexity of activity patterns in patients with Chronic Fatigue Syndrome: A case control study – Source: BioPsychoSocial Medicine, Jun 2, 2009

  [ 2 votes ]   [ 1 Comment ]
By Christopher Burton, et al. • www.ProHealth.com • June 3, 2009


[Note: To read this entire open access article free, click here.]

Background: Chronic fatigue syndrome (CFS) is an illness characterized by pervasive physical and mental fatigue without specific identified pathological changes. Many patients with CFS show reduced physical activity which, though quantifiable, has yielded little information to date. Nonlinear dynamic analysis of physiological data can be used to measure complexity in terms of dissimilarity within timescales and similarity across timescales. A reduction in these objective measures has been associated with disease and ageing.

We aimed to test the hypothesis that activity patterns of patients with CFS would show reduced complexity compared to healthy controls.

Methods: We analyzed continuous activity data over 12 days from 42 patients with CFS and 21 matched healthy controls. We estimated complexity in two ways. Measuring:

• Dissimilarity within timescales by calculating entropy after a symbolic dynamic transformation of the data

• And similarity across timescales by calculating the fractal dimension using allometric aggregation.

Results: CFS cases showed reduced complexity compared to controls, as evidenced by reduced dissimilarity within timescales (mean (SD) Renyi entropy 4.05 (0.21) vs. 4.30 (0.09), t=-6.6, p<0.001) and reduced similarity across timescales (fractal dimension 1.19 (0.04) vs. 1.14 (0.04), t = 4.2, p<0.001). This reduction in complexity persisted after adjustment for total activity.

Conclusions:

• Patients with CFS show evidence of reduced complexity of activity patterns.

• Measures of complexity applied to activity have potential value as objective indicators for CFS.

Source: BioPsychoSocial Medicine, Jun 2, 2009; 3:7 doi:10.1186/1751-3-7, by Burton C, Knoop H, Popovic N, Sharpe M, Bleijenberg G. Division of Community Health Sciences, General Practice Section and School of Mathematics; Maxwell Institute for Mathematical Sciences, and Psychological Medicine Research, University of Edinburgh; Expert Centre Chronic Fatigue, Radboud University, Nijmegen, Netherlands; Psychological Medicine Research, School of Molecular and Clinical Medicine, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK. [E-mail: chris.burton@ed.ac.uk]




Post a Comment

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


Article Comments Post a Comment

English please
Posted by: jacampbell
Jun 10, 2009
I dont have the complexity of mind to understand this. :-)
Reply Reply
 
Optimized Curcumin Longvida with Omega-3

Featured Products

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
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils

Natural Remedies

Coenzyme Q10 - The Energy Maker Coenzyme Q10 - The Energy Maker
Help for Soreness and Swelling: What Do Silkworms Have to Do With It? Help for Soreness and Swelling: What Do Silkworms Have to Do With It?
Three-Step Strategy to Reverse Mitochondrial Aging Three-Step Strategy to Reverse Mitochondrial Aging
Herbal Rescue for High Blood Sugar Herbal Rescue for High Blood Sugar
Vital Molecule Increases Cellular Energy and Improves Cognitive Function Vital Molecule Increases Cellular Energy and Improves Cognitive Function

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