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

Can Autoimmune Conditions be Reversed? Researchers Make a Surprising Discovery

Scientifically-designed fasting diet lowers risks for major diseases

How One Tiny Molecule Turned into One Huge Health Breakthrough

Acupuncture boosts effectiveness of standard medical care for chronic pain, depression

Research on Astaxanthin Demonstrates Significant Whole Body Benefits

Humans have three times more brown body fat

Nutrients Boost Stem Cell Function

B12 Proven Essential for Every Cell

Soy isoflavones may benefit breast cancer patients

Dietary prebiotics improve sleep, buffer impacts of stress, says study

 
Print Page
Email Article

Effects of experimental muscle pain on muscle activity & co-ordination during static & dynamic motor function

  [ 40 votes ]   [ Discuss This Article ]
By Graven-Nielsen T, Svensson P, Arendt-Nielsen L • www.ProHealth.com • April 5, 1997


The relation between muscle pain, muscle activity, and muscle
co-ordination is still controversial. The present human study
investigates the influence of experimental muscle pain on
resting, static, and dynamic muscle activity. In the resting
and static experiments, the electromyography (EMG) activity
and the contraction force of m. tibialis anterior were
assessed before and after injection of 0.5 ml hypertonic
saline (5%) into the same muscle. In the dynamic experiment,
injections of 0.5 ml hypertonic saline (5%) were performed
into either m. tibialis anterior (TA) or m. gastrocnemius (GA)
and the muscle activity and co-ordination were investigated
during gait on a treadmill by EMG recordings from m. TA and
m. GA.

At rest no evidence of EMG hyperactivity was found
during muscle pain. The maximal voluntary contraction (MVC)
during muscle pain was significantly lower than the control
condition (P < 0.05). During a static contraction at 80% of
the pre-pain MVC muscle pain caused a significant reduction
in endurance time (P < 0.043). During dynamic contractions,
muscle pain resulted in a significant decrease of the EMG
activity in the muscle, agonistic to the painful muscle (P <
0.05), and a significant increase of the EMG activity of the
muscle, antagonistic to the painful muscle (P < 0.05).

Muscle pain seems to cause a general protection of painful muscles
during both static and dynamic contractions. The increased
EMG activity of the muscle antagonistic to the painful muscle
is probably a functional adaptation of muscle co-ordination
in order to limit movements. Modulation of muscle activity by
muscle pain could be controlled via inhibition of muscles
agonistic to the movement and/or excitation of muscles
antagonistic to the movement.

The present results are in accordance with the pain-adaptation model
(Lund, J.P., Stohler, C.S. and Widmer, C.G. In: H. Vaeroy and H.
Merskey (Eds.), Progress in Fibromyalgia and Myofascial Pain.
Elsevier, Amsterdam, 1993, pp. 311-327.) which predicts
increased activity of antagonistic muscle and decreased
activity of agonistic muscle during experimental and clinical
muscle pain.




Post a Comment

Featured Products From the ProHealth Store
Energy NADH™ 12.5mg Optimized Curcumin Longvida® FibroSleep™

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


 
NAD+ Ignite with Niagen

Featured Products

Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health

Natural Remedies

Can Glycine + Amino Acids Be the Secret to Deep, Rejuvenating Sleep? Can Glycine + Amino Acids Be the Secret to Deep, Rejuvenating Sleep?
SAD? Coping with Seasonal Affective Disorder SAD? Coping with Seasonal Affective Disorder
Health Benefits Are Brewing in Green Tea Health Benefits Are Brewing in Green Tea
The New Dual Activation Pain Relief Cream The New Dual Activation Pain Relief Cream
Relief for Dry, Itchy Skin Caused by Fibromyalgia Relief for Dry, Itchy Skin Caused by Fibromyalgia

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