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 Magnesium the Missing Link in Your Heart Healthy Routine?

A Little Zinc Goes a Long Way

More evidence for calorie restriction’s longevity effect

Supplementation with vitamin D associated with improved testosterone, erectile function among middle...

Vitamin D deficiency increases risk of chronic headache

VIDEO: The Best Brain Foods That Help Increase Your Memory!

Iron (And More) For Lasting, Natural Energy

Get the Most From Your Green Tea

Affordable Care Act made cancer screening more accessible for millions, study finds

Metabolic syndrome increases the need for vitamin E

 
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
Mitochondria Ignite™ with NT Factor® Energy NADH™ 12.5mg Ultra ATP+, Double Strength

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

FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils

Natural Remedies

How to Jump-start and Sustain Energy Production in CFS How to Jump-start and Sustain Energy Production in CFS
Anti-Inflammatory Properties of Tart Cherry Anti-Inflammatory Properties of Tart Cherry
Top 3 Nutrients to Detox the Liver and Soothe Digestion Top 3 Nutrients to Detox the Liver and Soothe Digestion
Red Yeast Rice - Natural Option for Supporting Healthy Cholesterol Red Yeast Rice - Natural Option for Supporting Healthy Cholesterol
Health Benefits Are Brewing in Green Tea Health Benefits Are Brewing in Green Tea

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