Document Detail

Role of knee ligaments in proprioception and regulation of muscle stiffness.
MedLine Citation:
PMID:  20870507     Owner:  NLM     Status:  In-Data-Review    
Physiologic evidence for the sensory role of the knee joint ligaments are reviewed. The cruciate and collateral ligaments accomodate morphologically different sensory nerve endings with different capabilities of providing the central nervous system (CNS) with information not only about noxious and chemical stimuli but also about mechanical events, e.g., movement- and position-related stretches of the ligaments. Available data show that low-threshold joint/ligament receptor (i.e., mechanoreceptor) afferents evoke only weak and rare effects in skeletomotor neurons (α-motoneurons), whereas they frequently and powerfully influence fusimotor neurons (γ-motoneurons). The effects on the γ-muscle-spindle system in the muscles around the knee are so potent that even stretches of the cruciate ligaments at relatively moderate loads (not noxious) may induce major changes in responses of the muscle spindle afferents. As the activity in the primary muscle spindle afferents modifies stiffness in the muscles, the cruciate ligament receptors may, through the γ-muscle-spindle system, participate in regulation and preparatory adjustment of the stiffness of the muscles around the knee joint and thereby of knee joint stiffness. Thus, the sensory system of the cruciate ligaments is able to contribute significantly to the functional stability of the knee joint. The possible role of (ligamentous) joint receptors in genesis and spread of muscular tension in occupational muscle pain and in chronic musculoskeletal pain syndromes is also discussed.
H Johansson
Related Documents :
10492027 - The effects of functional knee bracing on muscle function and performance.
19092687 - Torque interaction among adjacent joints due to the action of biarticular muscles.
8001477 - Influence of hip and knee joint angles on excitation of knee extensor muscles.
19964087 - Muscle activation patterns during force generation of the index finger.
8614577 - Differential diagnosis and pitfalls in electrodiagnostic studies and special tests for ...
23473407 - Biomechanical evaluation of destabilization following minimally invasive decompression ...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology     Volume:  1     ISSN:  1050-6411     ISO Abbreviation:  J Electromyogr Kinesiol     Publication Date:  1991 Sep 
Date Detail:
Created Date:  2010-09-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9109125     Medline TA:  J Electromyogr Kinesiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  158-79     Citation Subset:  -    
Copyright Information:
Copyright © 1991. Published by Elsevier Ltd.
Department of Physiology, University of Umeå, Umeå, Sweden.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Neuroreceptors in the tissues of the knee joint.
Next Document:  Joint position sense in the normal and pathologic knee joint.