Decoupling of laxity and cortical activation in functionally unstable ankles during joint loading

Purpose Recent studies have highlighted central nervous system alterations following ligamentous injury that may contribute to joint instability. However, research has not observed cortical responses to joint loading or sensory changes in the context of joint laxity following injury. Methods Forty-t...

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Bibliographic Details
Published in:European journal of applied physiology 2014-10, Vol.114 (10), p.2129-2138
Main Authors: Needle, Alan R., Swanik, C. Buz, Schubert, Michael, Reinecke, Kirsten, Farquhar, William B., Higginson, Jill S., Kaminski, Thomas W., Baumeister, Jochen
Format: Article
Language:English
Subjects:
Adult
Ankle
Ankle Joint - innervation
Ankle Joint - physiopathology
Biomedical and Life Sciences
Biomedicine
Case-Control Studies
Electroencephalography
Exercise
Female
Human Physiology
Humans
Joint and ligament injuries
Joint Instability - physiopathology
Load
Magnetic resonance imaging
Male
Nervous system
Occupational Medicine/Industrial Medicine
Original Article
Somatosensory Cortex - physiology
Sports Medicine
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Summary:Purpose Recent studies have highlighted central nervous system alterations following ligamentous injury that may contribute to joint instability. However, research has not observed cortical responses to joint loading or sensory changes in the context of joint laxity following injury. Methods Forty-two subjects were stratified into healthy (CON), unstable (UNS), and coper (COP) groups using ankle injury and instability history. Event-related desynchronization (%) from electroencephalography quantified somatosensory cortex activity as the ankle was loaded using an arthrometer. Results Cortical activation increased as the ankle was loaded ( F  = 63.05, p  
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-014-2929-3