Document Detail

Balance deficits in recreational athletes with chronic ankle instability.
MedLine Citation:
PMID:  18059992     Owner:  NLM     Status:  MEDLINE    
CONTEXT: Deficits in static and dynamic stability during single-leg stance have been noted in individuals with chronic ankle instability (CAI), but few investigators have tested subjects for subtle deficits in dynamic balance. Subtle deficits in dynamic balance during a double-leg stance may reveal changes in the sensorimotor system because of CAI.
OBJECTIVE: To use a standardized tibial nerve stimulation as a perturbation to test for dynamic balance deficits between a group of recreational athletes with CAI and a group of recreational athletes with stable ankles.
DESIGN: Case-control study.
SETTING: Laboratory.
PATIENTS OR OTHER PARTICIPANTS: Twenty recreational athletes with CAI and 20 recreational athletes with stable ankles.
INTERVENTION(S): Balance deficits were assessed for each subject during static and dynamic trials.
MAIN OUTCOME MEASURE(S): Time to stabilization and center-of-pressure excursion path length, velocity, and area from ground reaction forces during double-leg stance were collected through a forceplate. We used an accelerometer to measure tibial acceleration. Data were collected during static stance and during a bilateral perturbation using maximal motor neuron recruitment elicited by electric stimulation of the tibial nerve.
RESULTS: Only time to stabilization in the anterior-posterior direction was significantly different between groups ( P = .04), with the CAI group taking longer to return to a stable range of ground reaction forces. We found no other differences in stability measures between the groups.
CONCLUSIONS: Dynamic balance in double-leg stance as measured by time to stabilization appears to be affected in individuals with CAI. Deficits in the response to external perturbation may indicate subtle central sensorimotor changes.
Cathleen N Brown; Richard Mynark
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of athletic training     Volume:  42     ISSN:  1938-162X     ISO Abbreviation:  J Athl Train     Publication Date:    2007 Jul-Sep
Date Detail:
Created Date:  2007-12-06     Completed Date:  2008-02-05     Revised Date:  2013-05-23    
Medline Journal Info:
Nlm Unique ID:  9301647     Medline TA:  J Athl Train     Country:  United States    
Other Details:
Languages:  eng     Pagination:  367-73     Citation Subset:  IM    
Department of Kinesiology, University of Georgia, Ramsey Center, 300 River Road, Athens, GA 30602-6554, USA.
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MeSH Terms
Ankle Injuries / complications*,  physiopathology
Athletic Injuries / complications*,  physiopathology
Case-Control Studies
Chronic Disease
Electric Stimulation
Joint Instability / complications*,  physiopathology
Postural Balance*
Sensation Disorders / diagnosis,  etiology*,  physiopathology
Tibial Nerve

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

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