Document Detail

Neuromuscular dynamic restraint in women with anterior cruciate ligament injuries.
MedLine Citation:
PMID:  15292807     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to identify neuromuscular characteristics related to dynamic restraint in the knee. Observing compensatory changes to these characteristics in women with anterior cruciate ligament injuries provides important information for understanding functional knee stability, injury prevention, and performance. Twelve female subjects with anterior cruciate ligament injuries and 17 female control subjects participated in this study to assess electromyographic activity during landing from a hop and knee perturbation; hamstring muscle stiffness and flexibility; and isokinetic strength. Females with anterior cruciate ligament deficiencies had significantly increased preparatory muscle activity in the lateral hamstring before landing, but no differences in reactive muscle activity during landing or reflex latency after joint perturbation. Females with anterior cruciate ligament deficiencies had significantly less hamstring muscle stiffness and flexibility, but also had greater peak torque and torque development for knee flexion. Lower Lysholm scores were observed in females with anterior cruciate ligament deficiencies but no difference was found in functional performance of the single leg hop test. These neuromuscular characteristics provide a foundation for future research investigating injury prevention and rehabilitation techniques that maximize dynamic restraint through stiffness regulation and the timing of specific muscle activation strategies.
Charles Buz Swanik; Scott M Lephart; Kathleen A Swanik; David A Stone; Freddie H Fu
Related Documents :
22831157 - Is tissue cross-talk important in cancer cachexia?
3467577 - Critical periods in the prenatal morphogenesis of the human lateral pterygoid muscle, t...
8467337 - Mechanical power and muscle action during forward and backward running.
9110057 - Aberrant popliteus muscle: anatomy and clinical consideration.
10613667 - Matrix gla protein synthesis and gamma-carboxylation in the aortic vessel wall and prol...
18985787 - Three-dimensional conductive constructs for nerve regeneration.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  -     ISSN:  0009-921X     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-04     Completed Date:  2004-09-16     Revised Date:  2005-03-03    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  189-99     Citation Subset:  AIM; IM    
Department of Kinesiology, Temple University, 127 Pearson Hall, Philadelphia, PA 19122, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Anterior Cruciate Ligament / injuries*,  physiopathology*
Case-Control Studies
Knee Joint / physiopathology*
Muscle, Skeletal / physiology*
Range of Motion, Articular
Regression Analysis

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

Previous Document:  Use of the Cusum technique for evaluation of a CT-based navigation system for total knee replacement...
Next Document:  Reoperations after 3200 revision TKAs: rates, etiology, and lessons learned.