Document Detail

Relationship between quadriceps femoris muscle volume and muscle torque after anterior cruciate ligament repair.
MedLine Citation:
PMID:  17331086     Owner:  NLM     Status:  MEDLINE    
This study was performed to obtain evidence regarding bilateral hindrance of motor unit (MU) recruitment in the quadriceps femoris (QF) of patients with anterior cruciate ligament (ACL) reconstruction. The subjects included 70 patients who underwent ACL reconstruction and 35 healthy subjects. To identify the muscle torque per unit volume (MTPUV), the peak torque of each velocity of isokinetic performance was divided by muscle volume of the QF measured by a series of cross-sectional images obtained by magnetic resonance imaging scans. Tests revealed that the mean MTPUV of the uninjured (0.113+/-0.03 N m/cm3 at 60 degrees /s, 0.081+/-0.02 N m/cm3 at 180 degrees /s) and injured sides (0.109+/-0.03 N m/cm3 at 60 degrees /s, 0.079+/-0.023 N m/cm3 at 180 degrees /s) were significantly lower than those of the control group (0.144+/-0.05 N m/cm3 at 60 degrees /s, 0.096+/-0.04 N m/cm3 at 180 degrees /s). Previous studies suggested that MU recruitment in the QF of patients with ACL injury was hindered bilaterally. However, the design of their studies could not provide evidence of bilateral hindrance of MU recruitment in the QF. The results of the present study demonstrated that the MTPUV of both injured and uninjured sides of patients were significantly lower than those of the control group.
Y Konishi; K Ikeda; A Nishino; M Sunaga; Y Aihara; T Fukubayashi
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2007-03-01
Journal Detail:
Title:  Scandinavian journal of medicine & science in sports     Volume:  17     ISSN:  0905-7188     ISO Abbreviation:  Scand J Med Sci Sports     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-12-20     Completed Date:  2008-03-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111504     Medline TA:  Scand J Med Sci Sports     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  656-61     Citation Subset:  IM    
Department of Sports Sciences, Kyushu Kyoritsu University, Fukuoka, Japan.
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MeSH Terms
Anterior Cruciate Ligament / injuries,  surgery*
Cross-Sectional Studies
Muscle, Skeletal / physiology
Outcome Assessment (Health Care)
Quadriceps Muscle / physiology*
Reconstructive Surgical Procedures

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