Document Detail


The relationship of transversus abdominis and lumbar multifidus activation and prognostic factors for clinical success with a stabilization exercise program: a cross-sectional study.
MedLine Citation:
PMID:  20103400     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Hebert JJ, Koppenhaver SL, Magel JS, Fritz JM. The relationship of transversus abdominis and lumbar multifidus activation and prognostic factors for clinical success with a stabilization exercise program: a cross-sectional study. OBJECTIVE: To examine the relationship between prognostic factors for clinical success with a stabilization exercise program and lumbar multifidus (LM) and transversus abdominis (TrA) muscle activation assessed using rehabilitative ultrasound imaging (RUSI). DESIGN: Cross-sectional study. SETTING: Outpatient physical therapy clinic. PARTICIPANTS: Volunteers with current low back pain (N=40). INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: We examined the relationship between prognostic factors associated with clinical success with a stabilization exercise program (positive prone instability test, age <40y, aberrant movements, straight leg raise >91 degrees , presence of lumbar hypermobility) and degree of TrA and LM muscle activation assessed by RUSI. RESULTS: Significant univariate relationships were identified between LM muscle activation and the number of prognostic factors present (Pearson correlation coefficient [r] =-.558, P=.001), as well as the individual factors of a positive prone instability test (point biserial correlation coefficient [r(pbis)]=.376, P=.018) and segmental hypermobility (r(pbis)=.358, P=.025). The multivariate analyses indicated that after controlling for other variables, the addition of the variable "number of prognostic factors present" resulted in a significant increase in R(2) (P=.006). No significant univariate or multivariate relationships were observed between the prognostic factors and TrA muscle activation. CONCLUSIONS: Decreased LM muscle activation, but not TrA muscle activation, is associated with the presence of factors predictive of clinical success with a stabilization exercise program. Our findings provide researchers and clinicians with evidence regarding the construct validity of the prognostic factors examined in this study, as well as the potential clinical importance of the LM muscle as a target for stabilization exercises.
Authors:
Jeffrey J Hebert; Shane L Koppenhaver; John S Magel; Julie M Fritz
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of physical medicine and rehabilitation     Volume:  91     ISSN:  1532-821X     ISO Abbreviation:  Arch Phys Med Rehabil     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-01-27     Completed Date:  2010-02-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985158R     Medline TA:  Arch Phys Med Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  78-85     Citation Subset:  AIM; IM    
Copyright Information:
Copyright (c) 2010 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.
Affiliation:
University of Utah, College of Health, Salt Lake City, UT, USA. jeff.hebert@utah.edu
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MeSH Terms
Descriptor/Qualifier:
Abdominal Muscles / physiopathology
Adult
Body Mass Index
Cross-Sectional Studies
Exercise Therapy / methods*
Female
Humans
Low Back Pain / diagnosis*,  physiopathology,  rehabilitation*
Lumbosacral Region
Male
Middle Aged
Muscle, Skeletal / physiopathology*
Prognosis
Sex Factors

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


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