Document Detail

Paraspinal muscle activity during symmetrical and asymmetrical weight training in idiopathic scoliosis.
MedLine Citation:
PMID:  20811080     Owner:  NLM     Status:  MEDLINE    
CONTEXT: Various studies report decreased muscle activation in the concavity of the curve in patients with scoliosis. Such decreased muscle-performance capacity could lead to sustained postural deficits. OBJECTIVE: To investigate whether specific asymmetrical sports therapy exercises rather than symmetrical back strengthening can increase EMG amplitudes of paraspinal muscles in the concavity of the curve. DESIGN: Cross-sectional. SETTING: Laboratory. PARTICIPANTS: 16 patients with idiopathic scoliosis. INTERVENTIONS: Patients performed 4 back-strengthening exercises (front press, lat pull-down, roman chair, bent-over barbell row) during 1 test session. Each exercise was performed in a symmetrical and asymmetrical variant and repeated 3 times. MAIN OUTCOME MEASURE: EMG amplitudes of the paraspinal muscles were recorded in the thoracic and lumbar apexes of the scoliotic curve during each exercise. Ratios of convex- to concave-side EMG activity were calculated. RESULTS: Statistical analysis revealed that the asymmetrical variants of front press at the lumbar level (P=.002) and roman chair and bent-over barbell row at the thoracic level (P<.0001, .001 respectively) were superior in increasing EMG amplitudes in the concavity of the scoliotic curve. CONCLUSIONS: Specific asymmetrical exercises increase EMG amplitudes of paraspinal muscles in the concavity. If confirmed in longitudinal studies measuring improvements of postural deficits, these exercises may advance care of patients with scoliosis.
Annina B Schmid; Linda Dyer; Thomas Böni; Ulrike Held; Florian Brunner
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of sport rehabilitation     Volume:  19     ISSN:  1056-6716     ISO Abbreviation:  J Sport Rehabil     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-09-02     Completed Date:  2010-09-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206500     Medline TA:  J Sport Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  315-27     Citation Subset:  IM    
Department of Physiotherapy, Balgrist University Hospital, Horton Center for Patient-Oriented Research, University of Zurich, Zurich, Switzerland.
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MeSH Terms
Cross-Sectional Studies
Exercise Therapy / methods*
Lumbar Vertebrae
Muscle, Skeletal / physiology*
Scoliosis / physiopathology,  rehabilitation*
Thoracic Vertebrae
Weight Lifting / physiology*

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