Document Detail


An electromyography analysis of 3 muscles surrounding the shoulder joint during the performance of a chest press exercise at several angles.
MedLine Citation:
PMID:  20512064     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study compared the activation of the clavicular head and the sternocostal head of the pectoralis major and the anterior deltoid when performing the bench press at several different angles. Fifteen healthy male subjects participated in this study. Subjects performed the chest press exercise at 0 (flat bench), 28, 44, and 56 degrees above horizontal using 70% of their respective 1 repetition maximum for each angle. Electromyographic activity was recorded during each repetition. Activation of the clavicular head of the pectoralis major was significantly greater at 44 degrees compared to 0 degrees (p = 0.010), at 56 degrees compared to 0 degrees (p = 0.013), and at 44 degrees compared to 28 degrees (p = 0.003). Activation of the sternocostal head of the pectoralis major was significantly greater at 0 degrees compared to 28 degrees (p = 0.013), at 0 degrees compared to 44 degrees (p = 0.018), at 0 degrees compared to 56 degrees (p = 0.001), at 28 degrees compared to 56 degrees (p = 0.003), and at 44 degrees compared to 56 degrees (p = 0.001). Activation of the anterior deltoid was significantly greater at 28 degrees compared to 0 degrees (p = 0.002), at 44 degrees compared to 0 degrees (p = 0.012), and at 56 degrees compared to 0 degrees (p = 0.014). To optimize recruiting the involved musculature, it would seem that performing both the flat and incline chest press exercises is necessary.
Authors:
Arthur A Trebs; Jason P Brandenburg; William A Pitney
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  24     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-05     Completed Date:  2010-10-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1925-30     Citation Subset:  IM    
Affiliation:
Department of Kinesiology and Physical Education, Northern Illinois University, DeKalb, Illinois, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Athletic Performance / physiology*
Clavicle / physiology*
Electromyography
Exercise / physiology*
Humans
Male
Pectoralis Muscles / physiology*
Resistance Training
Shoulder Joint / physiology*
Weight Lifting / physiology*
Young Adult

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


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