| Linearity and reliability of the mechanomyographic amplitude versus concentric dynamic constant external resistance relationships for the bench press exercise. | |
| | |
MedLine Citation:
|
PMID: 20093959 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The purpose of the present study was to examine the linearity and reliability of the mechanomyographic (MMG) amplitude versus concentric dynamic constant external resistance (DCER) relationships for the bench press exercise. Twenty-one resistance-trained men (mean +/- SD age = 23.5 +/- 2.7 yr; 1 repetition maximum [1RM] bench press = 125.4 +/- 18.4 kg) volunteered to perform submaximal bench press muscle actions as explosively as possible from 10% to 90% of the 1RM on 2 separate occasions. During each muscle action, surface MMG signals were detected from both the right and left pectoralis major and triceps brachii, and the concentric portion of the range of motion was selected for analysis. The coefficients of determination for the MMG amplitude versus concentric DCER relationships ranged from r2 = 0.010 to 0.980 for the right pectoralis major, r2 = 0.010 to 0.943 for the left pectoralis major, r2 = 0.010 to 0.920 for the right triceps brachii, and r2 = 0.020 to 0.915 for the left triceps brachii, thus indicating a wide range of linearity between subjects. The intraclass correlation coefficients (ICC) and corresponding standard error of measurements (SEM) for the linear slope coefficients for these relationships were 0.592 (39.3% of the mean value), 0.537 (41.9% of the mean value), 0.625 (42.0% of the mean value), and 0.460 (60.2% of the mean value) for the right pectoralis major, the left pectoralis major, the right triceps brachii, and the left triceps brachii, respectively. These data demonstrated that these relationships were neither linear nor reliable enough to be used for assessing issues such as the neural versus hypertrophic contributions to training-induced strength gains and the mechanisms underlying cross-education. |
| | |
Authors:
|
Matt S Stock; Travis W Beck; Jason M DeFreitas; Michael A Dillon |
Related Documents
:
|
15705039 - A comparison of 3 different rest intervals on the exercise volume completed during a wo... 12492249 - Aerobic and neuromuscular performance capacity of physically active females with early ... 19903319 - Strength training improves 5-min all-out performance following 185 min of cycling. 9617729 - The relationship between open and closed kinetic chain strength of the lower limb and j... 11445769 - Acute muscle damage as a stimulus for training-induced gains in strength. 17548549 - A randomized controlled trial of resistance exercise in individuals with als. 15710529 - Epidemiology of gastrointestinal nematodes in cattle on traditional, small-scale dairy ... 1548299 - Tissue pco2 in brain ischemia related to lactate content in normo- and hypercapnic rats. 17184309 - Heart disease prevention in women: promoting exercise. |
Publication Detail:
|
Type: Comparative Study; Journal Article |
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 Mar |
Date Detail:
|
Created Date: 2010-03-02 Completed Date: 2010-05-24 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9415084 Medline TA: J Strength Cond Res Country: United States |
Other Details:
|
Languages: eng Pagination: 785-95 Citation Subset: IM |
Affiliation:
|
Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma, USA. mattstock@ou.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Electromyography Exercise / physiology Humans Male Muscle Strength / physiology Muscle, Skeletal / physiology Reproducibility of Results Resistance Training / methods* Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Psychological Correlates of Performance in Female Athletes During a 12-Week Off-Season Strength and ...
Next Document: A comparison of muscle activation between a Smith machine and free weight bench press.