A Comparison of the Effects of Concentric Versus Eccentric Exercise on Muscle Activation Patterns.
The purpose of this investigation was to use a wavelet analysis and pattern classification methods to compare the muscle activation patterns generated before versus after concentric and eccentric exercise protocols. Thirteen men (mean ± SD age = 23.7 ± 2.2 years) performed maximal concentric isokine...
| Publicado en: | Clinical Kinesiology (Online Edition) Vol. 66; no. 3; pp. 66 - 74 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts randomized controlled trial Journal Article |
| Publicado: |
American Kinesiotherapy Association
Fall2012
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=88930446&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 88930446 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08969620 2QKM jtl: Clinical Kinesiology (Online Edition) issn: 08969620 maglogo: N pubinfo: dt: Fall2012 vid: 66 iid: 3 pid: 31106 pub: American Kinesiotherapy Association place: Hattiesburg, Mississippi artinfo: ui: 88930446 88930446 104192971 88930446 ppf: 66 ppct: 8 formats: fmt: @attributes: type: P tig: atl: A Comparison of the Effects of Concentric Versus Eccentric Exercise on Muscle Activation Patterns. aug: au: Beck, Travis W. Kasishke II, Paul R. Stock, Matt S. DeFreitas, Jason M. Ye, Xin affil: University of Oklahoma, Biophysics Laboratory, Department of Health and Exercise Science sug: subj: Muscle Strengthening Methods Muscle Contraction Eccentric Contraction Concentric Contraction Exercise Physiology Neuromuscular Control Physiology Human Oklahoma Randomized Controlled Trials Random Assignment Intervention Trials Pretest-Posttest Design Male Young Adult Isokinetic Exercises Isometric Exercises Forearm Physiology Flexion Electromyography Biceps Brachii Muscles Physiology Muscle Contraction Classification Dynamometry Exercise Test, Muscular Data Analysis, Statistical Descriptive Statistics Male ab: The purpose of this investigation was to use a wavelet analysis and pattern classification methods to compare the muscle activation patterns generated before versus after concentric and eccentric exercise protocols. Thirteen men (mean ± SD age = 23.7 ± 2.2 years) performed maximal concentric isokinetic, eccentric isokinetic, and isometric muscle actions of the dominant forearm flexors before (PRE) and immediately after (POST) exercise protocols that involved only concentric or eccentric muscle actions. Bipolar surface electromyographic (EMG) signals were detected from the biceps brachii during the PRE and POST muscle actions, processed with a wavelet analysis, and classified using paired pattern classification techniques. For the eccentric exercise protocol, the EMG intensity patterns could be classified into their respective PRE versus POST categories with accuracy rates of 92.3% , 53.8%, and 92.3% for the maximal concentric isokinetic, eccentric isokinetic, and isometric muscle actions, respectively. For the concentric exercise protocol, the accuracy rates for the classifications into the PRE versus POST conditions was 84.6% for the maximal concentric isokinetic, eccentric isokinetic, and isometric muscle actions. These findings demonstrated that both concentric and eccentric exercise affects the pattern used by the nervous system (i.e., the interaction between motor unit recruitment and firing rate) to activate skeletal muscle pubtype: Academic Journal doctype: research tables/charts randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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