| Optimal stiffness of series elastic component in a stretch-shorten cycle activity. | |
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MedLine Citation:
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PMID: 2022574 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Twelve experienced male weight lifters performed a rebound bench press and a purely concentric bench press lift. Data were obtained pertaining to 1) the benefits to concentric motion derived from a prior stretch and 2) the movement frequency adopted during performance of the stretch-shorten cycle (SSC) portion of the rebound bench press lift. The subjects also performed a series of quasi-static muscular actions in a position specific to the bench press movement. A brief perturbation was applied to the bar while these isometric efforts were maintained, and the resulting damped oscillations provided data pertaining to each subject's series elastic component (SEC) stiffness and natural frequency of oscillation. A significant correlation (r = -0.718, P less than 0.01) between maximal SEC stiffness and augmentation to concentric motion derived from prior stretch was observed. Subjects were also observed to perform the SSC portion of the rebound bench press movement to coincide with the natural frequency of oscillation of their SEC. These results are interpreted as demonstrating that the optimal stiffness in a rebound bench press lift was a resonant-compliant SEC. |
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Authors:
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G J Wilson; G A Wood; B C Elliott |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: 70 ISSN: 8750-7587 ISO Abbreviation: J. Appl. Physiol. Publication Date: 1991 Feb |
Date Detail:
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Created Date: 1991-06-04 Completed Date: 1991-06-04 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 825-33 Citation Subset: IM |
Affiliation:
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Department of Human Movement and Recreation Studies, University of Western Australia, Nedlands. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Biomechanics Elasticity Humans Male Muscle Contraction / physiology* Viscosity Weight Lifting |
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