| Effects of endurance and strength-directed electrical stimulation training on the performance and histological properties of paralyzed human muscle: a pilot study. | |
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MedLine Citation:
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PMID: 20976779 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Electrical stimulation (ES) improves muscle properties after spinal cord injury (SCI), but cycling power output (PO) remains low. We investigated the effect of endurance and strength ES training on these parameters. Assessments of quadriceps strength and fatigue resistance, cycling PO, and muscle biopsies were made in four well-trained SCI subjects (three cyclists and one rower) before and after additional weight training in the cyclists and once in the rower. Weight training improved muscle strength, but cycling PO was low in all subjects. There was no effect of training type on biopsy data. Biopsies showed non-specific signs of pathology, predominance of type IIa fibers, and uniform metabolic activity. Oxidative activity was low, as were capillary:fiber ratios in the cyclists. Cycling PO is limited by factors other than muscle strength. Future ES training studies should attempt to improve muscle oxidative capacity to optimize the potential benefits of ES exercise. |
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Authors:
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Lynsey D Duffell; Anthea M Rowlerson; Nick De N Donaldson; Stephen D R Harridge; Di J Newham |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Muscle & nerve Volume: 42 ISSN: 1097-4598 ISO Abbreviation: Muscle Nerve Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-10-26 Completed Date: 2010-11-22 Revised Date: 2011-01-04 |
Medline Journal Info:
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Nlm Unique ID: 7803146 Medline TA: Muscle Nerve Country: United States |
Other Details:
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Languages: eng Pagination: 756-63 Citation Subset: IM |
Affiliation:
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Division of Applied Biomedical Research, King's College London, London, UK. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Bicycling
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physiology Biopsy Cell Count Electric Stimulation Ergometry Female Humans Isometric Contraction / physiology Leg / physiology Male Middle Aged Muscle Fatigue / physiology Muscle Fibers, Fast-Twitch / pathology, physiology Muscle Strength / physiology* Muscle, Skeletal / pathology*, physiopathology* Oxidation-Reduction Paralysis / pathology*, physiopathology* Physical Endurance / physiology* Physical Fitness / physiology* Pilot Projects Spinal Cord Injuries / pathology, physiopathology Weight Lifting / physiology |
| Comments/Corrections | |
Erratum In:
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Muscle Nerve. 2011 Jan;43(1):154 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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