| Changes in skeletal muscle architecture following a cycloergometer test to exhaustion in athletes. | |
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MedLine Citation:
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PMID: 17905658 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We determined whether a short-term exhaustive dynamic exercise (cycling) for about 18min induces changes in the intramuscular architecture of the quadriceps in trained athletes. Thirty-five male athletes (age 28.8+/-9.8 years; height: 175.4.+/-5.5cm; weight: 74+/-11.5kg; average years spent training: 11.1+/-8.4 years; mean weekly duration of training: 10.4+/-3.20h) underwent an incremental cycloergometer test to exhaustion. Muscle thickness of the right quadriceps femoris (rectus femoris + vastus intermedius), and the angle of pennation of the right vastus lateralis on the quadriceps tendon were determined by high-resolution real time ultrasonography. Quadriceps thickness increased from 32.1+/-3.3mm at rest to 34.9+/-3.0mm after the test (p=0.001). The pennation angles were significantly greater after exercise (12.8+/-2.1 degrees at rest; 14.4+/-2.5 degrees after the test (p=0.001)). There are marked changes in intramuscular architecture of the quadriceps following a bout of cycloergometer exercise to exhaustion, with significant increase of quadriceps thickness and pennation angle. Ultrasonography allows to evaluate the changes of muscle architecture following exercise. |
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Authors:
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Paola Brancaccio; Francesco Mario Limongelli; Antonio D'Aponte; Marco Narici; Nicola Maffulli |
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Publication Detail:
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Type: Journal Article Date: 2007-10-01 |
Journal Detail:
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Title: Journal of science and medicine in sport / Sports Medicine Australia Volume: 11 ISSN: 1440-2440 ISO Abbreviation: J Sci Med Sport Publication Date: 2008 Nov |
Date Detail:
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Created Date: 2008-10-28 Completed Date: 2009-02-17 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9812598 Medline TA: J Sci Med Sport Country: Australia |
Other Details:
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Languages: eng Pagination: 538-41 Citation Subset: IM |
Affiliation:
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Seconda Università di Napoli, Servizio di Medicina dello Sport, Napoli, Italy. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Bicycling / physiology* Ergometry / instrumentation Humans Male Physical Exertion / physiology* Quadriceps Muscle / metabolism*, physiology, ultrasonography Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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