| Evaluation of exercise-induced muscle damage by surface electromyography. | |
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MedLine Citation:
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PMID: 21075645 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: To investigate the feasibility of a non-invasive and instant method to evaluate the degree of exercise-induced muscle damage. METHODS: Thirteen male college athletes (23.4±1.0year, 180.03±3.51cm, 75.93±6.70kg) took part in the trial. Measures included serum creatine kinase (CK) after eccentric and endurance exercise, and surface electromyography (sEMG) during knee extension and flexion on a Biodex unit. Relation analysis was employed between sEMG and serum CK after the eccentric and endurance exercise. RESULTS: There were positive correlations between serum CK at 24 and 48h after eccentric exercise and the AREA of sEMG for the slow isokinetic contraction before eccentric exercise (r=0.69, P<0.01 and 0.64, P<0.05, respectively). The zero crossing rate (ZCR) immediately after exercise was negatively correlated with serum CK at 48h after exercise for the slow and fast tests (r=-0.63 and -0.59, P<0.05, respectively). Mean power frequency (MPF) and ZCR of sEMG at 6h post endurance exercise were positively correlated with serum CK at 24h (r=0.73 and 0.69, P<0.05, respectively) for the fast isokinetic test. CONCLUSIONS: Exercise-induced muscle damage as evaluated by serum CK was associated with the AREA of sEMG after eccentric exercise. The ZCR of sEMG was a good predictor of muscle damage after endurance exercise. |
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Authors:
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Yue Zhou; Yang Li; Ruiyuan Wang |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-11-12 |
Journal Detail:
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Title: Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology Volume: - ISSN: 1873-5711 ISO Abbreviation: J Electromyogr Kinesiol Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-11-15 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9109125 Medline TA: J Electromyogr Kinesiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Beijing Sport University, Graduate School, Beijing 100084, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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