| Mitral annular excursion during exercise in endurance athletes. | |
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MedLine Citation:
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PMID: 18171401 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of the present study was to quantify the left ventricular (LV) longitudinal motion during exercise at rest and during upright exercise in 24 healthy male endurance athletes. By using M-mode and two-dimensional echocardiography, the relative mitral annular motion and the absolute LV longitudinal axis was measured at end-diastole and end-systole at rest and during exercise. From rest to peak exercise at a heart rate of 160 beats per minute (bpm) the mitral annular motion increased in the septal and lateral annular borders by 68% and 49% respectively. At rest, mitral annular excursion was significantly (13%) higher in the lateral than in the septal wall but at peak exercise at a heart rate of 160 bpm there was no difference between the septal and lateral annular motion. The total end-diastolic LV axial length did not increase from rest to peak exercise. In conclusion, during upright exercise, mitral annular motion increased significantly with no difference between the septal and lateral annular excursion at peak exercise. The absolute increase in mitral annular motion during exercise was explained by a decrease in axial end-systolic length. |
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Authors:
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Milena Sundstedt; Pär Hedberg; Egil Henriksen |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical physiology and functional imaging Volume: 28 ISSN: 1475-0961 ISO Abbreviation: Clin Physiol Funct Imaging Publication Date: 2008 Jan |
Date Detail:
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Created Date: 2008-01-03 Completed Date: 2008-03-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137604 Medline TA: Clin Physiol Funct Imaging Country: England |
Other Details:
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Languages: eng Pagination: 27-31 Citation Subset: IM |
Affiliation:
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Department of Clinical Physiology and Centre of Clinical Research, Uppsala University, Central Hospital, Västerås, Sweden. milena.sundstedt@ltv.se |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Diastole Exercise / physiology* Heart Rate Humans Male Mitral Valve / physiology*, ultrasonography Observer Variation Physical Endurance / physiology* Reproducibility of Results Research Design Systole Ventricular Function, Left / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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