| Sport category is an important determinant of cardiac adaptation: an MRI study. | |
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MedLine Citation:
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PMID: 22219218 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BackgroundPhysiological cardiac adaptation in athletes is influenced by body surface area, gender, age, training intensity and sport type. This study assesses the influence of sport category and provides a physiological reference for sport category and gender.MethodsThree hundred and eighty-one subjects (mean age 25±5 years, range 18 to 39 years; 61% men) underwent cardiac MRI and ECG: 114 healthy non-athletes (≤3 training h/week) and 267 healthy elite athletes (mean 17±6.6 training h/week). Athletes performed low-dynamic high-static (LD-HS, n=42), high-dynamic low-static (HD-LS, n=144) or high-dynamic high-static sports (HD-HS, n=81).ResultsLeft ventricular (LV) end-diastolic volume (EDV) index (ml/m(2)) for non-athletes/LD-HS/HD-LS/HD-HS, respectively, was 101/107/122/129 in men and 90/103/106/111 in women. LV end-diastolic mass (EDM) index (g/m(2)) for non-athletes/LD-HS/HD-LS/HD-HS was, respectively, 47/49/57/69 for men and 34/38/42/51 for women. Left or right ventricular EDV ratios were alike in all groups. LV EDV/EDM ratios were similar in non-athletes/LD-HS/HD-LS athletes, and only lower in HD-HS athletes, disproving selective ventricular wall thickening in LD-HS athletes. Multivariate linear regression demonstrated HD-LS and HD-HS sport category coefficients (p<0.01) larger than those of training hours, gender and age (LV EDV/EDM coefficients for sport category LD-HS 6/0.75, HD-LS 16/7, HD-HS 21/17). ECG abnormalities were most frequent in HD-HS athletes and in male subjects.ConclusionsThis study demonstrates a balanced cardiac adaptation with preserved ratios of LV/right ventricular volume (in all sport categories) and LV volume/wall mass (in LD-HS and HD-LS sports). Sport category has a strong impact on cardiac adaptation. HD-HS sports show the largest changes, whereas LD-HS sports show dimensions similar to non-athletes. |
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Authors:
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Tim Luijkx; Maarten J Cramer; Niek H J Prakken; Constantinus F Buckens; Arend Mosterd; Rienk Rienks; Frank J G Backx; Willem P Th M Mali; Birgitta K Velthuis |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-4 |
Journal Detail:
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Title: British journal of sports medicine Volume: - ISSN: 1473-0480 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-5 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0432520 Medline TA: Br J Sports Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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