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Exercise-induced cardiac remodeling in athletes and in special forces soldiers
Ctr Hosp and Univ Coimbra, Portugal; Ctr Saude Mil Coimbra, Portugal.
Ctr Hosp and Univ Coimbra, Portugal; Univ Coimbra, Portugal.
Hosp Forcas Armadas, Portugal.
Ctr Hosp and Univ Coimbra, Portugal; Ctr Saude Mil Coimbra, Portugal.
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2018 (English)In: REVISTA PORTUGUESA DE CARDIOLOGIA, ISSN 0870-2551, Vol. 37, no 3, p. 249-256Article in journal (Refereed) Published
Abstract [en]

Introduction: Exercise-induced cardiac remodeling is frequent in athletes. This adaptation is structurally manifested by an increase in cardiac dimensions and mass. Soldiers are also subject to intense physical exercise, although with different characteristics. Objective: To compare exercise-induced cardiac remodeling in competitive athletes and in soldiers on a special forces training course. Methods: We studied 17 soldiers (all male and Caucasian, mean age 21 3 years) who completed a special forces course and 17 basketball players (47.3% male, 64.7% Caucasian, mean age 21 +/- 3 years). Assessment included a transthoracic echocardiogram and analysis of myocardial mechanics. This assessment was performed at the beginning and end of the military course and the sports season, respectively. Results: Cardiac remodeling was observed in both groups. The soldiers presented a predominantly eccentric pattern, with increased left ventricular (LV) size (49.7 +/- 3.2 vs. 52.8 +/- 3.4 mm; p amp;lt; 0.01), increased LV mass (93.1 +/- 7.7 vs. 100.2 +/- 11.4 g/m2; p amp;lt; 0.01) and decreased relative wall thickness (0.40 +/- 0.1 vs. 0.36 +/- 0.1; p = 0.05). The basketball players showed a concentric pattern, with decreased LV size (52.0 +/- 4.7 vs. 50.4 +/- 4.7 mm; p = 0.05), and increased relative wall thickness (0.33 +/- 0.1 vs. 0.36 +/- 0.1; p = 0.05). Although there was no significant difference in LV myocardial strain in the groups separately, when compared there was a significant decrease (-20.2 +/- 1.6% vs. -19.4 +/- 2.1%; p = 0.03). Conclusion: Cardiac remodeling was frequent, with an eccentric pattern in soldiers and a concentric pattern in basketball players. Myocardial deformation may represent a physiological adaptation to physical exercise. (C) 2017 Sociedade Portuguesa de Cardiologia. Published by Elsevier Espana, S.L.U. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER DOYMA SL , 2018. Vol. 37, no 3, p. 249-256
Keywords [en]
Physical exercise; Cardiac remodeling; Myocardial mechanics
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:liu:diva-148264DOI: 10.1016/j.repc.2017.06.010ISI: 000432450400008PubMedID: 29609946OAI: oai:DiVA.org:liu-148264DiVA, id: diva2:1213348
Available from: 2018-06-04 Created: 2018-06-04 Last updated: 2019-04-09

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CiteExportLink to record
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Citation style
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