Left Ventricular Dimensions and Diastolic Function Are Different in Throwers, Endurance Athletes, and Sprinters From the World Masters Athletics Championships.

Autor:	Hoffmann F; German Aerospace Center (DLR), Institute of Aerospace Medicine, Cologne, Germany.; Department of Cardiology, University Hospital, Cologne, Germany., Moestl S; German Aerospace Center (DLR), Institute of Aerospace Medicine, Cologne, Germany., Wooten SV; Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, United States., Stray-Gundersen S; Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, United States., Tomczak CR; College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada., Tank J; German Aerospace Center (DLR), Institute of Aerospace Medicine, Cologne, Germany., Tanaka H; Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, United States., Rittweger J; German Aerospace Center (DLR), Institute of Aerospace Medicine, Cologne, Germany.; Department of Pediatrics and Adolescent Medicine, University Hospital, Cologne, Germany., Chilibeck PD; College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada.
Jazyk:	angličtina
Zdroj:	Frontiers in physiology [Front Physiol] 2021 Mar 15; Vol. 12, pp. 643764. Date of Electronic Publication: 2021 Mar 15 (Print Publication: 2021).
DOI:	10.3389/fphys.2021.643764
Abstrakt:	There is controversy whether a lifetime of heavy resistance training, providing pressure-overload, is harmful for left ventricular function. We compared left ventricular dimensions and function in elite Masters athletes involved in throwing events (requiring strength; n = 21, seven females, 60 ± 14 years) to those involved in endurance events ( n = 65, 25 females, 59 ± 10 years) and sprinting ( n = 68, 21 females, 57 ± 13 years) at the 2018 World Masters Athletic Championships. Left ventricular dimensions and function were assessed with B-mode ultrasound and Doppler. The ratio of left ventricular early diastolic peak filling velocity to peak velocity during atrial contraction (E/A) across the mitral valve and the ratio of E to velocity of the E-wave (E') across the lateral and septal mitral annulus (E/E') were used as indexes of left ventricular diastolic function. Intra-ventricular septal wall thickness was greater in throwers compared to sprinters (11.9 ± 2.2 vs. 10.3 ± 2.3 mm; p = 0.01). Left ventricular end diastolic diameter/body surface area was higher in endurance athletes and sprinters vs. throwers (25.2 ± 3.0, 24.3 ± 3.1, and 22.0 ± 3.1 mm/m 2 , respectively, p < 0.01). The E/A was higher in endurance athletes and sprinters vs. throwers (1.35 ± 0.40, 1.37 ± 0.43, and 1.05 ± 0.41, respectively; p < 0.01). The E/E' was lower in endurance athletes and sprinters vs. throwers (6.9 ± 1.8, 6.6 ± 1.9, and 8.1 ± 1.9, respectively, p < 0.05). Compared to age-matched historical controls ( n > 1,000; E/A = 1.06; E/E' = 7.5), left ventricular diastolic function was not different in throwers, but superior in endurance athletes and sprinters ( p < 0.01). Masters throwers have altered left ventricular dimensions and function vs. other athletes, but a lifetime of heavy resistance training does not appear to alter left ventricular function compared to age-matched controls. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2021 Hoffmann, Moestl, Wooten, Stray-Gundersen, Tomczak, Tank, Tanaka, Rittweger and Chilibeck.)
Databáze:	MEDLINE
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