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The impact of chronic endurance and resistance training upon the right ventricular phenotype in male athletes

Utomi, V and Oxborough, D and Ashley, E and Lord, R and Fletcher, S and Stembridge, M and Shave, R and Hoffman, MD and Whyte, G and Somauroo, J and Sharma, S and George, KP (2015) The impact of chronic endurance and resistance training upon the right ventricular phenotype in male athletes. EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 115 (8). pp. 1673-1682. ISSN 1439-6319

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Does training type result in a dichotomous athletic heart phenotype in the right ventricle of male athletes.pdf - Accepted Version

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Abstract

Objectives
The traditional view of differential left ventricular adaptation to training type has been questioned. Right ventricular (RV) data in athletes are emerging but whether training type mediates this is not clear. The primary aim of this study was to evaluate the RV phenotype in endurance- vs. resistance-trained male athletes. Secondary aims included comparison of RV function in all groups using myocardial speckle tracking, and the impact of allometric scaling on RV data interpretation.

Methods
A prospective cross-sectional design assessed RV structure and function in 19 endurance-trained (ET), 21 resistance-trained (RT) and 21 sedentary control subjects (CT). Standard 2D tissue Doppler imaging and speckle tracking echocardiography assessed RV structure and function. Indexing of RV structural parameters to body surface area (BSA) was undertaken using allometric scaling.

Results
A higher absolute RV diastolic area was observed in ET (mean ± SD: 27 ± 4 cm2) compared to CT (22 ± 4 cm2; P < 0.05) that was maintained after scaling. Whilst absolute RV longitudinal dimension was greater in ET (88 ± 9 mm) than CT (81 ± 10 mm; P < 0.05), this difference was removed after scaling. Wall thickness was not different between ET and RT and there were no between group differences in global or regional RV function.

Conclusion
We present some evidence of RV adaptation to chronic ET in male athletes but limited structural characteristics of an athletic heart were observed in RT. Global and regional RV functions were comparable between groups. Allometric scaling altered data interpretation in some variables.

Item Type: Article
Additional Information: The final publication is available at Springer via http://dx.doi.org/10.1007/s00421-015-3147-3
Uncontrolled Keywords: 1106 Human Movement And Sports Science
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: SPRINGER
Related URLs:
Date Deposited: 11 Mar 2016 14:01
Last Modified: 17 Mar 2016 00:50
DOI or Identification number: 10.1007/s00421-015-3147-3
URI: http://researchonline.ljmu.ac.uk/id/eprint/3168

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