Relationship between echocardiogram and physical parameters in experienced resistance trainers : A pilot study

Journal article


Hackett, Daniel, Mitchell, Lachlan, Clark, Jillian, Hagstrom, Amanda, Keogh, Justin and McLellan, Chris. (2021). Relationship between echocardiogram and physical parameters in experienced resistance trainers : A pilot study. The Journal of Sports Medicine and Physical Fitness. 61(9), pp. 1290-1300. https://doi.org/10.23736/S0022-4707.20.11615-3
AuthorsHackett, Daniel, Mitchell, Lachlan, Clark, Jillian, Hagstrom, Amanda, Keogh, Justin and McLellan, Chris
Abstract

BACKGROUND: A paucity of research exists concerning physiological factors influencing heart structure and function in strength athletes. This pilot study investigated whether body composition and muscle performance are associated with indices of cardiac structure and function in experienced resistance trainers.
METHODS: A cross-sectional study designed was employed to address the study aim. Seventeen males (median age 33.0 years) and eight females (median age 32.5 years) with backgrounds in bodybuilding and powerlifting participated in this study. Muscle performance, body composition and echocardiographic measures were performed. Mann-Whitney U-tests were used to examine differences between males and females. Spearman’s Rho partial correlation analyses (adjusting for sex) were conducted to examine relationships between physical and echocardiogram parameters.
RESULTS: Moderate to strong positive correlations were found between fat-free mass and aortic root, right ventricular internal dimension, interventricular septum thickness, left ventricular posterior wall thickness, left atrium area, left ventricular end-diastolic volume, and left ventricular end-systolic volume (r: 0.43-0.76, P≤0.03). Moderate to strong positive correlations were found between leg press 1RM and aortic root, left ventricular internal dimension diastole, left atrium area, left ventricular end-diastolic volume, and left ventricular end-systolic volume (r: 0.49-0.67, P≤0.02).
CONCLUSIONS: Resistance trainers with greater fat-free mass and lower body strength appear to have larger cardiac structures. Changes in heart size and function are likely to result from long-term strenuous resistance training. Due to the suspected prevalence of performance enhancing drug use among powerlifters and bodybuilders, care is required to rule out pathological conditions.

Keywordsathletes; exercise-induced cardiomegaly; weight lifting; heart function tests; physiological adaptation
Year2021
JournalThe Journal of Sports Medicine and Physical Fitness
Journal citation61 (9), pp. 1290-1300
PublisherEdizioni Minerva Medica
ISSN0022-4707
Digital Object Identifier (DOI)https://doi.org/10.23736/S0022-4707.20.11615-3
Scopus EID2-s2.0-85117922071
Open accessPublished as green open access
Page range1290-1300
FunderCollaborative Research Network for Advancing Exercise and Sports Science (CRN-AESS)
Author's accepted manuscript
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Open
Publisher's version
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Controlled
Output statusPublished
Publication dates
Online03 Dec 2020
Publication process dates
Accepted30 Nov 2020
Deposited30 Nov 2022
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