Key result
Elite taekwondo athletes exhibit ~46% greater LV mass and thicker walls versus non-athletes.
Why the study?
Exercises may alter the structure and function of the heart, and the study aimed to compare left ventricular structure between young taekwondo athletes and non-athletes.
Does taekwondo athletic training alter left ventricular structure compared to non-athletes in young men?
Cross-Sectional (n=30)
No
Does taekwondo athletic training alter left ventricular structure compared to non-athletes in young men?
Taekwondo athletes exhibit increased left ventricular wall thickness and mass without changes in dimensions compared to non-athletes, indicating structural cardiac adaptation to this specific endurance activity.
Answers are grounded in this paper and cite their sources.
May suggest LV remodeling in young taekwondo athletes; leaves open clinical relevance pending larger prospective studies.
Introduction: Exercises may alter the structure and function of the heart.Achieving the optimum performance of endurance activity depends creates compatibility in different body systems especially in the heart.The purpose of this study is to compare left ventricular structure of young taekwondo athletes' men and non-athlete ones of Qazvin province.Methods: In this descriptive-comparative study, 15 young and adult athletes are randomly selected and 15 non-athletes are selected by convenience sampling method.Echocardiograph machines Kontron with two-dimensional method, M-mode and Simpson measurement are used to investigate the left ventricular structure of the subject.Validity of Echocardiographic device is examined through a survey completed by cardiologist and reliability of the device is measured by the Pearson Correlation Coefficient P = 0.91.Data are analyzed using SPSS.18. Results: The indexes of LVPWD, LVPWS, IVSD, IVSS and LVM (P = 0.001) of left ventricular of athletes are significantly higher than the one of non-athletes.But in the variables of LVEDV (P = 0.022) and LVESV (P = 0.023) there is no significant difference within two group.Conclusions: The thickness of the walls and left ventricular mass of taekwondo athletes increased but dimensions did not change.Hence, it is suggested that coaches practice aerobic exercises and increase cardio respiratory fitness and left ventricular capacity such as taekwondo through annual examination of athletes' heart structure.
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Rangraz et al. (2017) conducted a cross-sectional in Healthy (Athletes vs Non-athletes) (n=30). Elite taekwondo training vs. Non-athletes was evaluated on Left ventricular mass (LVM) (p=0.001). Elite taekwondo athletes exhibited significantly higher left ventricular wall thickness and mass compared to non-athletes, with no significant differences in left ventricular dimensions.
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