Sex influence on myocardial function with exercise in adolescents

Rowland, Thomas and Unnithan, Viswanath and Garrard, Max and Roche, Denise and Holloway, Kathryn and Sandoval, Julie and Marwood, Simon (2010) Sex influence on myocardial function with exercise in adolescents. American Journal of Human Biology, 22 (5). pp. 680-682. ISSN 10420533

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Official URL: http://doi.org/10.1002/ajhb.21065

Abstract

Objectives: Ventricular systolic functional response to exercise has been reported to be superior in adult men compared to women. This study explored myocardial responses to maximal upright progressive exercise in late pubertal males and females. Methods: Doppler echocardiographic techniques were utilized to estimate myocardial function response to a bout of progressive cycle exercise. Results: Systolic functional capacity, as indicated by ejection rate (12.5 ± 2.8 and 13.1 ± 1.0 [×10−2] ml s−1 cm−2 for boys and girls, respectively) and peak aortic velocity (208 ± 45 and 196 ± 12 cm s−1, respectively) at maximal exercise, did not differ between the two groups. Similarly, peak values as well as increases in transmitral pressure gradient (mitral E flow velocity), ventricular relaxation (tissue Doppler imaging E′), and left ventricular filling pressure (E/E′ ratio) as estimates of diastolic function were similar in males and females. Conclusions: This study failed to reveal qualitative or quantitative differences between adolescent boys and girls in ventricular systolic or diastolic functional responses to maximal cycle exercise

Item Type: Article
Additional Information and Comments: The definitive version is available at http://onlinelibrary.wiley.com/doi/10.1002/ajhb.21065
Keywords: sex influences, exercise, girls
Faculty / Department: Faculty of Science > School of Health Sciences
Depositing User: Kat Holloway
Date Deposited: 01 May 2016 14:56
Last Modified: 12 Jul 2016 11:39
URI: http://hira.hope.ac.uk/id/eprint/1288

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