Hemodynamic Responses during Enduro-Motorcycling Performance

Frontiers in Physiology
Irene SannaAntonio Crisafulli

Abstract

Much of the information available in the literature on physiological responses during Enduro motorcycling is related to heart rate (HR) and blood lactate (BLa). The aim of this work was to investigate the hemodynamic changes that occur during a 10-min session of Enduro motorcycling. Fifteen skilled riders were enrolled on the study and all participants underwent an Enduro-motorcycling session on a standard track. Hemodynamics were assessed using a miniaturized impedance cardiograph. Results show that HR significantly increased from 96.5 ± 12.8 bpm at rest to 153.1 ± 17.7 bpm during riding, while stroke volume (SV) increased from 53.5 ± 14.1 to 72.2 ± 22.1 ml and cardiac output (CO) from 5.0 ± 1.1 to 10.9 ± 3.0 L·min-1. Moreover, ventricular emptying rate (VER) increased from 192.9 ± 43.0 to 324.1 ± 83.6 ml·s1 and ventricular filling rate (VFR) from 141.1 ± 160.5 to 849 ± 309 ml·s-1. Taken together, these data suggest that Enduro motorcycling induces substantial cardiovascular activation, not only in terms of chronotropism but also in terms of cardiac performance and pre-load, thereby increasing SV and CO. Finally, it is likely that sympathetic-mediated venous constriction occurred. This in turn improved VFR and recruited the Fr...Continue Reading

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Citations

Apr 5, 2020·Scandinavian Journal of Medicine & Science in Sports·Claudia Guglielmino, Giuseppe Musumeci
Dec 14, 2018·Journal of Applied Physiology·Silvana RobertoAntonio Crisafulli
Feb 21, 2019·European Journal of Applied Physiology·Gabriele MulliriAntonio Crisafulli
Mar 15, 2018·Sports Medicine·Emanuele D'ArtibaleJohn B Cronin
Jan 9, 2019·Frontiers in Physiology·Antonio CrisafulliRicardo Brandão Oliveira
Feb 4, 2021·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Virginia PinnaAntonio Crisafulli

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Methods Mentioned

BETA
blood
was drawn

Software Mentioned

- Pad Prism
Enduro
Graph

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