Determinants of fast marathon performance: low basal sympathetic drive, enhanced postcompetition vasodilatation and preserved cardiac performance after competition

British Journal of Sports Medicine
G GratzeF Skrabal

Abstract

To test the hypothesis that enhanced postexercise vasodilatation is related to sympathetic drive to resistance vessels and to fast marathon performance. Prospective field study before and after running a marathon. 51 healthy amateur runners who volunteered to participate. The fastest competitor finished fourth, the slowest 1290 th out of 1324 participants. None. Competition time, beat-to-beat blood pressure by the vascular unloading technique, oscillometric blood pressure, beat-to-beat stroke volume by impedance cardiography, total peripheral resistance changes calculated from blood pressure and stroke volume changes, sympathetic modulation of vasomotor tone and parasympathetic modulation of sinus node function by spectral analysis of blood pressure and heart rate variability, baroreceptor reflex sensitivity by the sequence method. Slow performers, in contrast to fast performers, exhibited a higher 0.1 Hz band of diastolic blood pressure variability before the competition (0.1 Hz BPV) (40.0 (SD 2.39) vs 54.9 (2.47), p<0.001), diminished vasodilatation (-11.3 (4.78) vs -29.4 (3.23), p<0.01) and a decrease in stroke index (-14.9 (3.55) vs +0.9 (3.37), p<0.001) in response to the race. Single and multiple regression analyses furth...Continue Reading

Citations

Dec 25, 2009·European Journal of Applied Physiology·Martin BuchheitS Ahmaidi
Jan 15, 2013·European Journal of Applied Physiology·Christopher K WillieYu-Chieh Tzeng
Jan 30, 2015·Journal of Human Hypertension·T PérezJ C Gómez-Esteban
Mar 8, 2014·European Journal of Sport Science·Heather J A FouldsDarren E R Warburton
Feb 7, 2014·BMC Sports Science, Medicine and Rehabilitation·Omoyemi O Ogwumike, Ade F Adeniyi

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