Exercise intensity influences cardiac baroreflex function at the onset of isometric exercise in humans

James Fisher; S Ogoh; CN Young; DM Keller; PJ Fadel

doi:10.1152/japplphysiol.00412.2007

Exercise intensity influences cardiac baroreflex function at the onset of isometric exercise in humans

James Fisher, S Ogoh, CN Young, DM Keller, PJ Fadel

Sport, Exercise and Rehabilitation Sciences

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

We sought to examine the influence of exercise intensity on carotid baroreflex (CBR) control of heart rate (HR) and mean arterial pressure (MAP) at the onset of exercise in humans. To accomplish this, eight subjects performed multiple 1-min bouts of isometric handgrip (HG) exercise at 15, 30, 45 and 60% maximal voluntary contraction (MVC), while breathing to a metronome set at eupneic frequency. Neck suction (NS) of -60 Torr was applied for 5 s at end expiration to stimulate the CBR at rest, at the onset of HG (

Original language	English
Pages (from-to)	941-7
Number of pages	7
Journal	Journal of Applied Physiology
Volume	103
Issue number	3
Early online date	5 Jul 2007
DOIs	https://doi.org/10.1152/japplphysiol.00412.2007
Publication status	Published - 5 Jul 2007

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10.1152/japplphysiol.00412.2007

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Exercise intensity influences cardiac baroreflex function at the onset of isometric exercise in humans

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