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Title

Testing the vagal withdrawal hypothesis during light exercise under autonomic blockade: a heart rate variability study

Authors
Pichot, Vincent
Fagoni, Nazzareno
Adami, Alessandra
Tam, Enrico
Furlan, Raffaello
Barthélémy, Jean-Claude
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Published in Journal of Applied Physiology. 2018, vol. 125, no. 6, p. 1804-1811
Abstract We performed the first analysis of heart rate variability (HRV) at rest and exercise under full autonomic blockade on the same subjects, to test the conjecture that vagal tone withdrawal occurs at exercise onset. We hypothesized that, between rest and exercise: i) no differences in total power (PTOT) under parasympathetic blockade; ii) a PTOT fall under β1-sympathetic blockade; iii) no differences in Ptot under blockade of both ANS branches.
Keywords Arterial blood pressureAtropineBaroreflexesCardiovascular regulationMetoprolol
Identifiers
PMID: 30307822
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Research group Métabolisme énergétique (642)
Projects FNS: 3200B0_102181
FNS: 32003B_143427
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(ISO format)
FONTOLLIET, Timothée Matthieu et al. Testing the vagal withdrawal hypothesis during light exercise under autonomic blockade: a heart rate variability study. In: Journal of Applied Physiology, 2018, vol. 125, n° 6, p. 1804-1811. doi: 10.1152/japplphysiol.00619.2018 https://archive-ouverte.unige.ch/unige:127775

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Deposited on : 2019-12-11

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