The cerebrovascular response to a single session of exercise
Jessica Steventon1, Catherine Foster1, Daniel Helme2, Monica Busse3, and Kevin Murphy1
1CUBRIC, Cardiff University, Cardiff, United Kingdom, 2School of Medicine, Cardiff University, Cardiff, United Kingdom, 3School of Healthcare Sciences, Cardiff University, Cardiff, United Kingdom
Here
we examine the acute effects of a single exercise session on cerebrovasculature
using a multi-TI arterial spin labelling (ASL) sequence to measure cerebral blood flow (CBF), and
a dual-echo ASL sequence with hypercapnia to
measure cerebrovascular reactivity (CVR). We show
that contrary to previous smaller studies, 20-minutes of aerobic exercise does
not affect CBF or CVR in the 60-minute period after exercise. Despite this, changes
in CBF after exercise were related to individually-determined systemic
physiological changes associated with exercise intensity, informing on moderators
of cerebral autoregulation.
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