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Extremes of cerebral blood flow during hypercapnic squat‐stand maneuvers

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Squat‐stand maneuvers (SSMs) are a popular method of inducing blood pressure (BP) oscillations to reliably assess dynamic cerebral autoregulation (dCA), but their effects on the cerebral circulation remain controversial. We… Click to show full abstract

Squat‐stand maneuvers (SSMs) are a popular method of inducing blood pressure (BP) oscillations to reliably assess dynamic cerebral autoregulation (dCA), but their effects on the cerebral circulation remain controversial. We designed a protocol whereby participants would perform SSMs under hypercapnic conditions. Alarmingly high values of cerebral blood flow velocity (CBFV) were recorded, leading to early study termination after the recruitment of a single participant.

Keywords: blood flow; squat stand; blood; stand maneuvers; cerebral blood

Journal Title: Physiological Reports
Year Published: 2021

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