Inspiratory resistance, cerebral blood flow velocity, and symptoms of acute hypotension.

Abstract

INTRODUCTION Symptoms of orthostatic intolerance, e.g., following prolonged bed rest and microgravity exposure, are associated with reductions in cerebral blood flow. We tested the hypothesis that spontaneously breathing through an impedance threshold device (ITD) would attenuate the fall in cerebral blood flow velocity (CBFV) during a hypotensive… (More)

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