Time course of brachial artery diameter responses to rhythmic handgrip exercise in humans

OBJECTIVE: Whether the dimensions of conduit arteries contribute to the time course of change in blood flow during voluntary rhythmic exercise, and the mechanisms governing such a response in humans, are not known. METHODS: The time course of change in the vascular and blood flow dynamics in the brachial artery during the transition between rest and 5 min of rhythmic handgrip exercise was assessed in humans using continuous measures of brachial …