Why the study?
Does rhythmic handgrip exercise modulate the responsiveness of cerebral and brachial circulations to sympathetic activation in healthy subjects?
Does rhythmic handgrip exercise modulate the responsiveness of cerebral and brachial circulations to sympathetic activation in healthy subjects?
Sympathetic vasoconstriction is blunted by exercise in skeletal muscle vasculature but remains unchanged in the cerebral circulation.
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Exercise attenuates sympathetic forearm vasoconstriction but not cerebral in healthy subjects; hypothesis-generating for patient populations.
Hartwich et al. (2010) studied this question.