Effect of different exercises and exercis under special environment on cerebral blood flow
This review summarized the effect on cerebral blood flow(CBF) and cerebral autoregulation(CA) of different kind of exercises with different intensity or under special environment.CBF is increased during moderate exercise but decreased in heavy exercise,as well as augmented in dynamic exercise yet maintained in static exercise.The change of CBF is due to the sympathetic activation and carbon dioxide change during exercise.Also,CA is not changed with the exercise,but might be impaired by exhaustive ones.CBF is enhanced for the heat remove during exercise in heat,yet reduced with hyperthermia because of the hyperventilation.And exercise under hypoxic exposure causes the more rapid CBF to provide adequate oxygen to brain,though acute hypoxic exposure inhibits this reaction.