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운동형태 및 valsalva maneuver가 뇌혈류에 미치는 영향
정일규(Il Gyu Jeong),오명진(Myung Jin Oh),윤재석(Jae Suk Yoon),김종오(Jong Oh Kim),이일우(Il Woo Lee),김명기(Myung Ki Kim),강금숙(Geum Sook Kang) 한국사회체육학회 2005 한국사회체육학회지 Vol.0 No.23
This study investigated the effects of exercise types and valsalva maneuver on brain blood flow. Eleven subjects were participated in this experiment. Brain blood flow was tested by TCD through 5 sessions: valsalva maneuver, resting, arm ergometer exercise at 15watts, arm ergometer exercise at 30watts, and curling the dumbbell of 15 kg. The values of mean cerebral arterial blood flow at valsalva maneuver and curling the dumbbell were decreased significantly compared to resting value(p<.05). The arm ergometer exercise at 15w and 30w increased significantly the cerebral arterial blood flow compared to resting state(p<.00). There was no significant difference of heart rate among exercise types regardless of brain blood flow velocity. Present results suggest that performing valsalva maneuver during weight lifting might lead to cerebral blood flow dysfunction such as fainting by reducing blood flood to brain whereas rhythmical exercise(arm ergometer) actually increases blood flood to brain.