漸増漸減運動負荷における頸動脈血流動態について

概要

論文の詳細を見る
Cerebral blood volume flow and flow velocity have been reported to increase during dynamic exercise, but whether the two increase in parallel and whether both increases occur as functions of exercise intensity remain unsettled. The purpose of the present study was to investigate the blood flow velocity in the common carotid artery in humans during treadmill walking of stepwise progressive increases and decreases in exercise intensity. Two male trained subjects and 2 males untrained subjects performed five 3-min treadmill walks at 60, 90, 120, 90 and 60 m/min. The blood flow velocity in the common carotid artery was measured using the Doppler ultrasound method. The results showed that blood flow velocity in the common carotid artery was different between trained and untrained group. Blood lactate concentration of untrained group was significantly higher than trained group. Oxygen uptake / heart rate of trained group was significantly higher than untrained group. It was suggested that blood flow velocity in the common carotid artery was mainly influenced by training status of subjects.
鳴門教育大学の論文
2005-03-04