Effects of Different Biking Exercise Intensity on Cerebral Blood Flow and Executive Control of Male College Students

• Main Authors: chung.ming.yi, 鍾銘益
• Other Authors: 方進隆
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/12323746515154607780

碩士 === 國立臺灣師範大學 === 體育學系在職進修碩士班 === 102 === Purposes: The previous studies have indicated the moderate aerobic exercise can improve the cognitive function, but few study has conductedto exam the effect of low intensity aerobic exercise. The main purposes of this study are to compare the effects of different exercise intensity (resting, 20% HRR and 50%HRR) of acute 30 minutes-bicycling exerciseon the cerebral blood flow (total hemoglobin and tissue saturation index, TSI) and executive controls (accurate rate and reaction time) of male college students. Methods: There were 20 healthy right-handed male college students were recruited as the subjects of this study. Each subject was assignedand received 3 different intensity exercises randomly, including 30 minutes resting, 20% HRR and 50% HRR cycling exercise, at least 2 days apart. During each trial, the subjects were received the Stenberg working memory test to measure accuracy and reaction time and, and the Near Infrared Spectroscopy(NIRS)was used to measure the total hemoglobin and TSI at prefrontal brain before, during and after exercise (5 minutes after exercise). The collected data were represented by the differences of the performance of executive controls and the blood flows (the value during exercise or after exercise –pre-exercise or baseline) and the 2 Way repeated measure ANOVA was used for data analysis and comparisons. Results: 1, 30-minutes low intensity and moderate intensity bicycling exercise had no significant effects on the total hemoglobin and TSI. 2, The reaction time of right hand after 30 minute moderateintensity cycling exercise (50%HRR) was significantly improved than that of pre-exercise (p<.05). 3, the reaction time of executive control was not affected by 30 minute low intensity cycling exercise(20%HRR). 4, 30 minutes low intensity and moderate intensity cycling exercise had no effects on accurate rate of right hand and left hand executive control. Conclusion: the acute low intensity cycling exercise has no effect on executive control, and the reaction time of executive control is improved after acute moderate cycling exercise which may not related to cerebral blood flow.