초미세먼지 환경에서의 일회성 유산소 운동이 동맥경직도에 미치는 영향
Acute Effect of Moderate-Intensity Aerobic Exercise on Arterial Stiffness in Fine Particulate Matter Environment: A Pilot Study
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PURPOSE:This study aimed to examine the effect of one bout of moderate-intensity aerobic exercise on arterial stiffness under ambient fine particulate matter (PM2.5) exposure. METHODS: In a randomized crossover design, seven healthy young men performed 30 minutes of treadmill running at 70% of heart rate peak under high PM2.5 and low PM2.5 exposure. Arterial stiffness was assessed by measuring the carotid-femoral pulse wave velocity and augmentation index, a measure of pulse wave reflection before and after each exercise intervention. RESULTS: Regardless of the PM2.5 exposure, brachial systolic blood pressure and heart rate increased in response to one bout of moderate-intensity aerobic exercise (p<.05). However, the augmentation index adjusted at a heart rate of 75 beats/min, central diastolic blood pressure, central mean arterial pressure, and brachial diastolic blood pressure were increased after one bout of moderate-intensity aerobic exercise under the high PM2.5 condition (p<.05). CONCLUSIONS: Moderate-intensity aerobic exercise at the high PM2.5 level may result in acute negative arterial stiffness and blood pressure responses even in healthy young men.
Abstract
PURPOSE:This study aimed to examine the effect of one bout of moderate-intensity aerobic exercise on arterial stiffness under ambient fine particulate matter (PM2.5) exposure. METHODS: In a randomized crossover design, seven healthy young men performed 30 minutes of treadmill running at 70% of heart rate peak under high PM2.5 and low PM2.5 exposure. Arterial stiffness was assessed by measuring the carotid-femoral pulse wave velocity and augmentation index, a measure of pulse wave reflection before and after each exercise intervention. RESULTS: Regardless of the PM2.5 exposure, brachial systolic blood pressure and heart rate increased in response to one bout of moderate-intensity aerobic exercise (p<.05). However, the augmentation index adjusted at a heart rate of 75 beats/min, central diastolic blood pressure, central mean arterial pressure, and brachial diastolic blood pressure were increased after one bout of moderate-intensity aerobic exercise under the high PM2.5 condition (p<.05). CONCLUSIONS: Moderate-intensity aerobic exercise at the high PM2.5 level may result in acute negative arterial stiffness and blood pressure responses even in healthy young men.
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