| Summary: | 碩士 === 國立高雄師範大學 === 體育學系 === 99 === The purposes of this study were (a) to understand the effect of normotension middle-aged adults, aged 40 to 64 yrs, after taking acute moderate-to-vigorous intensity aerobic exercise, and an ambulatory blood pressure (ABP) monitoring, (b) to discuss the relationships between participant’s characteristics (age, smoking, drinking, body mass index, percentage of body-fat, free-fat mass, skeletal muscle mass, and physical activity) and ABP. Methods: Twenty-four volunteers were recruited, and all of them were interfered randomly with two types of exercise (acute cycling ergometer aerobic exercise and virtual without exercise). (1) Paired t-tests were used to test the differences between two intervenes on blood pressure (BP), including systolic BP, diastolic BP and mean BP in mean 24-hours BP, day-time BP, night-time BP and heart rate. (2) Repeated-measures two-way ANOVAs were used to analyze temporal curves differences of two intervenes (BP, and heart rate), if significant using post hoc by least significance difference. (3) Independent-sample t-test were used to test the differences of smoking, gender, drinking in ABP. (4) Pearson’s product-moment correlation coefficients were used to examine the relationships between participant’s characteristics and ABP. Result: (1) There is no significance between two type of exercises in BP which including systolic BP, diastolic BP and mean BP in mean 24-hours BP, day-time BP, night-time BP. Day-time heart rate (t21 = -2.821, p = .01) of moderate-to-vigorous intensity aerobic exercise was significantly higher than virtutal. (2) The interaction effect of heart rate of temporal curves of two intervenes were significant (F(21,441) = 6.016, p < .05), and simple main effect showed moderate-to-vigorous intensity aerobic exercise was higher than virtutal for at least six hours; however, there were no significant interaction in systolic BP, diastolic BP and mean BP. (3) Smokers showed higher 24-hour diastolic BP (t20 = 2.628, p = .016) and mean BP (t20 = 2.292, p = .033). (4) BMI was positively correlated with 24-hour systolic BP (r = .53, p < .05) and mean BP (r = .44, p < .05); however, there were no correlations between 24-hour BP and other participant’s characteristics. Conclusions: Normotension middle-aged adults have no significant reduction of ABP after moderate-to-vigorous intensity aerobic exercise, but their heart rate were significant increased for at least for six hours. Because 24-h ABP were significantly related with among somking habits and BMI, Therefore, the top priority for blood pressure health in normotension middle-aged adults is to avoid smoking and to keep normal BMI.
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