The Influence Of Exercise Upon Twenty-four Hours Ambulatory Blood Pressure And Its Mechanism

Objective:To study the influence of one aerobic exercise,anaerobic exercise and six weeks submaximal exercise upon twenty-four hours ambulatory blood pressure and its mechanism,so as to understand the effects of exercise on normotensive,s regularity and provid the base of experiment on exercise preventing blood pressure.Methods:Using the methods of documentary,investigation,statistics, empirical study,this study compared twice 24-hour Blood Pressure in quiet. At the same time, measured the 24-hour Blood Pressure after one aerobic and anaerobic exercise.This study observed the effects cf six weeks aerobic exercise on 24-hour Blood Pressure,compared before and after six weeks aerobic exercise blood serum nitric oxide and investigated the mechanism of exercise on 24-hour Blood Pressure.The Mobil-O-Graph Ambulatory 24-hour Blood Pressure Monitoring system(ABPM) where manufactured in the company of IEM in German was used to measure the blood pressure. Anaerobic exercise used Monark which Sweden produces the 894E power bicycle carrying out thirty seconds Wingate experiment,and the loading is 0.075kg/kg boody weight. Aerobic exercise used Monark which Sweden produces the 839E power bicycle. One aerobic exercise used manual mode increasing loads.The prepared time of aerobic exercise is five minites.After achiving the aim of heart rate 140 seconds/minite, continued 25 minites exercise.After exercise, subjects had 10 minutes resting.Six-week aerobic exercise used Monark which Sweden produces the 839E power bicycle. The mode of BRUCE was used aerobic exercise. The prepared time of aerobic exercise is five minites. After achiving the maximum heart rate,s85%,stoped exercise. After exercise, subjects had 10 minutes resting.The frequency of exercise was three times per week. After every time recorded the exercise time,maximum quantity of respiratory oxygen,asking the subjects,s subjective feeling rank. Blood serum nitric oxide was determined through using in front of the finger at early morning.Using nitrc acid restoring method,this study used BTS-333 biosystems reagents instruments.The Chemistry was supposed by Nanjingjianchengshengwugongchengyanjiusuo. Results:①Compared to continuous twice 24-hour blood pressure at quiet,this study discovered no marked changes(P>0.05).It is said that subjects,24-hour blood pressure at quiet is stable.②Compared to before and after exercise,this study discovered day,night and 24-hour systolic blood pressure,diastolic blood pressure and mean arterial pressure having significantly drop(p<0.05).Compared to before exercise, this study discovered the tryings, having about 2mmHg after one times aerobic exercise.After exercise 24-hour blood pressure dropped between fifteen hours and twenty three hours,and the average was 21.25 hours.③After one anaerobic exercise,day and 24h systolic blood pressure, and diastolic blood pressure can high significantly(p<0.05).But the blood pressure at night has no significantly changes.④After six weeks submaximal exercise,subjects,exercise ability having steadily improved.That is the time of exercise prolonged, maximum quantity of respiratory oxygen improved,the subjects, subjective feeling rank lowed.⑤Compared to before exercise,the experimental group day and 24h systolic blood pressure, mean arterial pressure and day systolic blood pressure variation coefficient dropped significantly. But the blood pressure and the blood pressure variability at night has no significantly changes.⑥Compared to before exercise,after six weeks submaximal exercise the trying group,s serum nitric oxide dropped significantly(p<0.05).⑦The trying group had the tendency of inverse correlation between day,night and 24h blood pressure and the times of exercise(p<0.05).Conclusion:①After one aerobic exercise, this study discovered day,night and 24-hour blood pressure having significantly drop.Compared to before exercise, this study discovered the tryings, having about 2mmHg after one times aerobic exercise.After exercise 24-hour blood pressure dropped between fifteen hours and twenty three hours,and the average was 21.25 hours.②After one anaerobic exercise,day and 24h systolic blood pressure, and diastolic blood pressure can high significantly.③Compared to before exercise,the experimental group day and 24h systolic blood pressure, mean arterial pressure and day systolic blood pressure variance and variation coefficient.dropped significantly. But the blood pressure and the blood pressure variability at night has no significantly changes.That is six weeks submaximal exercise can dropped significantly to normotensive,s blood pressure.④The possible mechanism of aerobic exercise dropping blood pressure is the body improved the sensitive of serum nitric oxide.