A18056 The effect of exercise on circadian rhythm from seven-day/24 h ambulatory blood pressure monitoring

Objectives: From our database of 654 seven-day/24 h ambulatory blood pressure monitoring (ABPM)we evaluated the effect of exercise in the daily exercise activity of one hour on 24 h BP profile. We have compare the 24-h BP profile of 7 days monitoring in days with exercise (0–24 h) and in days without exercise (25–48 h). Methods: We used aerobic training in 40 men, combined training for 20 men and combined training in 53 patients after myocardial infarction in cardiovascular rehabilitation. We evaluated mean 24-h SBP and DBP and weekly mean BP from the seven-day/24-h ABPM T 2431 (A and D, Japan). Results: In men with aerobic training, seven days of SBP was 115 ± 1.1 mmHg, DBP 69 ± 1.4 mmHg, in days with exercise (0–24 h) SBP was 115 ± 2.8 mmHg, DBP 69 ± 1, 7 mmHg, in days without exercise (25–48 h) SBP was 116 ± 3.4 mmHg, DBP 69 ± 2.2 mmHg. In men with combined training seven days of was 113 ± 1.8 mmHg, DBP 68 ± 1.4 mmHg, days with exercise (0–24 h) SBP were 112 ± 1.9 mmHg, DBP 69 ± 1, 5 mmHg, in days without exercise (25–48 h) SBP was 113 ± 1.8 mmHg, DBP 68 ± 1.4 mmHg. In patients with myocardial infarction, seventy-day mean SBP was 122 ± 4 mmHg, DBP 74 ± 3 mmHg, in days with exercise (0–24 h) SBP was 121 ± 3 mmHg, DBP 74 ± 2 mmHg, in days without exercise SBP 121 ± 3 mmHg, DBP 73 ± 3 mmHg. Conclusion: Our results showed that 1 hour of aerobic training, combined training did not change the 24-hour mean blood systolic and diastolic blood pressure profile assessed from a seven-day ambulatory blood pressure monitoring (7 days / 24 hours) in healthy subject and in patients, if the timing of exercise is during the day hours (6:00–22:00).