Circadian Rhythm At Rest And Exercise During Seven-Day/24 H Ambulatory Blood Pressure Monitoring

Objective: In our previous study we compared the 24-hour BP profile of 7 days ambulatory monitoring in days with exercise (0–24 h) and in days without exercise (25–48 h) in healthy subjects. The aim of the study is to evaluate seven day/24 h effect of exercise in the daily exercise activity of one hour on 24 h BP profile from the seven-day/24-h ABPM. Design and method: We evaluate mean 24-hour SBP and DBP and weekly mean BP values from the seven-day/24-h ABPM T 2431 (A and D, Japan). We used aerobic training in 40 healthy subjects, combined training for 20 healthy people and combined training in 53 patients after myocardial infarction in cardiovascular rehabilitation. Results: In healthy subjects with aerobic training, seven days of SBP was 115 ± 1.1 mmHg, diastolic 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 healthy subjects with combined training 7 days of SBP was 113 ± 1.8 mmHg, DBP 68 ± 1.4 mmHg, days with exercise (0–24 h) SBP were 112 ± 1.9 mmHg, diastolic 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. Conclusions: Our results showed that 1 hour of aerobic training, combined training did not change the 24-hour mean SBP and DBP profile assessed from a seven-day ABPM (7 days/24 hours) in healthy subject and in patients, if the timing of exercise is during the day hours.