Key result
Men with resting diastolic arterial pressure of 80-90 mmHg had faster heart rate recovery and accelerated recovery of autonomic control after aerobic exercise compared to those with DAP < 80 mmHg.
Why the study?
Does rest diastolic arterial pressure between 80 and 90 mmHg affect autonomic heart rate recovery after exercise in normotensive men compared to DAP < 80 mmHg?
Observational (n=35)
Does rest diastolic arterial pressure between 80 and 90 mmHg affect autonomic heart rate recovery after exercise in normotensive men compared to DAP < 80 mmHg?
In healthy young men, a high-normal resting diastolic blood pressure (80-90 mmHg) is associated with faster autonomic heart rate recovery after exercise compared to lower diastolic pressures.
Should not yet inform blood pressure management; hypothesis-generating for autonomic recovery in normotensives.
Rest arterial pressure has been shown to be associated with cardiovascular mortality. Autonomic heart rate control during recovery from exercise is estimated to detect changes in cardiovascular system, which may lead to cardiovascular diseases. We assessed the involvement of rest diastolic arterial pressure (DAP) on heart rate dynamics after exercise in normotensive physically active men. METHOD: We evaluated healthy physically active men aged 18 to 22 years old divided into two unequal groups: G1-rest DAP between 80 and 90 mmHg (N=11) and G2-rest DAP < 80mmHg (N=24). Volunteers performed physical exercise on a treadmill with intensity equivalent to 60% of V max . Heart rate recovery in the first (HRR1) and third (HRR3) minute after exercise were measured and heart rate variability (HRV) was examined in the time and frequency domain. Additionally, we performed the quantitative analysis of the Poincar plot. HRV was recorded in the following phases: the 10-minute period before exercise, during exercise and the 60 minute period after exercise. RESULTS: We found no significant difference between G1 and G2 concerning HRV changes during exercise. The G2 group exhibited a delayed recovery of SDNN, RMSSD, RRTri, LF, HF, LF/HF, SD1 and SD2 indices during recovery from exercise. HRR1 and HRR3 was greater in the G2 group. CONCLUSION: Normotensive physically active men with DAP between 80 and 90 mmHg presented faster heart rate recovery and an accelerated recovery of heart rate autonomic control after aerobic exercise.
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Gomes et al. (2017) conducted an observational in Healthy physically active men (n=35). Resting diastolic arterial pressure 80-90 mmHg vs. Resting diastolic arterial pressure < 80 mmHg was evaluated on Heart rate recovery and heart rate variability after exercise. Men with resting diastolic arterial pressure of 80-90 mmHg had faster heart rate recovery and accelerated recovery of autonomic control after aerobic exercise compared to those with DAP < 80 mmHg.
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