Key result
Large exercise-induced fluctuations in BP and HR are linked to increased pulse wave velocity.
Why the study?
PWV is widely used to assess arterial elasticity but is influenced by multiple factors, prompting evaluation of the impact of blood pressure and heart rate on PWV.
Does exercise-induced fluctuation in blood pressure and heart rate affect carotid PWV measurements in healthy young adults?
Observational (n=20)
No
Does exercise-induced fluctuation in blood pressure and heart rate affect carotid PWV measurements in healthy young adults?
Significant fluctuations in blood pressure and heart rate can artificially increase pulse wave velocity measurements, highlighting the need to account for these factors during arterial stiffness assessment.
Fluctuations in BP/HR may artifactually elevate PWV; leaves open need for standardized conditions in clinical assessments.
Pulse Wave Velocity (PWV) is widely used to assess arterial elasticity and is an independent risk factor for cardiovascular disease, but it is influenced by multiple factors. Objective is to assess the impact of blood pressure and heart rate on PWV. Twenty healthy young individuals were enlisted as subjects. Real-time blood pressure monitoring was performed by non-invasive continuous blood pressure measuring instrument during the detection of subjects' carotid PWV. During real-time blood pressure monitoring, exercise load caused fluctuations in blood pressure and heart rate, and PWV changes of each subject under different blood pressure and heart rate conditions were recorded simultaneously. Among the 20 subjects, PWV was associated with blood pressure in four subjects and heart rate in one subject. PWV increased with rising blood pressure when the systolic pressure fluctuation range was >=30mmHg, diastolic pressure fluctuation range was >=18mmHg, and mean arterial pressure fluctuation range was >=20mmHg. PWV increased with rising heart rate, when the heart rate fluctuation range was >30 beats/min. Blood pressure and heart rate have some influence on PWV. However, the fluctuation range of blood pressure and heart rate should reach a certain value, the impact is significant.
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Liu et al. (2024) conducted an observational in Healthy (n=20). Blood pressure and heart rate fluctuations vs. Resting state was evaluated on Correlation between pulse wave velocity and blood pressure/heart rate. Pulse wave velocity significantly increased when systolic pressure fluctuated by ≥30 mmHg, diastolic by ≥18 mmHg, mean arterial pressure by ≥20 mmHg, and heart rate by >30 beats/min.
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