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. Keywords: Pulse wave velocity, Blood pressure, Heart rate.

Department of Ultrasound Beijing Friendship Hospital Capital Medical University Beijing China

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