Effect of gender on blood flow velocities and blood pressure: role of body weight and height

Noor Azmi, Azran Azhim and Akioka, Kohei and Akutagawa, Masatake and Hirao, Yuji and Yoshizaki, Kazuo and Obara, Shigeru and Nomura, Masaharu and Tanaka, Hiroyuki and Yamaguchi, Hisao and Kinouchi, Yohsuke (2007) Effect of gender on blood flow velocities and blood pressure: role of body weight and height. In: 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 (EMBS 2007), 23-26 Aug. 2007, Convention Center, “Cité Internationale”, Lyon, France.

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Abstract

Aging and gender alter arterial hemodynamic function. Gender-related differences in body size may affect the arterial hemodynamics such as systolic blood pressure, wave reflection and pressure wave propagation. To assess the possibility that the differences of carotid blood velocities and brachial blood pressure in women are related to body size, we investigated the arterial hemodynamics in 50 healthy young adults (30 men, 20 women) between the age ranges of 20 to 29 years old. Blood velocities are characterized to 5 components of velocity waveforms as peak systolic (S1), second systolic (S2), incisura between systole and diastole (I), peak diastolic (D) and end-diastolic velocity wave (d). As the most pronounced systolic blood pressure is lower in young women than men (P<0.05). Women have higher diastolic velocity components and second systolic velocity, but have lower systolic velocity compared to men. From that, women have a significant greater wave reflection, smaller vascular resistive and lower vascular elastic recoil than in men. Greater body weight is associated with higher blood pressures (P<0.05) and lower blood velocities (P<0.05). Shorter body height affects not only the increased velocity wave reflection index (r= -0.519, P>0.0001), but also the decrease of peripheral vascular resistive index (RI) and arterial vascular elastic recoil index (r= 0.463, P<0.0001; r= 0.481, P<0.0001, respectively). In conclusion, body size influences blood pressure and velocity regulations in the young population.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	7380/43647 (ISBN: 978-1-4244-0787-3, DOI: 10.1109/IEMBS.2007.4352453)
Uncontrolled Keywords:	ageing bioacoustics blood pressure measurement cardiovascular system refractive index waveform analysis
Subjects:	T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biotechnology
Depositing User:	Ir Dr Azran Azhim Noor Azmi
Date Deposited:	04 Aug 2015 11:06
Last Modified:	04 Aug 2015 11:06
URI:	http://irep.iium.edu.my/id/eprint/43647

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