Purpose: Aging and atherosclerotic changes enhance the stiffness of the arterial wall, and the pulse wave travels faster in stiffer vessel. Measurement of the brachial ankle pulse wave velocity (baPWV) is a non-invasive method for evaluating the stiffness of the vessel wall. We investigated the relation between the baPWV and risk factors for atherosclerosis. Method: We studied 180 subjects (38 male and 142 female; mean age 46 years, range 24 to 76 years). The instrument used for evaluating the baPWV was a Vasoguard (VIASYS Healthcare, Dublin, Ohio, USA), and measurements were performed in the right arm and in both ankles. Data were analyzed using Pearson correlation, t-test, and multiple regression analysis. Multiple regression analysis was performed for age, sex, smoking, hypertension, height, weight, body mass index (BMI), total cholesterol, LDL, HDL, TG, and HbA1c. Result: Right and left baPWVs were significantly increased (P＜0.05) in subjects with the following risks: older age, high body weight, high BMI, high total cholesterol, high LDL, high TG, high HbA1c, and low HDL. Right and left baPWVs were also significantly increased (P＜0.05) in male subjects with a history of smoking and hypertension. Multiple regression analysis showed that age, sex, and LDL were independent determinants of the right and left baPWVs. Conclusion: This study provides evidence that increased age, male gender, and high serum LDL levels are risk factors that contribute to arterial stiffness. Measurement of the baPWV may be a useful method for evaluating vascular status.
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