Key result
Habitual physical exercise is linked to lower SBP by reducing aortic wall stiffness.
Why the study?
Does habitual physical exercise improve systolic blood pressure and aortic distensibility in adult males?
Cross-Sectional (n=678)
Does habitual physical exercise improve systolic blood pressure and aortic distensibility in adult males?
Habitual physical exercise may decrease systolic blood pressure by directly reducing aortic wall stiffness and indirectly decreasing diastolic blood pressure.
Answers are grounded in this paper and cite their sources.
May support exercise for SBP via aortic stiffness; hypothesis-generating from cross-sectional data, needs prospective confirmation before practice change.
Japan Journal of Physical Fitness Sports Medicine; Volume 47:313-326, 1998 Abstract: The authors hypothesized that habitual physical exercise and aortic distensibility would be the major factors that influence systolic BP. This study was designed to analyze the relationships among systolic BP (SBP) and parameters determined at medical checks, including age, diastolic BP (DBP), aortic pulse wave velocity (APWV) index (APWVI:APWV standardized by the diastolic BP), plasma lipid profiles (TC, TG), plasma glucose during an oral glucose tolerance test (2 h-OGTT), percentage body fat (%Fat), cigarette smoking habit (Cigarettes), alcohol consumption (Alcohol), and physical activity index (PAI) using a questionnaire in 678 males aged 30-69 yr, who visited a hospital for a thorough medical checkup. For analysis of factorial structure in the subjects, principal factor analysis was applied to the correlation matrix, which was calculated with 12 variables. Correlational analysis and path analysis were applied to confirm the hypothetical model. The results demonstrated that DBP and APWVI were the major factors that significantly affected the SBP. The PAI was significantly and inversely correlated not only with the APWVI but also with %Fat, which was significantly and positively correlated with the DBP. In conclusion, aortic wall stiffness may be an independent factor in the manifestation of systolic hypertension, and habitual physical exercise may decrease the SBP through direct reduction of aortic wall stiffness and indirectly decreasing the DBP.
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Kakiyama et al. (1999) reported a cross-sectional. Habitual physical exercise was evaluated on Systolic blood pressure (SBP). Habitual physical exercise was inversely correlated with aortic stiffness and body fat, suggesting it may decrease systolic blood pressure by reducing aortic wall stiffness.
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