中高齢者における運動療法に伴う血圧と部位別脈波速度の変化

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Aerobic exercise is known to reduce pulse wave velocity (PWV), which reflects arterial stiffness. However, aerobic exercise has a depressor effect, and PWV strongly depends on blood pressure (BP). Therefore, improvement of PWV with aerobic exercise may have an indirect effect on reducing BP. In this study, the relationship between changes in BP and regional PWV measured by oscillometric and tonometry sensors before and after exercise therapy emphasizing aerobic exercise was evaluated in 46 elderly people receiving outpatient treatment for lifestyle-related diseases (7 males and 39 females, mean age: 68 years). In all subjects, BP and PWV measurements were performed before and after exercise therapy. PWV was measured between the brachium and ankle (baPWV), between the heart and femoral artery (hfPWV), and between the femoral artery and ankle (faPWV). During 6 months of exercise therapy, BP, baPWV, hfPWV and faPWV decreased significantly. By multiple regression analysis, the changes in systolic BP were extracted as factors correlated with changes in baPWV and faPWV. The changes in baPWV 0 = 0.639, p<0.0l) and faPWV (r = 0.649, p<0.01) correlated significantly with changes in systolic BP. However, changes in hfPWV were not extracted as a factor correlated with changes in systolic BP (r = 0.228, p = n. s). In conclusion, exercise therapy emphasizing aerobic exercise was suggested to reduce the stiffness of both the lower limb artery (peripheral artery) and the aorta (central artery). Peripheral arterial stiffness improved concurrently with a reduction in BP as a result of exercise therapy; but there is a possibility that the improvement of central arterial stiffness is not dependent on reducing BP.
日本体力医学会の論文
2008-06-01

中高齢者における運動療法に伴う血圧と部位別脈波速度の変化

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