Blood Pressure during Intermittent Progressive Workload Exercise: Comparison of Two Noninvasive Continuous Blood Pressure Monitoring Devices

Abstract

　This study aimed to use two different noninvasive continuous blood pressure monitoring devices to compare changes in blood pressure during intermittent progressive workload exercise with a bicycle ergometer. Subjects included 12 males (age 19.9±1.4 years, height 171.8±5.1cm, and body weight 64.7±6.3kg). Blood pressure was monitored with the PORTAPRES (Finapres Medical Systems), which relies on the volume-compensation method, and the Radia press RBP-100 (KANDS), which uses variations in blood hemoglobin. 　Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were almost the same when measured by both devices during rest. The outlier rate of continuous blood pressure values during rest was less when measured by the PORTAPRES than by the Radia press RBP-100. With the PORTAPRES, the outlier rate tended to increase during exercise rather than during rest. In addition, SBP and DBP increased with progressive workload. However, the increase of SBP was larger in the PORTAPRES. In summary, the pressure changes measured by both devices were almost the same during rest, but differed during intermittent progressive workload exercise.