回転刺激が加速度脈波と血圧に及ぼす影響 : 若年群と中年群の比較

概要

論文の詳細を見る
The purpose of this study was to examine the relationship between motion sickness and peripheral circulation using Accelerated Plethysmography (APG) before and after a motion-sickness rotation test. Twenty-five healthy males were classified into two age groups. The young group consisted of 16 males 19.1±0.3 years of age, whereas the middle-age group consisted of 9 males 42.6±2.6 years of age. Subjects underwent a chair rotation test designed to induce motion sickness. The procedure included 1 minute of steady rotation (30 RPM), followed by a 5-minute recovery period. A 2^<nd> period (2-minutes) of 60 rotations was then administered. Blood pressure, and APG were measured at rest and during the recovery period that followed 30 rotations. Conscious aggravation was measured using a 2-point scale method after 60 rotations. The APG waveform analyzed for components such as the b/a ratio, c/a ratio, d/a ratio and APG index. 1) Blood pressure, and b/a ratio increased significantly; d/a ratio, and APG index decreased significantly during the recovery period with conscious aggravation. 2) In subjects without the appearance of conscious aggravation, blood pressure and the APG waveform were unchanged during recovery period. These results therefore indicate that APG components obtained from the forehead may be used as an indicator for estimating conscious aggravation.
2007-03-25