仰臥位から座位への姿勢変換が自律神経系活動におよぼす影響

概要

論文の詳細を見る
A study was conducted to investigate the effects of the analysis of heart rate variability on monitor screening tests. Twenty-two healthy females (average age 20.2) performed changes in position from the supine position to the sitting position on the floor, and their heart rate variability was analyzed. Heart rates and LF/HF, which are considered indicees of sympathetic nerve activity, significantly increased. On the other hand, HF/TP, which is thought to serve as an index of parasympathetic nerve activity, significantly decreased in the sitting position. Nevertheless, the heart rates of two subjects rose to 100 bpm during the sitting position, the HF/TP of five subjects in the sitting position became significantly higher than it had been in the supine position. By contrast, the HF/TP of one subject was not changed when they moved from a supine to a sitting position. In many of these special subjects, there tended to be a predominance of sympathetic nerve activity in the supine position. Characteristics of autonomic nervous activity, which did not appear in the heart rates, could be clarified through an analysis of heart rate variability. This suggests some potential for practical use in monitor screening tests.
2011-12-12