Study on the Effect of the Prone Position on Brain Function. Analysis of Wave Frequency on the Electroencephalogram.:ANALYSIS OF WAVE FREQUENCY ON THE ELECTROENCEPHALOGRAM

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The purpose of this study was to verify the effect of the prone position in the management of body positioning.<BR>First experiment was a basic study on difference in physiological response between the prone position and the supine position in 7 healthy female students. Two position patterns for each of these two positions : feet in contact with the bed and free of the bed were tested. Data were collected from all samples for the four different positions, and the retest procedure was applied. We selected the β-wave (13.030.0Hz) on the electroencephalogram (EEG) as the evaluation index and compared the change in wave power according to the position patterns. The greatest amplification in the β-wave area was obtained in the prone position with feet in contact with the bed, followed by the prone position with feet free from bed. There was no change in the supine position with feet free from bed.<BR>Nest experiment, we focused on the supine position and the prone position feet free of the bed and compared elderly and youth subjects. We selected the β-wave and the α-wave (8.013.0Hz) on the EEG as the EEG as the evaluation index. The result were as follow : in both the youth and the elderly there was greater amplification of the α and β-waves in the prone position than in the supine position. The prone position may activate brain function in the elderly.
北関東医学会の論文