Physical and Biological Study of Several Materials in Prostration

Prostration is the best position to discharge electrostatic fields from the body. This study aimed to investigate the magnetic and electrical properties of three materials: soil, paperboard, and cloth, and to study the brain activity further when prostrating on these three different materials.

This is a cross-sectional study.The participants included 10 (4 women and 6 men) healthy individuals aged 20-40, who voluntarily participated in this project.In the first part, the physical examination of different materials was done. The vibrating sample magnetometer was used to check the magnetic permeability, and a two-point electrical conductivity measuring device was used to check the electrical conductivity of the soil, paperboard, and cloth samples. In the second part of the study, brain waves of ten healthy peoplein the sitting position, prostration on the soil, paperboard, and carpet with the same conditions was recorded. The relative strengths of the frequency bands were investigated. The significance level was considered after calculating the false discovery rate to delete the channels and bands effect interface.In the present study, all the ethical considerations were observed and the authors reported no conflict of interests.

The results of the first part showed that paperboard had more magnetic permeability than cloth and cloth had more magnetic permeability compared to soil and had less electrical conductivity as well. In the second part, the results showed that paperboard and soil caused a significant increase in the relative power of the alpha 1 band in the frontal and central areas compared to the sitting position, while there was no significant difference in prostration on the carpet. Prostration on the carpet significantly increased the relative power of the gamma band 1 compared to sitting, while prostration on the soil, especially paperboard, showed this difference to a lesser extent.

Based on the findings, it can be stated thatprostration on paperboard increased, and prostration on carpet diminished the effects of prostration on the soil.