An analysis on EEG power spectrum under pressure of girdle

Abstract

Purpose – The pressure exerted on the body by clothes is one important factor affecting the comfort of clothing, it is an effective method to evaluate pressure comfort by physiology and psychology. The purpose of this paper is to measure, electroencephalography (EEG), an index of brain activity in order to examine the effect on brain activity conditions caused by oppression exerted by clothing on the body. Design/methodology/approach – EEG power spectrum analysis was conduct to verify the electrophysiological characteristic of brain caused by pressure on the body by girdle. Findings – Experimental results showed that the intensity of α waves in the pressure condition is decreased compared to the non-pressure condition, and the somatosensory activated by pressure of girdle mainly in occipital, frontal and parietal region of brain. Originality/value – It was clarified that it is impossible to evaluate the clothes pressure by physiological technique of EEG, this study has enriched methods of evaluation pressure comfort.

Analysis of Stress and Strain to Determine the Pressure Changes in Tight-Fitting Garment

“…By substituting equation (5) of fabric stress in equation 7, equation (8) of the strain value as a function prediction model of its diameter of the cylindrical model, pressure, fabric thickness and mechanical characteristics of stretch fabric (leading coefficients a 1 , a 2 and a 3 ) is obtained. pressure and diameter of the cylindrical model obtained by equation (8) was conducted. The results show that the fabric samples 407, 702, 703, and 707 owing to their stretch fabric properties possessed high stress values that were applicable for producing tight-fitting garment.…”

“…Concerning the tight-fitting garment, is generally applied to develop patterns, and the construction of patterns are optimized from the perspective of the stretch ability of elastomeric fabrics [5,6] and the influential of pattern construction that affects production of tight-fitting garment is pressure garment [2,7,8]. However, the exact pressure garment required for effective treatment has never been scientifically established [9][10][11][12] unless in the case of the pressure comfortable for tightfitting garment, Makabe [13] found that the human body will have uncomfortable perception when the pressure is >4.00-5.33 kPa.…”

Clothing pressure alters brain wave activity in the occipital and parietal lobes

“…In the present study [12, 13] we examined α wav intensity in various regions of the brain stimulated by different clothing pressures along the waist to determine their utility as an alternative measurement of clothing pressure discomfort. Our work lays the foundation for relevant research on objective clothing pressure measurements and contributes to the physio-psychology study on the body’s response to clothing pressure stimulus.…”

A potential new fabric evaluation approach by capturing brain perception under fabric contact pressure

“…Since the beginning of the 20th century, thousands of textile scholars have been trying to make full use of various psychological evaluation methods [1][2][3][4] (also named subjective evaluation methods); physical evaluation methods, 5 which combine fabric tactile perception with textile pressure; psychophysical evaluation methods 6 by connecting psychological touch sensations with the physical mechanical properties of textiles; and physiological evaluation methods, 7 such as the EEG (Electroencephalogram), [8][9][10][11][12] ERP (Event Related Potential), 13,14 HRV (Heart Rate Variability), 15 ECG (Electrocardiogram), 16 EMG (Electromyography), 17,18 etc. These four mainstream evaluation systems quantitatively describe the contact pressure comfort from the fabric.…”