Gender Differences in Body-Sway Factors of Center of Foot Pressure in a Static Upright Posture and under the Influence of Alcohol Intake
Open Access
- 1 January 2004
- journal article
- Published by Japan Society of Physiological Anthropology in Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science
- Vol. 23 (4), 111-118
- https://doi.org/10.2114/jpa.23.111
Abstract
This study aimed to examine gender differences in 4 body-sway factors of the center of foot pressure (CFP) during a static upright posture and the influence of alcohol intake on them. Four body-sway factors were interpreted in previous studies using factor analysis (the principal factor method and oblique solution by promax-rotation) on 220 healthy young males and females as follows; unit time sway, front-back sway, left-right sway and high frequency band power. The CFP measurement for 1 min was carried out twice with 1 min rest. The measurements of blood pressure, heart rate, whole body reaction time, standing on one leg with eyes closed, and CFP were carried out before and after the alcohol intake using 11 healthy young males and females. The measurement device used was an Anima's stabilometer G5500. The data sampling frequency was 20 Hz. Reliability of 4 body-sway factors was very high. Significant gender differences were found in the left-right sway and the high frequency band power factors, but the influence on body-sway is, as a whole, can be disregarded. These four sway factors can determine the influence of alcohol intake as efficient as 32 sway parameters.Keywords
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