The influence of posture change on measurements of relative body fat in the bioimpedance analysis method

Journal of Physiological Anthropology and Applied Human Science
Shinichi DemuraYoshinori Nagasawa

Abstract

The purpose of this study was to clarify the influence of posture change on relative body fat in the bioelectrical impedance analysis (BIA) method. The subjects were 30 Japanese healthy young adult males (age: 19.8 +/- 1.4 years, height: 172.3 +/- 5.8 cm, weight: 67.1 +/- 8.2 kg). We used devices with different body segment inductions, between the hand and foot (H-F BIA) and between hands (H-H BIA), and set four measurement conditions differing in posture (supine or sitting), during rest and measurement. The reliabilities of %BF in the H-H and H-F BIA methods were very high (r = 0.995, 0.966), and the relationship in %BF between the UW method and each BIA method was mid-range (r = 0.767, 0.709). Although there were no differences in %BF among different measurement postures in the H-F BIA method, %BF in the H-H BIA method increased significantly when the posture was changed just before measurement. This indicated that it is necessary to pay attention to the posture change just before measurement in the H-H BIA method.

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Citations

Nov 26, 2008·International Journal of Obesity : Journal of the International Association for the Study of Obesity·E NagyUNKNOWN HELENA Study Group
Oct 8, 2013·The Journal of Pediatrics·Magdalena Cuenca-GarcíaUNKNOWN HELENA Study Group
Mar 29, 2006·Journal of Renal Nutrition : the Official Journal of the Council on Renal Nutrition of the National Kidney Foundation·Magdalena JankowskaBolesław Rutkowski

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