Influence of posture and frequency modes in total body water estimation using bioelectrical impedance spectroscopy in boys and adult males
MetadataShow full item record
The aim of the study was to examine differences in total body water (TBW) measured using single-frequency (SF) and multi-frequency (MF) modes of bioelectrical impedance spectroscopy (BIS) in children and adults measured in different postures using the deuterium ( 2 H) dilution technique as the reference. Twenty-three boys and 26 adult males underwent assessment of TBW using the dilution technique and BIS measured in supine and standing positions using two frequencies of the SF mode (50 kHz and 100 kHz) and the MF mode. While TBW estimated from the MF mode was comparable, extra-cellular fluid (ECF) and intra-cellular fluid (ICF) values differed significantly (p < 0.01) between the different postures in both groups. In addition, while estimated TBW in adult males using the MF mode was significantly (p < 0.01) greater than the result from the dilution technique, TBW estimated using the SF mode and prediction equation was significantly (p < 0.01) lower in boys. Measurement posture may not affect estimation of TBW in boys and adult males, however, body fluid shifts may still occur. In addition, technical factors, including selection of prediction equation, may be important when TBW is estimated from measured impedance. © 2014 by the authors; licensee MDPI, Basel, Switzerland.
Showing items related by title, author, creator and subject.
Wahlström, J.; Bergsten, E.; Trask, C.; Mathiassen, Svend; Jackson, J.; Forsman, M. (2016)© 2016 The Author. Objectives: The present study assessed full-shift trunk and upper arm postural exposure amplitudes, frequencies, and durations among Swedish airport baggage handlers and aimed to determine whether ...
Astfalck, Roslyn G (2009)The prevalence of low back pain (LBP) in the adolescent population is high, with rates approaching adult levels. It has previously been shown that those with LBP during adolescence are at greater risk of experiencing LBP ...
How consistent are lordosis, range of movement and lumbo-pelvic rhythm in people with and without back pain?Laird, R.; Kent, Peter; Keating, J. (2016)Background: Comparing movements/postures in people with and without lower back pain (LBP) may assist identifying LBP-specific dysfunction and its relationship to pain or activity limitation. This study compared the ...