Phillips SM, Bandini LG, Compton DV, Naumova EN, Must A: A longitudinal comparison of body composition by total body water
and bioelectrical impedance in adolescent girls.
Body composition changes after SCI include muscle wasting, fat accumulation, a rapid loss of bone mineral within the first eighteen months of injury, and a reduction in total body water
due to the decrease in muscle mass (9).
Determinations of water intake, total body water
, extracellular fluid, plasma volume and blood volume
The day before the start of the race and after every stage, within one hour after arrival at the finish line, every participant underwent anthropometric measurements, bioelectrical impedance analysis (BIA), and the collection of urinary samples in order to determine body mass (BM), skeletal muscle mass (SM), percent body fat (% BF), lean body mass (LBM), and percent total body water
Total body water
percentage for women declines from 54% to 46%;
Seasonal changes in total body water
extracellular fluid and blood volume in grazing reindeer.
Percentage of total body water
(% TBW) was calculated using the following equation:
There may be differences in the mineral and bacterial composition of the various tap, distilled, spring, and bottled water but unless these solutions contain solutes that are impermeable to the cell membrane, these apparent "differences" would not influence the distribution of total body water
Estimation of total body water
in pinnipeds using hydrogen-isotope dilution.
Total body water
(TBW) volume can by measured in humans by administering an oral dose of an isotope tracer, such as [sup.
The panel said that the diuretic effect "may be transient in nature" and that there is no convincing evidence that it leads to cumulative total body water
Professor Wendy Slutske, who polled 1,230 students at the University of Missouri-Columbia, said: "This finding makes biological sense because women tend to weigh less and have lower percentages of total body water