Correlates of habitual physical activity in chronic haemodialysis patients.Prolonged total food deprivation in non-obese adults is rare, and few studies have documented body composition changes in this setting.Development and validation of bioimpedance analysis prediction equations for dry weight in hemodialysis patients.Bioelectric impedance predicts total body water, blood pressure, and heart rate during hemodialysis in children and adolescents.Hypoalbuminemia is also a marker of fluid excess determined by bioelectrical impedance parameters in dialysis patients.Evaluation of a foot-to-foot impedance meter measuring extracellular fluid volume in addition to fat-free mass and fat tissue mass.The influence of low dialysate sodium and glucose concentration on volume distributions in body compartments after haemodialysis: a bioimpedance analysis study.Body fluid volumes measurements by impedance: A review of bioimpedance spectroscopy (BIS) and bioimpedance analysis (BIA) methods.The intradialytical shifts between extra- and intracellular spaces might be responsible for the difference in the two values. The relationship between the change in calculated body water (x) and the volume of ultrafiltratum (y) is: y = -0.5590 + 0.5864x (r = 0.4898 p < 0.05), bioimpedance in our study overestimated the fluid loss by 55%. Total body water calculated by bioimpedance analysis (BIA) decreased from 38.47 +/- 8.567 litres (56.07%) to 35.06 +/- 8.045 significantly (p < 0.001), and the reduction of extracellular water proved to be also significant. An inverse correlation was found between the changes in body weight (x) and resistance at 50 kHz (y): y = 8.4830-2.1850x (r = 0.7167, p < 0.01). After dialysis we found significantly higher impedance values on each measured frequency (1, 5, 10, 50, 100 kHz) (p < 0.001). Measurements were done on 19 patients (mean age 36.7 years) prior to and after haemodialysis. The aim of this study was to investigate the effect of changes in body fluid related to haemodialysis on measured bioimpedance parameters, to determine correlation between bioimpedance data and the volume of ultrafiltratum, and to collect data on alterations of body fluids resulting from a treatment. N2 - Bioimpedance is a simple non-invasive method of assessing body composition.

Bioimpedance is a simple non-invasive method of assessing body composition.

The body fluid compartments change