The Value of Bio-electrical Impedance Analysis in Irritable Bowel Syndrome

"Bio-electrical Impedance Analysis will be performed by trained personnel. BIA will be performed after fasting for at least 6 hours. Subjects should refrain from intensive physical activity the day be-fore the measurement. For women, measurements will be performed outside menstruating periods. Subjects will lay down on an examination couch with bare feet. Any jewelry will be removed.~Reactance and resistance will be obtained. Phase angle will be calculated according to the formula:~PhA (°) = (reactance/ resistance° x (180°/π). Body composition, including muscle mass and percentage body fat will be calculated."