Modelingof the Effect of Skin Temperature on Hydration Assessment

Bio-electrical impedance analysis (BIA) has high potentials to be used in assessing body composition due to it being non-invasive, easy to use, safe, and low-cost. To utilize its potentials, the effect of several parameters, such as electrode design, temperature, sweat, and body movement, must be studied to design a sensor that can be used in the field rather than in clinical settings. In this paper, a human skin model is developed and simulated to analyze the BIA method. The paper focused on studying the effect of temperature on the measured resistance and capacitance in relation to the hydration levels. The work presented can be used, in addition to future analysis, as a guideline to design a hydration assessment system.