How does BIA technology work?
Bioelectrical Impedance Analysis is a technique used for estimating body composition. All Tanita body composition monitors use advanced Bioelectrical Impedance Analysis technology. When you stand on a Tanita monitor, a very low, safe electrical signal is sent from four metal electrodes through your feet to your legs and abdomen to produce whole body composition measurements. In segmental models, the four hand-held electrodes will provide extra readings for each leg, arm and abdominal area. The electrical signal passes quickly through water that present in hydrated muscle tissue but meets resistance when it hits fat tissue. This resistance, known as impedance, is measured and input into scientifically validated Tanita equations to calculate body composition measurements in under 20 seconds.
Multi frequency BIA technology
Tanita Multi-Frequency Monitors are able to measure bioelectrical impenedance analysis at three, five or six different frequencies. The additional frequencies provide an exceptional level of accuracy compared to single and dual frequency monitors. The lower frequencies measure the impedance external to the cell membrane. The higher frequencies are able to penetrate the cell membrane. By measuring impedance at both the lower and higher frequencies it is possible to estimate extra-cellular water (ECW), intracellular water (ICW) and Total Body Water. This information is essential for providing the health status of a person and indicating health risks such as severe dehydration or oedema.
Single frequency BIA technology
Tanita body composition monitors with Single frequency Bio-electrical Impedance Analysis Technology use a single frequency to capture body composition data.