Comparison of bio-impedance changes and EMG activity during daily events

Wideband low-power current-feedback instrumentation amplifiers for bioelectrical signals

“…Needless to say, the great variety of biological parameters to be processed by medical monitoring systems entails a wide range of physiological signals to be acquired by biomedical electronic detection devices. Although these physiological signals have low voltages levels in common, their frequency values can range from few Hz to tens of MHz [2]− [5]. Therefore, the biomedical readout circuitry must be able to extract and process signals of frequencies up to the MHz range while still featuring low-power consumption in order to accomplish the requirements of future remote portable healthcare systems.…”