Table 3.

Synthesis of the main characteristics of biopotentials and used electrodes.

	Electroencephalography (EEG)	Electrocardiography (ECG)	Electromyography (Surface EMG)
Main applications	Sleep monitoring; diagnosis of neurological diseases	Assessment of heart rate variability; cardiovascular disease monitoring; cardiac rehabilitation monitoring	Movement tracking; telerehabilitation; prostheses control
Textile technologies reported in the literature	Knitting, printing	Knitting, printing, coating	Knitting, printing
Issues	Skin-electrode contact impedance affected by the presence of a hairy scalp	Number of achievable leads; motion artifacts	Motion artifacts; variability in skin-electrode contact impedance