Assessment of Human Arm Bioelectrical Impedance using Microcontroller Based System



Bioelectrical impedance, Multi-frequency, Segmental bioelectrical impedance, Impedance analyser


Background and aims: In a wide field of research, the devices available based on long-established methods for measurement of bioelectrical impedance are large in size, expensive and low in accuracy. In this research, a system is developed for the measurement of the segmental bioelectrical impedance of the human body with high accuracy and small of a size.

Methods: Developed method uses multi-frequency to measure segmental bioelectrical impedance that follows four electrodes segmental measurement technique and is equipped with an impedance analyzer with a touch screen. Multi-frequency signals flow to the human body to measure bioelectrical impedance and also compare data measured by developing a device to standard device.

Results: Data have been collected through a developed device and is being analyzed. The outcomes show that the relative error of measured amplitude at multi-frequency is less than 1.50% while the absolute error of phase is up to 10. Comparison between two devices shows that the accuracy parameter of the developed device is more than 98% with the standard device. A compatible correlation (~ 0.9993) can be seen between both devices that they measure a nearly equal impedance of left and right arm at the same frequency.

Conclusions: Use of the developed device for the measurement of segmental bioelectrical impedance using multi-frequency, adequately enhances all trait of measurement as state-of-the-art facilities, small size and liberated to use due to simplicity.


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Author Biography

CHARU PAWAR, Dr. A P J Abdul Kalam Technical University

Research Scholar,

Deprtment of Electronics Engineering




How to Cite

PAWAR, C. (2020). Assessment of Human Arm Bioelectrical Impedance using Microcontroller Based System. International Journal of Integrated Engineering, 12(4), 172–181. Retrieved from