impedance

Pulse wave velocity was measured by impedance cardiography, while carotid intima-media thickness and carotid artery distensibility were measured by carotid ultrasonography.

An additional step could include estimating visceral fat through a bioelectrical impedance weighing scale, which passes a small electrical current through the body to estimate fat quantities; it’s cheaper but admittedly less precise than full-body imaging scans.

Thanks to excellent impedance matching between stages, the amplifiers demonstrated outstanding performance, as Prof. Okada highlights: "The proposed power amplifiers achieved a gain higher than 20 dB from 237 to 267 GHz, with a sharp cut-off frequency to suppress out-of-band undesired signals."

"Because phase angle can be measured even by impedance analyzer for home use, such as weighing scales with body composition analyzer, phase angle may be the way to monitor muscular health easily and quickly. If possible, segment-level phase angle measurement can be conducted even by impedance analyzer for home use," says Prof. Akagi.

The graphene microelectrodes exhibit low impedance and high charge injection, essential attributes for flexible and efficient neural interfaces.