FeetBeat: A Flexible Iontronic Sensing Wearable Detects Pedal Pulses and Muscular Activities

Human feet have long been considered in close association with whole-body health, from which abundant cardiovascular and skeletomuscular information can be extracted. In this study, we aim to develop the world's first foot-based wearable system that can detect both pedal pulses and muscular activities, referred to as FeetBeat.Utilizing the flexible iontronic sensing technology, we have constructed and characterized a five-unit sensing array for...