fig5

Figure 5. Motion artifact sensing based on the IBTS. (A) Pulse waveforms recorded from the wrist of a 25-year-old male volunteer at rest and after exercise; (B) HR-related parameters of a 25-year-old male volunteer at rest; (C) HR-related parameters of a 25-year-old male volunteer after exercise; (D) The IBTS was attached to the wrist to perform pulse wave monitoring under 90-degree wrist rotation (Scale bar: 3 cm); (E) Radial artery pulse wave monitoring during exceeding 90-degree wrist rotation; (F) The IBTS was attached to the wrist to perform pulse wave monitoring under 30-degree arm swing (Scale bar: 3 cm); (G) Radial artery pulse wave monitoring during 30-degree arm swing; (H) Pulse wave measured from the fingertip while the volunteer was using the mouse (Scale bar: 3 cm); (I) Pulse wave measured from the fingertip while the volunteer was using the keyboard (Scale bar: 3 cm). IBTS: Island-bridge microstructured triboelectric sensor; HR: heart rate.