Figure 3.

Measurement of ischial pressure using a smart chair. User experience/user interface (UX/UI) display image for ischial pressure measurement (A and B). Initial unbalanced pressure (A) was 666.38 to 704.09, a difference of 37.71, followed by a 1 mm lower left seat plate for balancing, and improved pressure changes (B) during 1-h balanced seating (648.13 vs 672.50, a difference of 24.37). (C) Diagram of the smart chair using adjustable seat plate equipped with pressure sensor. Only left seat plate is adjustable height for balanced pressure distribution.