Detecting the Intention of Sit-to-Stand by Analyzing Reaction Forces on the Foot with Pareto Optimum.

This study introduces a novel method for detecting a user's sit-to-stand (STS) intention, focusing on minimizing sensor usage for ease of application in everyday settings. Our approach involves applying an external stimulus to the user's toes when they are likely to stand and analyzing the resulting reaction forces on the foot. In the subject experiments, we optimized thresholds using the Pareto optimum to differentiate STS motions from other similar movements, targeting both correct detection and an earlier detection timing before the user's buttocks leave the seat.