... down, lying to sitting, level walking, ascending stairs and descending stairs However, in sitting, standing, and lying down detection, instead of detecting static postures, we detect stand-sit/sit-stand, ... describes the detection procedure of ADL in time frequency domain Fall detection (post impact detection) including implementation of fall notification system and pre-impact fall detection using angular ... thigh in detecting sitting, standing, and lying static activities The dc response of the radial sternum accelerometer was used to distinguish sitting/standing posture from lying posture and that of...