“…People frequently lay involuntarily on the ground for an extended period of time after falling, developing other complications not directly related to the fall. This is known in the medical community as long lie (Bisson, Peterson, & Finlayson, 2015;Tinetti, Liu, & Claus, 1993). The Personal emergency response system (PERS) is a signaling device that was developed in the '80s and has achieved good acceptance in home healthcare community to help patients get immediate help.…”