Patent ID: 8753275

Claim:
A system for assessing and improving adherence of a user in wearing at least one of footwear, braces, or orthotics, or using walking-aid devices, the system comprising: a sensor configured to be worn by said user, said sensor comprising one or more accelerometers; and one or more tagged devices identified by one or more radio-frequency tags and comprising one or more accelerometers; wherein said system is configured to: detect whether said user is wearing said sensor at least partly in response to measurements of respiration fluctuation of said user using said one or more accelerometers of the sensor; and detect that said user is not wearing said one or more tagged devices at least partly by identifying instants or time periods when: said one or more tagged devices are not detected by said sensor to be within a predefined distance of said sensor and measurements from said sensor indicate that said user undergoes a pre-specified foot-loading condition; or measurements from said sensor indicate that said user is walking, said one or more tagged devices are detected by said sensor to be within said predefined distance of said sensor, and measurements from said one or more accelerometers of said one or more tagged devices do not indicate that said user is walking.