Global Journal of Physical Medicine and Rehabilitation

The system developed by Särelä et al. (2003) [6] consists mainly in a wearable device and a base station, installed at the user ́s home, to monitor the user ́s movements. The wearable device collects activity data and sends it to the base station, which can synchronize the data with a dedicated server through a wired public telephone line or send alert messages to a caregiver. The target population of this system is the elderly people. The system has the advantage of making the connection with the patient and the caregiver, but has the drawback of not collecting more physical activity data, eg., the step count.