Analysis of activities of daily living in elderly people living alone: single-subject feasibility study.

We have developed an automatic remote system for use in monitoring the health of independent elderly people living in conventional homes. In this study, a monitoring system was installed and evaluated in the house of one subject to test the feasibility of determining activities from sensor outputs. Over a period of 6 months, it was found that total counts from all sensor outputs matched the concurrently acquired data on physical activity obtained from a pedometer. Performance of each basic activity of daily living could be confirmed from the sensor output records.