Table 1.

Functional details of the Online Kayoinoba Application

Function	Contents
Support of outdoor activity	Neighborhood spots registered in the application will be displayed, and when users select their favorite place, the route, time required, and distance traveled to that destination will be displayed. If they reach their destination, points are earned. The system automatically creates a recommended walking course within a walkable distance from the current location, and users can choose their favorite walking course and earn points if they follow the course. There is also a function that allows users to register their favorite walking courses and share the recommended walking courses with other users.
Home exercise	Delivery of videos of local physical exercises in each city, town and village. Delivery of videos of dementia prevention program that combine exercise and cognitive tasks.
Health check-up	Home Activity Guide 2020: Browse guidelines for exercises and activities that can be practiced at home according to physical and cognitive functions. Use of the Kihon Checklist.
Cognitive Training	Provide cognitive training included visuospatial memory, puzzle, calculation, n-back task to improve cognitive function.
Communication	Chat function for communication among users and groups. Bulletin board function for event information, etc. (To be implemented by the end of 2021)
Information of Kayoinoba (Community place in the real world.)	Displays location information, facility information, and activities of Kayoinoba to go nationwide.
Dietary control	Register meals and view ratings. Allows checking the balance of users’ diet.
Self-management	It is equipped with functions to help users manage themselves by visualizing and ranking the usage of each application function, including the amount of activity including the number of steps taken and the frequency of home exercise.