Progress toward universal interface technologies for telerehabilitation.

One of the overriding needs in the field of telerehabilitation is for user-centered interfaces that provide individuals with differing abilities with access to effective remote communication. This paper provides a foundation for developing and evaluating interfaces that move towards the aim of universal accessibility, and reports on progress for four types of interfaces: multimedia conferencing technologies involving persons with different roles and disabilities participating in goal-directed tasks; physical devices for therapy and assessment; communication/control for computer-assisted teletherapy; and an intelligent telerehabilitation assistant that supports the dynamic rehabilitative process.