Computer Agents to Promote Walking in the Elderly
This proposal is a randomized control trial using innovative interactive health technologies to promote and sustain walking behavior among elderly patients. The technology uses an Embodied Conversational Agent (ECA), a computer character that simulates face-to-face conversation. The trial will be block randomized by literacy status and include an intensive two-month, daily contact intervention via a Tablet PC ECA in the subject's home, an automated telephone program, and then an in-clinic, kiosk-based ECA for an additional 10 months, to promote maintenance of walking behavior. The study will occur in 2 phases, a pilot phase in which 20 subjects will be enrolled for the purpose of pre- testing the intervention and all data collection instruments, and a main study phase in which an additional 264 subjects will be enrolled.
|Study Design:||Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
|Official Title:||Computer Agents to Promote Walking in Older Adults With Low Health Literacy|
- Increase in physical activity (measured as step counts from pedometer) [ Time Frame: 1 year ] [ Designated as safety issue: No ]
|Study Start Date:||October 2008|
|Study Completion Date:||September 2011|
|Primary Completion Date:||September 2011 (Final data collection date for primary outcome measure)|
No Intervention: Control
Subjects are given a pedometer and step count log in which to record their daily step counts for 1 year.
Active Comparator: ECA Interaction
Subjects are given pedometers and step count logs in which to record their daily steps for 1 year. Subjects are also given a tablet computer and instructed to interact with the ECA (Embodied Conversational Agent) "Tanya" every day for 2 months.
Behavioral: ECA Interaction
The technology uses a computer character (Embodied Conversational Agent (ECA)) that simulates face-to-face conversation. The ECA talks to the patient and the patient responds by tapping a touch-screen.