Sustainability of Physical-Activity Improvements from GenAI-MI Chatbots

Determine whether differences in daily step counts observed between GenAI-MI chatbot conditions and a rule-based chatbot condition are sustained beyond the short observation period.

Background

The review summarizes a 10-day physical-activity intervention in which daily step counts generally increased for participants using GenAI-MI chatbots but decreased for those using a rule-based chatbot. Because the observation period was short, the persistence of these differences over longer periods remains unresolved. Establishing sustainability is important for determining whether short-term improvements associated with GenAI-MI chatbots translate into durable behavioral change.

References

However, the observation period was short, making it unclear whether these differences would be sustained.

— Generative Artificial Intelligence Chatbots for Motivational Interviewing: A Scoping Review From System Design to Intervention Outcomes  (2609.20902 - Hu et al., 17 Sep 2026) in Results, subsection “Intervention Outcomes”