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A RCT Evaluating a Chatbot in Increasing Physical Activity Among Older Adults

A Randomized Controlled Trial Evaluating a Trans-Theoretical-Model-based Online Intervention Delivered by Fully-automated Chatbot in Increasing Physical Activity Among Inactive Community-dwelling People Aged ≥65 Years

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06641492
Enrollment
278
Registered
2024-10-15
Start date
2024-11-01
Completion date
2025-12-31
Last updated
2024-10-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Physical Inactivity

Brief summary

This study will compare the efficacy of a Chatbot-delivered stage of changes (SOC)-tailored online intervention (intervention group) versus a Chatbot-delivered non-SOC-tailored online intervention in increasing the prevalence of meeting WHO recommended physical activity level six months after completion of the intervention among inactive community-dwelling individuals aged ≥65 yeas. In the intervention group, the Chatbot will assess participants' physical activity level and SOC regarding PA and automatically deliver interventions tailor to their SOC every week for 12 weeks. In the control group, the Chatbot will not assess participants' SOC. It will assess participants' physical activity level and provides a standard intervention covering general information about physical activity for older adults, which is not tailoring to participants'SOC every week for 12 weeks. All participants will be followed up after completion of the interventions (T1) and six months after T1 (T2).

Interventions

BEHAVIORALChatbot-delivered interventions tailored to one's stage of changes

The Chatbot will assess participants' physical activity level and stage of changes regarding physical activity and automatically deliver interventions tailor to their stage of changes every week for 12 weeks. The Chatbot will address questions related to physical activity raised by the participants.

The Chatbot will not assess participants' stage of changes. It will assess participants' physical activity level and provides a standard intervention covering general information about physical activity for older adults, which is not tailoring to participants' stage of changes every week for 12 weeks. The Chatbot will address questions related to physical activity raised by the participants.

Sponsors

Chinese University of Hong Kong
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Aged ≥65 years, * Having a Hong Kong ID, * Chinese speaking, * Not meet the WHO recommended level of MVPA * Willing to be followed by telephone at 3 and 9 months, * Having a smartphone * Able to send and read text/voice message via smartphone. * Willing to wear an accelerometer for a week at T0, T1 and T2.

Exclusion criteria

* Blindness or deafness, * Having been diagnosed with major psychiatric illness (schizophrenia or bipolar disorder) or dementia, * Score ≥1 in the Chinese version of the Physical Activity Readiness Questionnaire (PAR-Q) * Score ≤16 in the validated telephone version of the Cantonese Mini-mental State Examination (T-CMMSE)

Design outcomes

Primary

MeasureTime frameDescription
Meeting WHO recommended level of physical activity9 monthsPrevalence of meeting WHO recommended level of physical activity (at least 150 minutes moderate-intensity aerobic physical activity every week) at T1 (after completion of intervention) and T2 (6 months after T1). Physical activity will be measured by self-reported data and using an accelerometer.

Countries

Hong Kong

Contacts

Primary ContactZixin Wang, Dr.
wangzx@cuhk.edu.hk+852 22528740

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026