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

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).

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Key information

Conditions

Physical Inactivity Behavior Sedentary Behavior

Age range

65 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Centre for Health Behaviours Research, the Chinese University of Hong Kong

Hong Kong, 666888

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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)

Treatment and study plan

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

Behavioral

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.

Chatbot-delivered standard interventions

Behavioral

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.

Primary outcomes

Meeting WHO recommended level of physical activity

Time frame: 9 months

Prevalence 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.

Study contacts

Contact information is provided by the study sponsor or research team.

Zixin Wang, Dr.

CONTACT

[email protected]

+852 22528740

Sponsors and collaborators

Lead sponsor

Chinese University of Hong Kong

Other

Registry information

Official study title

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

Important dates

Study start: 2024
Primary completion: 2025
Study completion: 2025
First posted: Oct 15, 2024
Registry last updated: Oct 15, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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