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

NCT06641492 | Not Yet Recruiting

• 1 other identifier: 20210531
• Study Type: interventional
• Target: 278
• Locations: 1 country
• Sites: 1

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).

Conditions

Physical Inactivity

Outcome Measures

Primary Outcomes (1)

• Meeting WHO recommended level of physical activity

  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.

  9 months

Study Arms (2)

Intervention

EXPERIMENTAL

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.

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

Control

ACTIVE COMPARATOR

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.

Behavioral: Chatbot-delivered standard interventions

Interventions

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.

Intervention

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.

Control

Eligibility Criteria

• Age: 65 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Older Adult (65+)

You may qualify if:

• 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.

You may not qualify if:

• 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)

Sponsors & Collaborators

• Chinese University of Hong Kong: lead

Study Sites (1)

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

Hong Kong, 666888, Hong Kong

Location

Related Publications (1)

• Liang X, Sun F, Zhang Q, Fang Y, Yu FY, Ye D, Zhang B, Liao Q, Mo PK, Wang Z. Chatbot-Delivered Stage of Change-Tailored Web-Based Intervention to Promote Physical Activity Among Inactive Community-Dwelling People Aged 65 years or More: Protocol for a Randomized Controlled Trial. JMIR Res Protoc. 2025 Jun 20;14:e68796. doi: 10.2196/68796.

  PMID: 40540737 DERIVED

MeSH Terms

Conditions

Sedentary Behavior

Condition Hierarchy (Ancestors)

Behavior

Study Officials

• Zixin Wang, Dr.

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

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Zixin Wang, Dr.

CONTACT

+852 22528740; wangzx@cuhk.edu.hk

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: HEALTH SERVICES RESEARCH
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: October 12, 2024
• First Posted: October 15, 2024
• Study Start: November 1, 2024
• Primary Completion: December 31, 2025
• Study Completion: December 31, 2025
• Last Updated: October 15, 2024

Record last verified: 2024-10

Data Sharing

• IPD Sharing: Will not share

Locations

HK (1)