Healthy Lifestyle
Conditions
Keywords
Chatbot, older adults
Brief summary
The purpose of this study is to evaluate the acceptability and preliminary effectiveness of a smartphone-delivered AI-based chatbot in promoting healthy dietary behavior and physical activity participation among older adults.
Detailed description
The purpose of this study is to evaluate the preliminary effectiveness of a smartphone-delivered AI-based chatbot in promoting healthy dietary behavior and physical activity participation among older adults. It is a preliminary study with two arms.
Interventions
OTHERA chatbot-based intervention
A smartphone-delivered AI-based chatbot program designed to provide personalized physical activity and dietary recommendations
Sponsors
The Hong Kong Polytechnic University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* aged 65 or above. * are community-dwelling. * are proficient in Mandarin. * have an Internet connection. * have at least one instant messaging app on the smartphone or agree to download one.
Exclusion criteria
* have any neurocognitive disorders. * are unable to engage in moderate-intensity level of physical activity due to a preexisting medical condition. * live with another participant who will participate in this study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The acceptance of the chatbot among older adults, as measured by a 14-item simplified version of the Senior Technology Acceptance Model questionnaire | End of study (2 months) | The 14-item questionnaire uses a 10-point Likert scale, ranging from 0 (strongly disagree, very poor, very uneasy, and very unsatisfied) to 10 (strongly agree, very good, very easy, and very satisfied) |
| The Usability of the chatbot, as measured by the System Usability Scale | End of study (2 months) | The System Usability Scale (SUS) is a 10-item Likert scale questionnaire. The result of this survey is called SUS score, which ranges from 0 to 100 and provides information about overall customer satisfaction and usability. A higher score indicates better usability, while a lower score may suggest usability issues. |
| The user experience, as measured by 10 open-ended questions | End of study (2 months) | A qualitative interview will be provided to the participants for asking their experience in using chatbot. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change of dietary behavior, as measured by the intake of fruits and vegetables over the last seven days | Baseline, end of study (2 months) | We will ask them the amount of fruit and vegetable intake at baseline and end of study. |
| Change of walking, as measured by the Community Health Activities Model Program for Seniors questionnaire | Baseline, end of study (2 months) | The Community Health Activities Model Program for Seniors questionnaires (CHAMPS-Q) measures weekly frequency and duration of walking |
| Change of total activity and moderate and more vigorous physical activity variables, as measured by the CHAMPS-Q | Baseline, end of study (2 months) | The CHAMPS-Q measures weekly frequency and duration of a variety of lifestyle physical activities |
| Change of quality of life, as measured by the Hong Kong Quality of Life for Older Persons Scale | Baseline, end of study (2 months) | The Hong Kong Quality of Life for Older Persons Scale (HKQoLOCP) comprises a total of 21 items that can be categorized into different domains: subjective well-being, consisting of 4 items; health, comprising 5 items; interpersonal relationships, including 6 items; achievement-recognition, with 4 items; and finance and living conditions (1 item each) |
Countries
Hong Kong
Contacts
PRINCIPAL_INVESTIGATORArkers Wong, PhD
The Hong Kong Polytechnic University
Outcome results
None listed