About this trial
This study aims to explore the feasibility and preliminary effectiveness of a mobile phone-based intervention among elderly individuals with chronic diseases.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥60 years and diagnosed with at least one chronic disease
Owns a smartphone and is proficient in using WeChat
Daily sedentary time ≥6 hours
Disqualifiers
recent surgeries, injuries, or other conditions that would prevent simple physical activity
hearing, vision, or physical disabilities
Trial design
Parallel
Treatments tested in this trial
Mobile Exercise Support
BehavioralParticipants receive three months of personalized support via WeChat, including tailored exercise recommendations, motivational messages, and educational content.
Self-help physical activity booklet
BehavioralParticipants receive a self-help booklet to promote physical activity among the elderly. The booklet will include guidelines for safe and effective exercises, tips for staying motivated, and information on the health benefits of regular physical activity.
Treatment groups
Trial outcomes
Primary outcomes
Time spent in sedentary behavior
The time spent sedentary behavior (min/week) in the last 7 days
Acceptability of the Mobile Phone-Based Intervention
Acceptability will be assessed using a series of 4 items from previous studies on mobile physical activity interventions. Participants will rate each statement on a 5-point Likert scale, ranging from 1 (strongly disagree) to 5 (strongly agree). The statements will cover aspects such as ease of use, personal relevance, clarity of information, and overall satisfaction with the intervention.
Perceived Usefulness of the Mobile Phone-Based Intervention
Perceived usefulness will be assessed using 5 items from previous studies on online physical activity interventions. Participants will rate each question on a 5-point Likert scale, ranging from 1 (not at all useful) to 5 (very useful). The questions will explore how useful participants found the intervention in helping them to (1) increase confidence in engaging in regular physical activity, (2) overcome barriers to physical activity, (3) increase support for participating in physical activity, (4) plan for physical activity, and (5) stay motivated to engage in physical activity.
Secondary outcomes
Time spent in zero-time exercise
The time spent physical activity while seated and standing (min/week) in the last 7 days
Exercise self-efficacy
This outcome measure evaluates participants' confidence in their ability to engage in regular physical activity (self-efficacy). Participants will rate their confidence on a single-item scale ranging from 1 to 10, with higher scores indicating greater self-efficacy.
Anxiety and depression
Anxiety and depression levels will be assessed using the Patient Health Questionnaire-4 (PHQ-4), a validated tool comprising two items for anxiety and two items for depression. The PHQ-4 score ranges from 0 to 12, with higher scores indicating greater severity of anxiety and depression symptoms.
Perceived subjective happiness
This outcome measure assesses participants' subjective happiness using a Self-Reported Happiness scale. Participants will rate their happiness on a single-item scale ranging from 1 (not at all happy) to 5 (extremely happy), with higher scores indicating greater perceived happiness.
Sponsors and contacts
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