About this trial
The purpose of this study is to develop a Smart mHealth Strategy that delivers behavior change techniques through wearable physical activity trackers and social media chatbots, including self-monitoring, real-time feedback and reminders, goal-setting, competition and rewards, social support, and health coaching. This study also aims to explore the effect of the Smart mHealth Strategy on the behavioral outcomes and psychological factors of physical activity, and physical and mental health. The study design is a three-stage randomized controlled trial. In each stage, 120 are recruited and randomly assigned to control and experimental groups. Participants are adults with insufficient physical activity and a sedentary lifestyle. The Smart mHealth Strategy uses smartwatches and self-developed chatbots. The constrained dialogue content is designed to finally deliver the six behavior change techniques. Data are collected in the pre-, mid-, and post-tests. The measurement includes self-administered questionnaires, Actigraphy GT9X, Inbody 270S, OMRON HEM-7130, and heart rate variability monitors.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
None
Disqualifiers
Individuals' health conditions may affect physical activity in daily living and the experiment, such as disability, serious health problems
There are unconventional life plans during the experiment, such as going abroad for vacation, pregnancy, and surgery.
Individuals have using experiences in any wearable physical activity trackers in the past six months ④ People who have ever had severe allergies to any wearable device ⑤ Professional athletes or student-athletes
Trial design
Parallel
Treatments tested in this trial
Wearable devices only
Behavioralself-monitoring
Wearable devices with the 1st behavior change technique
Behavioralreminder
Wearable devices with the 2nd behavior change technique
Behavioralsocial support
Wearable devices with the 3rd behavior change technique
BehavioralCompetition
Wearable devices with the 4th behavior change technique
BehavioralGoal-setting
Wearable devices with the 5th behavior change technique
Behavioralhealth coach
Wearable devices with all behavior change techniques
BehavioralSelf-monitoring, health coach, goal-setting, competition, social support, and reminder
Treatment groups
8
Treatment groupsSee each treatment group below.
Trial outcomes
Primary outcomes
Subjective physical activity
International Physical Activity Questionnaire (IPAQ-SF, MET-minute/week)
Objective physical activity
Actigraphy GT9X and GT3X (MET-minute/week)
Exercise Benefits/Barriers Scale-Concise (EBBS-C)
Higher score higher benefits and barriers
Exercise self-efficacy scale (EXSE)
Higher score higher self-efficacy
Secondary outcomes
body composition (Inbody)
Body mass index (BMI, kg/m\^2), skeletal muscle index (SMI, kg/m\^2), body fat percentage (%), body fat mass (kg), and fat-free mass (kg)
blood pressure
Systolic and diastolic blood pressure (mmHg)
heart rate variability
Total power (TP, 0-0.5 Hz), low-frequency power (LF, 0.04-0.15 Hz), high-frequency power (HF, 0.15-0.40 Hz), the ratio of low frequency to high frequency (LF/HF), and the standard deviation of all normal-to-normal intervals (SDNN)
Depression Anxiety Stress Scale (DASS)
Higher score worse mental health
Sponsors and contacts
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