This proposed longitudinal study will examine the influences of neighborhood factors and momentary contextual and psychosocial factors, which the investigators call acute precipitants, on physical activity (PA) adoption and maintenance among Pacific Islanders (PcIs). Specifically, the investigators will enroll 150 sedentary PcI adults and examine their PA adoption and maintenance based on measurements at five separate weeks during a 20-month period. The investigators will use MotionSense, an innovative and proven mHealth kit developed by team members, Global Positioning System (GPS), and ecological momentary assessment to measure PA and its key determinants. Our central hypotheses are that individual and neighborhood factors are associated with PA adoption and maintenance among previously sedentary PcIs, and that psychosocial precipitants mediate these associations.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* age 18 years of age or older (because children and adolescents are different from adults in terms of PA level, PA mechanisms, psychosocial factors, and measurement accuracy);
* being Tongan American (TA); being currently sedentary which is defined as self-reported PA less than 3 days/week for less than 20 minutes/day over the last 6 month;
* no underlying functional impairment;
* valid home address;
* functioning telephone number;
* can speak, read, and write in English;
* marginal or adequate health literacy.
Exclusion Criteria:
* currently in a physical activity program or participated in a physical activity program in the past year;
* have a pacemaker or implanted cardiac device;
* have any dietary/exercise restrictions or limitations, and/or co-morbid conditions that would have precluded them from fully participating in the study;
* physically unable to wear equipment and provide a good reading or use a smartphone;
* pregnancy or lactation;
* with active diagnoses of major depression, cognitive impairment (of any etiology), or any functional impairment; or any uncontrolled medical or psychiatric problem.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Physical activity adoption measure 1
Timeframe: 5 separate weeks' data in 20 months for each participant
2
Physical activity maintenance measure 1
Timeframe: 5 separate weeks' data in 20 months for each participant
3
Physical activity adoption measure 2
Timeframe: 5 separate weeks' data in 20 months for each participant
4
Physical activity maintenance measure 2
Timeframe: 5 separate weeks' data in 20 months for each participant