Obesity
Conditions
Brief summary
The aim of the trial is to study the effect of a mobile application-based lifestyle change program on body weight loss in adult subjects with obesity. The main focus is to motivate and support beneficial lifestyle changes targeting long-term weight management. This study comprises two randomly assigned study arms: mobile application-based lifestyle change program and waiting-list control. The mobile application-based lifestyle change program consists of twice a week content for the first 6 months, continuing with less frequent contents for the following 6 months (the length of intervention 12 months). The waiting-list control group will receive mobile application-based lifestyle change program after 6 months followed by intervention for 12 months. The main aim is to demonstrate that the users of mobile application-based lifestyle change program lose more weight than controls at 6 month timepoint and weight loss is maintained for 18 months (6 months after the end of mobile application-based lifestyle change program use). Weight is measured and blood samples (lipids, glucose and metabolic syndrome measures) are collected at 0, 6, 12, and 18 months. The mobile application-based counselling contains aspects of cognitive behavior therapy and persuasive system design and consists of twice a week reminders, tasks, self-monitoring, and reflection. The main outcome is the decrease in body weight. Secondary outcomes are changes in eating behavior, psychological factors, components of metabolic syndrome (waist circumference, plasma lipid and glucose values, blood pressure), and calculated scores of metabolic condition and adiposity.
Interventions
DEVICEMobile application-based lifestyle change program
Usage of the Mobile application-based lifestyle change program
Sponsors
University of Oulu
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* Body mass index 30 to 40 kg/m2 * Ownership of a smartphone
Exclusion criteria
* Untreated hypothyroidism * Oral glucocorticoid treatment * Pregnancy or lactation * No possibility to use mobile phone or tablet * No knowledge of Finnish language * Presumed lack of adherence to the study * Participation in another ongoing weight management program * Diagnosed or suspicion of cardiovascular disease causing restrictions to exercising * Bariatric operation planned * Usage of any anti-obesity drug
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in body weight | Baseline to 6 months |
Secondary
| Measure | Time frame |
|---|---|
| Change in body weight | Baseline to 12 months |
| Change in eating behavior | Baseline to 6 months |
| Change in waist circumference | Baseline to 6 months |
| Change in blood pressure | Baseline to 6 months |
| Change in metabolic syndrome status | Baseline to 6 months |
Countries
Finland
Outcome results
None listed