RecruitingNCT05973383

Evaluation of a Personalised Digital Intervention (EviBody) for Healthy and Sustained Lifestyle Behaviors and Well-being Among Adults: a Real-world Quasi-experimental Study

Effectiveness and Theory-based Evaluation of a Personalised Digital Intervention (EviBody) for Healthy and Sustained Lifestyle Behaviours and Well-being Among Adults

Sponsor

Sophiahemmet University

Enrollment

1,500 participants

Start Date

Jan 1, 2026

Study Type

OBSERVATIONAL

Conditions

Well-being

Summary

The goal of this quasi-experimental observational study is to evaluate the impact of a personally tailored digital intervention aimed to support a healthy lifestyle on well-being, lifestyle behaviors, and mental health among the adult population. The main questions it aims to answer are: I) Is a digital intervention developed to offer personalised digital support for healthy habits effective in improving well-being compared to a control group from the general population after 6 months? II) Is the effectiveness dose-dependent (better effect with higher membership level)? III) Does the digital intervention assist in maintaining healthy eating and physical activity habits, mental health, and well-being across 24 months? IV) Are sociodemographic factors associated with achieving the self-identified goals and improvements in eating and physical activity habits, mental health, and well-being? VI) Do engagement, motivation, self-efficacy, and perceived barriers mediate the associations between sociodemographic characteristics and changes in self-identified goals, eating and physical activity habits, mental health, and well-being over a 24-month period? V) How is the pattern of user engagement across 24 months? Participants are users of the mobile phone application EviBody. The group will be compared with individuals from the general population to evaluate if the digital intervention is effective in improving well-being, eating and physical activity habits, and mental health.

Eligibility

Min Age: 18 Years

Inclusion Criteria5

adults ≥18 years
signing up for the app EviBody using electronic identification
consent to the research study
adults ≥18 years
consent to the research study

Exclusion Criteria8

individuals who are discharged from the app due to refracting the terms of the service,
is currently using a digital product that is explicitly designed to support behaviour change,
subjects scoring >70 on well-being will be excluded from the primary analyses,
subjects who appear as friends, colleagues, or family with anyone in the research or owner group will be excluded.
is currently using a digital product that is explicitly designed to support behaviour change,
is found to be a user of EviBody,
subjects scoring >70 on well-being will be excluded from the primary analyses,
subjects who appear as friends, colleagues, or family with anyone in the research or owner group will be excluded.

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Interventions

BEHAVIORALEviBody- Basic

The app EviBody with three core subjects: 1\) a Healthy eating, 2) Physical activity, and 3) Mental balance. The intervention includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars.

BEHAVIORALEviBody- Standard

The digital service EviBody with three core subjects: 1\) a Healthy diet, 2) Physical activity, and 3) Mental balance. The service includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars. Users with the membership Standard are also offered a community with social support.

BEHAVIORALEviBody- Premium

The digital service EviBody with three core subjects: 1\) a Healthy diet, 2) Physical activity, and 3) Mental balance. The service includes tracking and self-monitoring of behaviors, goal setting, action planning, feedback and digital rewards, an AI chat, a database with food recipes, a database with exercises, inspiration, and skills training webinars. Users with the membership Premium are also offered a community with social support plus private on-line health consultations. The number of private health consultations is 3 for a 3 months subscription, 4 for a 6 months subscription, and 6 for a 12 months subscription.