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Mixed Methods Feasibility Study of an App for Childhood Obesity Prevention and Management

Acceptability and Usability of a Mobile Health App for Family Obesity Prevention and Management: A Mixed-methods Feasibility Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05261555
Enrollment
231
Registered
2022-03-02
Start date
2020-06-27
Completion date
2021-08-23
Last updated
2022-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Child Obesity

Keywords

child obesity, digital health, mobile applications, behavior change

Brief summary

This evaluation evaluated Health Education England's NoObesity digital health app's usability and acceptability to undertake activities improving families' diet, physical activity and weight. The purpose of the study is to evaluate the app's influence on self-efficacy and goal setting and to determine what can be learned to improve its design for future studies, should there be evidence of adoption and sustainability.

Interventions

DEVICENoObesity app

The NoObesity system consists of two linked apps - the NoObesity Family app and the NoObesity Professional app.

Sponsors

Health Education England, Wessex
CollaboratorOTHER
University of Plymouth
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* adult users (over 18 years) * fluent in English * willing to use the app * parents or legal guardians of a child or children OR health care professionals linked to the parent or guardian * owner of a smartphone to access the app, with 4G data access

Exclusion criteria

* individuals who are known to the researchers or staff at Health Education England * deaf or hearing impairment * prior use of the app before study commencement * refusal to give informed consent * children, vulnerable young people, or vulnerable adults.

Design outcomes

Primary

MeasureTime frameDescription
User experiences and acceptability of the NoObesity app6 monthsMeasured qualitatively through semi-structured interviews to examine what participants liked, disliked, and what they thought could be improved

Secondary

MeasureTime frameDescription
Qualitative user perspectives of usability6 monthsQualitative feedback from semi-structured interviews
Perceived impact of app on motivation6 monthsQualitative feedback from semi-structured interviews
Perceived impact of specific app features on motivation6 monthsMeasured quantitatively on self-report final survey
Perceived impact of app on health behaviours6 monthsQualitative feedback from semi-structured interviews
Usability of the NoObesity app6 monthsMeasured using the System Usability Scale (minimum of 0, maximum of 100, higher scores indicate better usability)
Perceived impact of app on self-efficacy6 monthsMeasured quantitatively by assessing users' confidence in their ability to achieve goals in the app and in the final survey
Engagement with the app6 monthsMeasured using app use data (first and last logins) and self-reported engagement with the app
Factors relating to adoption, implementation, and sustainability6 monthsMeasured qualitatively in semi-structured interviews with participants and representatives from Health Education England
Self-reported impact of the app on health behaviours6 monthsMeasured quantitatively on self-report final survey

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026