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Development and usability of the “Cognitive Evergreenland” app to engage individuals at high risk of dementia in lifestyle interventions
Rong Lin, Yuanjiao Yan, Chenshan Huang, Junyu Zhao, Mingfeng Chen, Hong Li. Scientific Reports, 2025-03-15
Topic: Risk, prevention and care in population studies
Multidomain lifestyle interventions can improve cognitive function and mobile health technologies can deliver cost-effective interventions. We developed the smartphone app, Cognitive Evergreenland, to promote cognitive health in people at high risk of dementia, and assessed its usability. Functional modules were selected using a behaviour change wheel (BCW) theory-based method. Target behaviors were assessed by literature review and focus group interviews. Findings were mapped onto the Capability, Opportunity, and Motivation-Behaviour (COM-B) model and Theoretical Domains Framework, identifying behaviors requiring change and linking them to intervention functions. Behavior change techniques (BCTs) considered likely to be effective were selected, and corresponding COM-B components and BCTs translated into application functionalities. The app was optimized based on user feedback collected by interview and evaluated using "Mobile Health App Usability Questionnaire for Standalone mHealth Apps (Patient Version)". Promoting adherence to multidomain lifestyle interventions required changes in physical and psychological abilities, reflective and automatic motivation reinforcement, and social and physical opportunities provision. We identified seven key intervention functions and selected 16 BCTs. Finalized Cognitive Evergreenland modules included health education, cognitive stimulation, cognitive training, interactive communication, health diary, functional assessment, and personal profile. Target users indicated overall satisfaction with usability. BCW theory application facilitated Cognitive Evergreenland development.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Lin, R., Yan, Y., Huang, C., Zhao, J., Chen, M., & Li, H. (2025). Development and usability of the “Cognitive Evergreenland” app to engage individuals at high risk of dementia in lifestyle interventions. Scientific Reports. https://doi.org/10.1038/s41598-025-92535-2
Vancouver
Lin R, Yan Y, Huang C, Zhao J, Chen M, Li H. Development and usability of the “Cognitive Evergreenland” app to engage individuals at high risk of dementia in lifestyle interventions. Scientific Reports. 2025. doi:10.1038/s41598-025-92535-2. PMID: 40089518.
BibTeX
@article{lin2025-40089518,
author = {Lin, Rong and Yan, Yuanjiao and Huang, Chenshan and Zhao, Junyu and Chen, Mingfeng and Li, Hong},
title = {{Development and usability of the “Cognitive Evergreenland” app to engage individuals at high risk of dementia in lifestyle interventions}},
journal = {Scientific Reports},
year = {2025},
doi = {10.1038/s41598-025-92535-2},
pmid = {40089518},
url = {https://doi.org/10.1038/s41598-025-92535-2}
}
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Key findings
- Target users indicated overall satisfaction with usability.
Why it matters
This describes the development and usability testing of a smartphone app intended to support lifestyle interventions in people at high risk of dementia. It reports user satisfaction with usability, not whether the app prevents cognitive decline or dementia.
New to this subject? Start with our plain-English guide: Prevention →
Study details
- Evidence strengthLow
How this study scored 34/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Scientific Reports) |
| Journal's citation record | 3 / 4 | Scientific Reports: journal h-index 463 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 4 / 5 | 2025 — within 3 year(s) of the newest study here |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 1 / 7 | Cited 2 times (OpenAlex, 2026-10-10) |
| Citations per year | 0 / 5 | 0.7 citations a year over 3 year(s) since 2025 |
| Impact for its field and year | 2 / 6 | Cited 2.4× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 0 / 6 | No other study in this library cites it |
| Still being cited | 0 / 4 | Cited 2 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 1 / 4 | Last-listed author Hong Li: h-index 18 (OpenAlex, whole career) |
| Institution's track record | 0 / 3 | Fujian Medical University: institution h-index 277 (OpenAlex) |
| Multi-centre collaboration | 1 / 3 | OpenAlex lists 2 institution(s) in 1 country |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 40089518) |
| Free to read | 2 / 2 | Free to read |
| Total | 34 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
- DOI: 10.1038/s41598-025-92535-2
- PubMed: 40089518
- Original source →
- Free full text: Scientific Reports →
Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
Studies this one cites
Referenced by this study and also in the alzhub library, so you can read them here.
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