Author

Kristell M. Penfornis

Observed names: K M Penfornis, Kristell M Penfornis, Kristell Penfornis, Penfornis, K., Penfornis, K.M., Penfornis, Kristell, Penfornis, Kristell M., Penfornis, Kristell M. (author)

Institution: Leiden University

Observed institutions: Leiden University, Leiden University Medical Center

ORCID: 0000-0002-9758-9004

Observed ORCID: 0000-0002-9758-9004

OpenAlex ID: A5087764734

My future-self has (not) quit smoking: An experimental study into the effect of a future-self intervention on smoking-related self-identity constructs

2023 · Kristell M. Penfornis, Winifred A. Gebhardt, et al. · Social Science & Medicine · 19

Mapping the evidence on identity processes and identity-related interventions in the smoking and physical activity domains: a scoping review protocol

2022 · Kristell M Penfornis, Milon H M Van Vliet, et al. · BMJ Open · 16

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Fibrotic-like abnormalities notably prevalent one year after hospitalization with COVID-19

2022 · Bas F.M. van Raaij, J. Lauran Stöger, et al. · Respiratory Medicine and Research · 12

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Users’ needs for a digital smoking cessation application and how to address them: A mixed-methods study

2022 · Nele Albers, Mark A. Neerincx, et al. · PeerJ · 11

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Protocol of a mixed-methods evaluation of Perfect Fit: A personalized mHealth intervention with a virtual coach to promote smoking cessation and physical activity in adults

2024 · Milon H. M. van Vliet, Anke Versluis, et al. · Digital Health · 7

Conceptualisation, operationalisation and role of identity in physical activity and smoking in individuals aged 45 and over: a systematic scoping review

2025 · Kristell M Penfornis, Milon H M van Vliet, et al. · BMJ Open · 6

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Targeting Key Risk Factors for Cardiovascular Disease in At-Risk Individuals: Developing a Digital, Personalized, and Real-Time Intervention to Facilitate Smoking Cessation and Physical Activity

2024 · Anke Versluis, Kristell M Penfornis, et al. · JMIR Cardio · 5

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Feasibility of generating structured motivational messages for tailored physical activity coaching

2023 · Ramya P. Ghantasala, Nele Albers, et al. · Frontiers in Digital Health · 5

User Experiences With Digital Future-Self Interventions in the Contexts of Smoking and Physical Inactivity: Mixed Methods Multistudy Exploration

2025 · Kristell M Penfornis, Nele Albers, et al. · JMIR Formative Research · 4

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A systematic review on the effect of identity-related interventions on physical activity and smoking

2024 · MHM van Vliet, K M Penfornis, et al. · European Journal of Public Health · 2

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Evaluation of the Feasibility and Acceptability of Perfect Fit, a Virtual Coach–Based mHealth Intervention for Smoking Cessation and Physical Activity in Adults: Mixed Methods Study

2026 · Milon H M van Vliet, Eline Meijer, et al. · JMIR Human Factors · 1

The effect of identity-related interventions on physical activity- and smoking-related identities and behavior: a mixed-methods systematic review

2026 · Milon H. M. van Vliet, Kristell M. Penfornis, et al. · Systematic Reviews · 1

Perfect Fit: een identiteitsgebaseerde virtuele coach die ondersteunt bij stoppen met roken en meer bewegen

2021 · Eline Meijer, Kristell Penfornis, et al. · Data Archiving and Networked Services (DANS) · 1

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I do as I am

2026 · Penfornis, K.M. · Leiden Repository (Leiden University)

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Additional file 1 of The effect of identity-related interventions on physical activity- and smoking-related identities and behavior: a mixed-methods systematic review