Projects per year
Personal profile
Research interests
I am a Senior Lecturer at the University of Bath, specialising in the application of psychology and behavioural science to physical activity, mental health, and digital/self-management interventions. I am a Chartered Psychologist with the British Psychological Society (BPS) and a Fellow of the Higher Education Academy. I lead the SWDTP Health, Wellbeing, and Society Pathway and serve as Director of Studies for the ESRC-recognised MRes in Health and Wellbeing and Society. My research focuses on developing and evaluating innovative approaches to promote physical and mental well-being, with a particular emphasis on leveraging digital platforms to enhance accessibility and effectiveness.
I have published extensively in leading peer-reviewed journals, including highly cited work on social media breaks and their impact on mental health. In addition, I have presented my work at national and international conferences. As a co-investigator, I have contributed to successful grant applications totalling more than £12 million, funded by organisations such as NIHR, GW4, ESRC, Avon and Wiltshire Partnership (AWP), and the Wellcome Trust. Currently, I am a co-investigator on several funded projects. These include:
- NIHR Bath Mental Health Research Group: I am one of four Work Package Leads for this multidisciplinary program addressing the urgent mental health needs of 12–25-year-olds in Bath, Northeast Somerset, Swindon, and Wiltshire.
- GW4 Men’s Mental Health Project: This project explores how men engage with mental health support.
- Making Exercise More Effective (MEME) Project: Funded by the Bristol Digital Futures Institute (BDFI) and South-Eastern Norway Regional Health Authority (HSØ), explores the mechanisms linking exercise and mental health. It includes the Healthy Minds program, a student-focused mental health and physical activity service, and research at Modum Bad, a specialist inpatient facility in Norway.
I also supervise several funded PhD students investigating a wide range of topics, including:
- GPs’ perspectives on prescribing physical activity for mental health (Jemima Cooper)
- The use of large language models in digital mental health interventions (Noah Marshall)
- Lifestyle interventions for individuals with disabilities (Lewis Youngson)
- Compositional approaches linking physical activity and health (Beth Taylor)
- Adjustment disorder in military populations (Jenny Stone)
- Parental help-seeking behaviour for adolescent depression (Natalia Kika)
I also co-supervise NIHR SPCR postdoctoral fellows exploring the quality of information in online support groups (Bethan Treadgold) and toolkits to support physical activity promotion in primary care (Rosina Cross).
My previous research includes the development and evaluation of digital behavioural interventions, such as eMotion and e-coachER, aimed at improving physical and mental health. These studies have focused on understanding mechanisms of impact and ensuring intervention fidelity. Additionally, I have co-led projects such as COMET (single-session interventions) and Procrastinate (digital procrastination support), in collaboration with colleagues in Sweden.
Other responsibilities
I am on the editorial board for Mental Health and Physical Activity and have reviewed widely for national and international journals.
Teaching interests
I teach across a range of subject areas including exercise and health psychology, physical activity and mental health, behaviour change and qualitative and quantitative research methods.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Education/Academic qualification
Health and Wellbeing, Doctor of Philosophy, University of Exeter
Award Date: 1 Jun 2018
Health Psychology, Master of Science, University of Southampton
Award Date: 1 Aug 2012
Psychology , Bachelor of Science, University of Winchester
Award Date: 1 Aug 2010
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Collaborations and top research areas from the last five years
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Bath NIHR Mental Health Research Group
Jacobsen, P. (PI), Betts, J. (CoI), Brown, C. (CoI), Button, K. (CoI), Fairchild, G. (CoI), Freeman, T. (CoI), Halligan, S. (CoI), Hines, L. (CoI), Lambert, J. (CoI), Loades, M. (CoI), Russell, A. (CoI), Stallard, P. (CoI), Sunderland, P. (CoI) & Taylor, E. (CoI)
National Institute for Health Research
1/01/25 → 31/12/29
Project: Central government, health and local authorities
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Detecting temporal patterns in the relationship between physical activity and mood using ecological momentary assessment (EMA).
Lambert, J. (PI)
Project: Project at a former HEI
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GW4 Men’s Mental Health Research Group
Barry, T. (PI) & Lambert, J. (CoPI)
13/05/24 → 31/12/24
Project: Research-related funding
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Using app-based behavioural activation to promote physical activity and reduce depresive symptoms in adult men living with depression (the eMotion app)
Lambert, J. (PI)
Avon and Wiltshire Mental Health Partnership NHS Trust
1/08/21 → 30/09/22
Project: Central government, health and local authorities
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Digital Facilitation
Lambert, J. (PI) & Lambert, J. (PI)
National Institute for Health Research
1/06/20 → 31/12/22
Project: Central government, health and local authorities
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Investigating the efficacy of the web-based Common Elements Toolbox (COMET) single session intervention in improving UK university student wellbeing: Randomized controlled trial
Lambert, J., Loades, M., Marshall, N., Higson-Sweeney, N., Chan, S. W. Y., Mahmud, A., Pile, V., Maity, A., Adam, H., Sung, B., Luximon, M., MacLennan, K., Berry, C. & Chadwick, P., 31 Jan 2025, In: Journal of Medical Internet Research. 27, 18 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Investigating the Efficacy of the Web-Based Common Elements Toolbox (COMET) Single-Session Interventions in Improving UK University Student Well-Being: Randomized Controlled Trial
Lambert, J., Loades, M., Marshall, N., Higson-Sweeney, N., Chan, S., Mahmud, A., Pile, V., Maity, A., Adam, H., Sung, B., Luximon, M., MacLennan, K., Berry, C. & Chadwick, P., 31 Jan 2025, In: Journal of Medical Internet Research. 27, p. e58164Research output: Contribution to journal › Article › peer-review
Open Access -
Promoting healthy digital device usage: recommendations for youth and parents
Firth, J., Solmi, M., Löchner, J., Cortese, S., López-Gil, J. F., Machaczek, K., Lambert, J., Fabian, H., Fabiano, N. & Torous, J., 28 Feb 2025, In: World Psychiatry : official journal of the World Psychiatric Association (WPA). 24, 1, p. 1-2 2 p.Research output: Contribution to journal › Editorial › peer-review
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Current experience and future potential of facilitating access to digital NHS primary care services in England: the Di-Facto mixed-methods study
Abel, G., Atherton, H., Sussex, J., Akter, N., Aminu, A. Q., Bak, W., Bryce, C., Clark, C. E., Cockcroft, E., Evans, H., Gkousis, E., Jenkins, G., Jenkinson, C., Khan, N., Lambert, J., Leach, B., Marriott, C., Newbould, J., Parkinson, S. & Parsons, J. & 6 others, , 30 Sept 2024, In: Health and Social Care Delivery Research. 12, 32, p. 1-197 197 p.Research output: Contribution to journal › Article › peer-review
Open Access2 Citations (SciVal) -
Exploring How Patients Are Supported to Use Online Services in Primary Care in England Through "Digital Facilitation": Survey Study
Winder, R., Campbell, J. L., Akter, N., Aminu, A. Q., Lambert, J., Cockcroft, E., Thomas, C., Clark, C. E., Bryce, C., Sussex, J., Atherton, H., Marriott, C. & Abel, G., 7 Aug 2024, In: Journal of Medical Internet Research. 26, e56528.Research output: Contribution to journal › Article › peer-review
Open Access