Overview
Background
Dr George Thomas is a Postdoctoral Research Fellow at the University of Queensland’s Health and Wellbeing Centre for Research Innovation and a member of the ARC Centre of Excellence for the Digital Child. His work focuses on understanding children’s engagement with digital technologies and how this shapes their health, wellbeing, and development.
George has over 15 years of experience in public health and behavioural sciences, with expertise spanning:
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Digital health and healthy screen use in childhood
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Health behaviour change and family-based interventions
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Translation of research into community programs
He began his career with a UK government taskforce on weight management, delivering healthy lifestyle programs for school children and families. Since then, his research has focused on bridging science and practice, ensuring evidence informs policy and community action.
George is also committed to education and mentorship. He has taught research methods and public health to undergraduate students in paramedicine and sport and exercise sciences, consistently receiving excellent feedback, and has supervised more than 30 student research projects.
A passionate advocate for promoting healthy behaviours, George works to create practical solutions that support families, schools, and communities.
Availability
- Dr George Thomas is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Bachelor (Honours) of Exercise and Sports Sciences, University of Gloucestershire
- Masters (Research) of Health Sciences (Public Health), University of Bristol
- Doctor of Philosophy of Behavioural Science, University of Southern Queensland
Research interests
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Physical activity and health
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Measurement of physical activity and sedentary behaviour
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Screen use in children and adolescents
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Pragmatic evaluation of health promotion interventions
Research impacts
George’s research is making a difference in how families, schools, and communities support children’s healthy engagement with digital technologies and physical activity. His work provides evidence that guides policy, informs community programs, and shapes the way health organisations address children’s wellbeing.
Key impacts include:
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High international reach and influence: 25 publications since 2018 have attracted more than 2,500 citations, with one study ranked the highest cited article since 2017 in Psychology of Sport and Exercise. These findings have helped set the agenda for research and practice in youth sport and screen use.
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Evidence translated into practice: Research has informed healthy lifestyle programs for school children and families, contributing to better approaches to weight management, behaviour change, and digital wellbeing.
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Recognition and leadership: Awarded Best Oral Presentation at the International Society for Behavioural Nutrition and Physical Activity (ISBNPA) Congress, highlighting the relevance of his findings to international health and wellbeing communities.
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Capacity building and collaboration: Investigator on grants exceeding $4M, including $300,000 from the ARC Centre of Excellence for the Digital Child, supporting large-scale projects that bring researchers, government, and communities together to create real-world solutions.
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Contributing to quality science: Regular reviewer for leading journals in psychology and public health, ensuring high standards of evidence in the field.
Through this work, George is helping to shape healthier futures for children by ensuring research translates beyond the academic world into practical, lasting impact.
Works
Search Professor George Thomas’s works on UQ eSpace
2024
Conference Publication
Evaluation of the Motus wearable-sensor-based system to classify postures and movements in 3-14 aged children
Rasmussen, Charlotte, Hendry, Danica, Thomas, George, Beynon, Amber, Stearne, Sarah, Zabatiero, Julianna, Davey, Paul, Rohl, Andrew, Straker, Leon and Campbell, Amity (2024). Evaluation of the Motus wearable-sensor-based system to classify postures and movements in 3-14 aged children. International Society for Physical Activity and Health, Paris, France, 28-31 October 2024.
2024
Conference Publication
Associations of early childhood screen use contexts with cognitive and psychosocial outcomes: A systematic review and meta-analysis
Mallawaarachichi, Sumudu, Burley, Jade, Mavilidi, Myrto, Howard, Steven, Straker, Leon, Kervin, Lisa, Staton, Sally, Hayes, Nicola, Machell, Amanda, Torjinski, Marina, Brady, Brodie, Thomas, George, Horwood, Sharon, White, Sonia, Zabatiero, Julianna, Rivera, Clara and Cliff, Dylan (2024). Associations of early childhood screen use contexts with cognitive and psychosocial outcomes: A systematic review and meta-analysis. International Society for Physical Activity and Health, Paris, France, 28-31 October 2024.
2024
Conference Publication
Exploring Australian parents’ perceptions of young children’s screen use
Thomas, George, Vergeer, Ineke, Rowland, Deborah, Kolbe-Alexander, Tracy, Krishnamoorthy, Govind, March, Sonja, Gomersall, Sjaan and Biddle, Stuart (2024). Exploring Australian parents’ perceptions of young children’s screen use. International Society for Physical Activity and Health, Paris, France, 28-31 October 2024.
2024
Conference Publication
Better methods to provide stronger evidence on health implications of screen use by children
Beynon, Amber, Hendry, Danica, Rasmussen, Charlotte, Rohl, Andrew, Eynon, Rebecca, Thomas, George, Stearne, Sarah, Campbell, Amita, Harris, Courtney, Zabatiero, Julianna and Straker, Leon (2024). Better methods to provide stronger evidence on health implications of screen use by children. International Society for Physical Activity and Health, Paris, France, 28-31 October 2024.
2024
Journal Article
Evaluation of the ActiMotus software to accurately classify postures and movements in children aged 3–14
Lund Rasmussen, Charlotte, Hendry, Danica, Thomas, George, Beynon, Amber, Stearne, Sarah Michelle, Zabatiero, Juliana, Davey, Paul, Roslyng Larsen, Jon, Rohl, Andrew Lloyd, Straker, Leon and Campbell, Amity (2024). Evaluation of the ActiMotus software to accurately classify postures and movements in children aged 3–14. Sensors, 24 (20) 6705, 6705. doi: 10.3390/s24206705
2024
Journal Article
24-hour movement behaviors of LGBTQA+ young people: a systematic review
Fortnum, Kathryn, Gomersall, Sjaan R., Ross, Megan H., Woodforde, James, Thomas, George, Wen, Yu-Shu, Perales, Francisco and Stylianou, Michalis (2024). 24-hour movement behaviors of LGBTQA+ young people: a systematic review. Journal of Physical Activity & Health, 21 (12), 1-17. doi: 10.1123/jpah.2024-0343
2024
Journal Article
Device-based measurement of office-based physical activity and sedentary time: a systematic review
Bongers, Noah, Healy, Genevieve N., Thomas, George and Clark, Bronwyn K. (2024). Device-based measurement of office-based physical activity and sedentary time: a systematic review. Journal for the Measurement of Physical Behaviour, 7 (1), 10-22. doi: 10.1123/jmpb.2024-0011
2024
Journal Article
Early childhood screen use contexts and cognitive and psychosocial outcomes : a systematic review and meta-analysis
Mallawaarachchi, Sumudu, Burley, Jade, Mavilidi, Myrto, Howard, Steven J., Straker, Leon, Kervin, Lisa, Staton, Sally, Hayes, Nicole, Machell, Amanda, Torjinski, Marina, Brady, Brodie, Thomas, George, Horwood, Sharon, White, Sonia L. J., Zabatiero, Juliana, Rivera, Clara and Cliff, Dylan (2024). Early childhood screen use contexts and cognitive and psychosocial outcomes : a systematic review and meta-analysis. JAMA Pediatrics, 178 (10), 1017-1026. doi: 10.1001/jamapediatrics.2024.2620
2024
Journal Article
Intense and problematic social media use and sleep difficulties of adolescents in 40 countries
Khan, Asaduzzaman, Thomas, George, Karatela, Shamshad, Morawska, Alina and Werner-Seidler, Aliza (2024). Intense and problematic social media use and sleep difficulties of adolescents in 40 countries. Journal of Adolescence, 96 (5), 1116-1125. doi: 10.1002/jad.12321
2024
Conference Publication
Device-based measurement of office-based physical behaviour: a systematic review
Clark, Bronwyn, Thomas, George, Bongers, Noah and Healy, Genevieve (2024). Device-based measurement of office-based physical behaviour: a systematic review. International Society for the Measurement of Physical Behaviour, Rennes, France, 17-21 June 2024.
2024
Journal Article
Measurement method options to investigate digital screen technology use by children and adolescents: a narrative review
Beynon, Amber, Hendry, Danica, Lund Rasmussen, Charlotte, Rohl, Andrew L., Eynon, Rebecca, Thomas, George, Stearne, Sarah, Campbell, Amity, Harris, Courtenay, Zabatiero, Juliana and Straker, Leon (2024). Measurement method options to investigate digital screen technology use by children and adolescents: a narrative review. Children, 11 (7) 754, 754. doi: 10.3390/children11070754
2024
Conference Publication
Accuracy and Acceptability of the Desk Positioning System (DPS): a new sit-stand desk measurement device
Thomas, George, Clark, Bronwyn and Healy, Genevieve (2024). Accuracy and Acceptability of the Desk Positioning System (DPS): a new sit-stand desk measurement device. International Society for the Measurement of Physical Behaviour, Rennes, France, 17-21 June 2024.
2024
Journal Article
An umbrella review of the benefits and risks associated with youths’ interactions with electronic screens
Sanders, Taren, Noetel, Michael, Parker, Philip, Del Pozo Cruz, Borja, Biddle, Stuart, Ronto, Rimante, Hulteen, Ryan, Parker, Rhiannon, Thomas, George, De Cocker, Katrien, Salmon, Jo, Hesketh, Kylie, Weeks, Nicole, Arnott, Hugh, Devine, Emma, Vasconcellos, Roberta, Pagano, Rebecca, Sherson, Jamie, Conigrave, James and Lonsdale, Chris (2024). An umbrella review of the benefits and risks associated with youths’ interactions with electronic screens. Nature Human Behaviour, 8 (1), 82-99. doi: 10.1038/s41562-023-01712-8
2023
Conference Publication
Associations between excessive and problematic social media use and psychosomatic complaints among adolescents: does physical activity moderate the associations?
Khan, Asad and Thomas, George (2023). Associations between excessive and problematic social media use and psychosomatic complaints among adolescents: does physical activity moderate the associations?. Asia-Pacific Society for Physical Activity, Wellington, New Zealand, 27 - 29 November 2023.
2023
Conference Publication
Exploring contemporary screen time in Australian adolescents: A qualitative study
Thomas, George, Bennie, Jason, De Cocker, Katrien and Biddle, Stuart (2023). Exploring contemporary screen time in Australian adolescents: A qualitative study. Asia-Pacific Society for Physical Activity, Wellington, New Zealand, 27-29 November.
2023
Conference Publication
Using automated wearable cameras to categorise the type and context of screen-based behaviours among adolescents: an observational study
Thomas, George, Bennie, Jason, De Cocker, Katrien, Andriyani, Fitria Dwi and Biddle, Stuart (2023). Using automated wearable cameras to categorise the type and context of screen-based behaviours among adolescents: an observational study. Asia-Pacific Society for Physical Activity, Wellington, New Zealand, 27-29 November 2023.
2023
Conference Publication
Lifestyle management of youth impacted by type 2 diabetes: A systematic review
Fortnum, Kathern, Thomas, George, Too, Kiara, Tam, Athena, Tilley, Kate, Cairney, John and Gomersall, Sjaan (2023). Lifestyle management of youth impacted by type 2 diabetes: A systematic review. Asia-Pacific Society for Physical Activity, Wellington, New Zealand, 27-29 November 2023.
2023
Conference Publication
On the centrality of (movement) creativity to enrich the sustainability of physical literacy
Richard, Veronique, Thomas, George, Gomersall, Sjaan and Cairney, John (2023). On the centrality of (movement) creativity to enrich the sustainability of physical literacy. International Physical Literacy Conference, New York, United States, 1-3 May 2023.
2022
Journal Article
Physical activity and sedentary behaviour of female adolescents in Indonesia: a multi-method study on duration, pattern and context
Andriyani, Fitria Dwi, Biddle, Stuart J. H., Priambadha, Aprida Agung, Thomas, George and De Cocker, Katrien (2022). Physical activity and sedentary behaviour of female adolescents in Indonesia: a multi-method study on duration, pattern and context. Journal of Exercise Science & Fitness, 20 (2), 128-139. doi: 10.1016/j.jesf.2022.02.002
2022
Journal Article
Using wearable cameras to categorize the type and context of screen-based behaviors among adolescents: observational study
Thomas, George, Bennie, Jason A., De Cocker, Katrien, Dwi Andriyani, Fitria, Booker, Bridget and Biddle, Stuart J. H. (2022). Using wearable cameras to categorize the type and context of screen-based behaviors among adolescents: observational study. JMIR Pediatrics and Parenting, 5 (1) e28208, e28208. doi: 10.2196/28208
Funding
Past funding
Supervision
Availability
- Dr George Thomas is:
- Available for supervision
Looking for a supervisor? Read our advice on how to choose a supervisor.
Available projects
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Health and Wellbeing Centre for Research Innovation
We currently have opportunities available for multiple higher degree research (HDR) students to join the Health and Wellbeing Centre for Research Innovation (HWCRI). In 2022, UQ received foundation funding from Health and Wellbeing Queensland (HWQld) to co-fund the creation of the Health and Wellbeing Centre for Research Innovation (HWCRI). In partnership with HWQld, HWCRI provides clinical and research expertise in in the fields of physical activity and nutrition with a population and preventative health focus, to inform HWQld’s program design, delivery and evaluation. HWCRI conducts innovative and novel high impact transdisciplinary research in community health and wellbeing across the lifecourse, to reduce health inequities and improve the health and wellbeing of all Queenslanders. The UQ HWCRI aims to translate research and evaluation findings into concepts and products for population level, state-wide implementation; and to build and sustain capacity in health promotion expertise by providing ‘real world’ training opportunities for undergraduate, post-graduate and higher degree research (HDR) students and fellows.
Successful applicants will be part of the School of Human Movement and Nutrition Sciences which is consistently ranked in the world’s Top 5 and is highly regarded nationally and internationally for its teaching, research and community outreach programs. The 2021 QS World Rankings by subject area ranked UQ first in Australia and second in the world in sports-related subjects. They will also be supported and conduct research in partnership with Health and Wellbeing Queensland (HWQld) which is a Queensland Government prevention agency aimed at improving population health and reducing health inequities by reducing the burden of chronic disease across the state. The health and wellbeing of the next generation of Queensland children is a key focus for HWQld and offers a once in a life-time opportunity to change the lives of the next generation where every Queenslander can live their best life, regardless of where they live.
This opportunity would suit students with a background in allied health, health promotion, public health, health psychology, implementation science, or human movement studies. Excellent communication and interpersonal skills are essential. Experience working with industry stakeholders and knowledge of qualitative and quantitative research methods and behaviour change would be of benefit. First Nations applicants are particularly encouraged to apply. This is a unique opportunity to be at the forefront of this exciting new research centre and engage with industry partners and government and specific programs of research can be tailored based on the applicant’s interest and previous experience and expertise.
Supervision history
Current supervision
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Master Philosophy
Time cost and fatigue associated with sports participation for athletes with and without severe to profound disability and high support needs, a comparative analysis
Associate Advisor
Other advisors: Professor Sean Tweedy, Associate Professor Sjaan Gomersall
Media
Enquiries
Contact Dr George Thomas directly for media enquiries about:
- Adolescents
- Children
- Physical activity
- Screen use
- Sedentary behaviour
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