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Dr George Thomas
Dr

George Thomas

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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:

  • Digital health and healthy screen use in childhood

  • Health behaviour change and family-based interventions

  • 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

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

  • Physical activity and health

  • Measurement of physical activity and sedentary behaviour

  • Screen use in children and adolescents

  • 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:

  • 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.

  • 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.

  • 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.

  • 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.

  • 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

50 works between 2018 and 2025

21 - 40 of 50 works

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.

Evaluation of the Motus wearable-sensor-based system to classify postures and movements in 3-14 aged children

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.

Associations of early childhood screen use contexts with cognitive and psychosocial outcomes: A systematic review and meta-analysis

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.

Exploring Australian parents’ perceptions of young children’s screen use

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.

Better methods to provide stronger evidence on health implications of screen use by children

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

Evaluation of the ActiMotus software to accurately classify postures and movements in children aged 3–14

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

24-hour movement behaviors of LGBTQA+ young people: a systematic review

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

Device-based measurement of office-based physical activity and sedentary time: a systematic review

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

Early childhood screen use contexts and cognitive and psychosocial outcomes : a systematic review and meta-analysis

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

Intense and problematic social media use and sleep difficulties of adolescents in 40 countries

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.

Device-based measurement of office-based physical behaviour: a systematic review

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

Measurement method options to investigate digital screen technology use by children and adolescents: a narrative review

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.

Accuracy and Acceptability of the Desk Positioning System (DPS): a new sit-stand desk measurement device

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

An umbrella review of the benefits and risks associated with youths’ interactions with electronic screens

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.

Associations between excessive and problematic social media use and psychosomatic complaints among adolescents: does physical activity moderate the associations?

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.

Exploring contemporary screen time in Australian adolescents: A qualitative study

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.

Using automated wearable cameras to categorise the type and context of screen-based behaviours among adolescents: an observational study

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.

Lifestyle management of youth impacted by type 2 diabetes: A systematic review

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.

On the centrality of (movement) creativity to enrich the sustainability of physical literacy

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

Physical activity and sedentary behaviour of female adolescents in Indonesia: a multi-method study on duration, pattern and context

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

Using wearable cameras to categorize the type and context of screen-based behaviors among adolescents: observational study

Funding

Past funding

  • 2023 - 2024
    Creativity in Motion: Fostering athletes' creative potential and adaptability
    Tennis Australia
    Open grant

Supervision

Availability

Dr George Thomas is:
Available for supervision

Looking for a supervisor? Read our advice on how to choose a supervisor.

Available projects

  • 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

Media

Enquiries

Contact Dr George Thomas directly for media enquiries about:

  • Adolescents
  • Children
  • Physical activity
  • Screen use
  • Sedentary behaviour

Need help?

For help with finding experts, story ideas and media enquiries, contact our Media team:

communications@uq.edu.au