Conseil d'épidémiologie

Stephanie Prince Ware is a Senior Research Scientist in the Centre for Surveillance and Applied Research at the Public Health Agency of Canada and an Adjunct Professor in the School of Epidemiology and Public Health at the University of Ottawa. She has been an Associate Editor with the International Journal of Behavioral Nutrition and Physical Activity since 2022. She holds a PhD in Population Health, an MSc in Epidemiology and a BSc in Human Kinetics, and completed two post-doctoral fellowships at the University of Ottawa Heart Institute and the Public Health Agency of Canada.

Stephanie’s research focuses on the measurement and surveillance of health behaviours, including sedentary behaviour, physical activity, active transportation and sleep, with particular attention to national surveillance systems. She also studies determinants such as occupational roles and the built environment, and has a strong interest in evaluating natural experiments to understand how environmental changes and policies affect population health behaviours. The overarching goal of her work is to improve public health by identifying critical intervention targets and developing evidence-based strategies that enhance health outcomes.

Stephanie is excited to take on the role of Co-Chair of the ISPAH Epidemiology Council.

Alberto Flórez-Pregonero is an Associate Professor in the School of Education at Pontificia Universidad Javeriana (Colombia), where he also leads the In-novum Educatio research group. He holds a PhD in Physical Activity, Nutrition, and Wellness from Arizona State University, a Master’s in Education from Pontificia Universidad Javeriana, a specialisation in Physical Exercise for Health from Universidad del Rosario, and an undergraduate degree in Physical Education from Universidad Pedagógica Nacional.

His research focuses on public health epidemiology, with an emphasis on the measurement and surveillance of physical activity and sedentary behaviour, and the implementation of community and lifestyle interventions to promote physical activity and reduce sedentary behaviour across the lifespan.

Nicholas Koemel is a trained dietitian and Senior Research Fellow in the Turner Institute for Brain and Mental Health at Monash University. He serves as the lead integrative behavioural scientist at BrainPark, a state-of-the-art wellbeing research facility that supports supervised and remote interventions, physiological and behavioural assessment, and participant engagement.

His research focuses on the synergistic effects of physical activity, sleep and nutrition on optimising health outcomes across the lifespan, with a particular emphasis on cardiovascular disease, cancer, healthy longevity and all-cause mortality. His work spans wearable technologies, behavioural epidemiology, lifestyle medicine and adaptive behaviour change interventions, including the development and translation of digital health and AI-enabled coaching systems.

Samuel C. Dumith holds a degree in Physical Education, and a master’s degree, doctorate and postdoctoral degree in Epidemiology. He is an Associate Professor at the Federal University of Rio Grande (FURG), where he teaches in the Faculty of Medicine and the Postgraduate Program in Health Sciences. He is a member of ISPAH, the Brazilian Society for Physical Activity and Health (SBAFS), the Global Observatory for Physical Activity (GoPA!) and the Brazilian Task Force on Physical Activity in Pediatrics (TASK-PED). He is also a senior collaborator of the Global Burden of Disease (GBD) network and a member of the NCD Risk Factor Collaboration (NCD-RisC).

His research focuses on public health, with an emphasis on physical activity, mental health and chronic diseases, and he is currently researching the effects of population ageing on human health. He is the 2026 Fulbright Chair in Public Health at the University of California San Diego (UCSD).

Matthew Ahmadi is an Associate Professor of Digital Health at Monash University, based at BrainPark in the Turner Institute for Brain and Mental Health and at the Victorian Heart Institute. He is also an affiliate of the University of Sydney, where he is Deputy Director of the Mackenzie Wearables Research Hub. He is on the Editorial Board of the Journal of Physical Activity and Health and is a Working Group member of the Prospective Physical Activity, Sitting, and Sleep (ProPASS) Consortium.

Matthew’s research focuses on developing and applying wearable-based methods to measure physical activity, sedentary behaviour and sleep, and on understanding how these behaviours relate to non-communicable disease across the life course. His work spans behavioural epidemiology, lifestyle medicine and adaptive behaviour change.

Matthew is excited to join the Epidemiology Council and looks forward to working with members to advance contemporary methods and collaboration in physical activity epidemiology.