Research Interest

My overall program addresses the influence of social and physical environments, and air quality, on obesity and related behaviours and conditions among vulnerable youth. Specific aims include estimating behavoural trajectories and examining how distinct behavioural patterns and health outcomes are influenced by of school and neighbourhood characteristics.

Here are my main domains of research:

  • Epidemiology of Pediatric Obesity
  • Obesity, physical activity, sedentary behaviours, dietary habits
  • Cardiovascular risk factor profile and metabolic health of children and adolescents
  • Methods of longitudinal data analysis
  • Influence of residential neighbourhoods and schools

Dr. Barnett is an FRQS Senior Career Award Scholar and is Associate Professor at the INRS-Institut Armand Frappier. She obtained her doctorate in Epidemiology at McGill University in Montreal, Canada, and completed a post-doctoral fellowship in Health Promotion in the department of Social and  Preventive Medicine at Université de Montréal. In addition to her laboratory at the CHU Sainte-Justine Children’s Hospital Research Centre, she is an associate member in the Depts. of Family Medicine at Mcgill University and Exercise Science at Concordia University, and in the School of Public Health at Université de Montréal. She is also the Director of Knowledge Translation of the Cardiometabolic, Diabetes and Obesity (CMDO) provincial Research Network. The overarching aim of Dr. Barnett’s program of research focuses on investigating the influence of features of built and social environments on pediatric obesity, and how these can be leveraged to promote healthy weight. She oversees a state of the art spatial-environmental diagnostic and analytic laboratory that consolidates environmental with clinical data and which supports a range of original methodological, etiological, and applied research endeavours. Her research focuses on defining relevant environments, capturing salient characteristics and producing meaningful indicators within residential neighborhoods, schools and social networks; exploring how these change and evolve over time as youth grow and mature; and testing their potential influence on cardiovascular risk factors including obesity and related lifestyle behaviours. Projects also measure novel risk factors and test innovative hypotheses underlying potential mediating pathways in the environment-obesity relation. She strives to translate methodological and etiological findings to clinical applications and its public health extensions. Ultimately, she seeks to identify targets that could reduce the obesogenic nature of environments.

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