Mark S. Tremblay

Senior Scientist and Director, Healthy Active Living and Obesity, CHEO Research Institute

Professor Mark Tremblay has a Bachelor of Commerce degree in Sports Administration and a Bachelor of Physical and Health Education degree from Laurentian University. His graduate training was from the University of Toronto where he obtained his M.Sc. and Ph.D. from the Department of Community Health with a specialty in Exercise Science. Dr. Tremblay is the Director of Healthy Active Living and Obesity Research (HALO) at the Children’s Hospital of Eastern Ontario Research Institute and Professor of Pediatrics in the Faculty of Medicine, University of Ottawa. He is a Fellow of the Canadian Society for Exercise Physiology, Fellow of the American College of Sports Medicine, Fellow of the Canadian Academy of Health Sciences, President of the Active Healthy Kids Global Alliance, Founder of the Sedentary Behaviour Research Network, Chair of Outdoor Play Canada, and Adjunct/Visiting Professor at five other universities on four continents.

Dr. Tremblay has published 500 scientific papers and book chapters in the areas of childhood obesity, physical activity measurement, exercise physiology, sedentary physiology, outdoor play and health surveillance. His h-index is 75 and his published research has been cited 22,000 times according to Scopus. He has delivered over 800 scholarly conference presentations, including more than 150 invited and keynote addresses, in 21 different countries. Dr. Tremblay received an honorary doctorate from Nipissing University, the Queen Elizabeth II Diamond Jubilee Medal, the Lawson Foundation 60th Anniversary Award, the Canadian Society for Exercise Physiology Honour Award, the Victor Marchessault Advocacy Award from the Canadian Pediatric Society, and the Vic Neufeld Mentorship Award in Global Health Research from the Canadian Coalition for Global Health Research for his leadership contributions to healthy active living in Canada and around the world. Dr. Tremblay’s most productive work has resulted from his 31-year marriage to his wife Helen, yielding four wonderful children.

Related News

Research Projects

  1. Gender differences in physical activity and sedentary behavior: results from over 200,000 Latin-American children and adolescents

    12/08/2021

    In conclusion, gender differences in the compliance with physical activity guidelines and the <3 hours recreational sedentary behavior cut-point are evident among children and adolescents from Latin-American countries, with boys being more active than girls.

  2. Do fit kids have fit parents?

    20/01/2021

    A significant and positive association was evident in measured physical fitness among parents and children. Some variation in the presence and strength of associations existed according to child and parent sex.

  3. Typologies of family functioning and 24-h movement behaviors

    15/01/2021

    These findings highlight the importance of the family environment for promoting healthy movement behaviors among children.

  4. Association between 24‐hour movement guidelines and physical fitness in children

    22/12/2020

    In order to enhance children’s physical fitness, public health recommendations should primarily target MVPA.

  5. Regional differences in access to the outdoors and outdoor play of Canadian children and youth during the COVID-19 outbreak

    18/12/2020

    It is unsurprising that in the provinces that have had the highest number of COVID-19 cases, there have been the most stringent restrictions on access to the outdoors. It is also unsurprising that these same provinces have had the greatest decline in time spent outdoors and in outdoor play among children and youth.