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PHO Grand Rounds: Sedentary behaviours and body weight: Should we be preoccupied?
Tuesday, July 22, 2014 12:00 pm to 01:00 pm
Venue: 480 University Ave, Suite 300 Toronto, ON M5G 1V2 Boardroom 350
Chronic Diseases and Injuries
City: Toronto
Format: In Person; Webinar

Note: This is an open invitation, and may be forwarded to interested parties.

Sedentary behaviour is defined as any waking behaviour characterized by an energy expenditure ≤1.5 Metabolic Equivalent of Tasks (METs) while in a sitting or reclining posture. Emerging evidence supports the classification of sedentary behaviour as an independent risk factor for adverse health outcomes, separate and distinct from physical inactivity (i.e., not meeting the physical activity guidelines). A growing body of epidemiological and experimental evidence shows elevated chronic disease risk from both acute and chronic exposure to excessive sedentary behaviour. Several biological processes are activated/deactivated in the presence of extended sitting or reclining and provide plausible explanations for these undesirable effects. Intervention strategies at the individual, group, organizational, and policy level require approaches that are different, and perhaps more appealing, than those required to increase physical activity or exercise. Increased efforts to reduce sedentary behaviours while also promoting increased physical activity should continue to be aggressively pursued and will likely yield public health benefits. 

DISCLAIMER: The opinions expressed by speakers and moderators do not necessarily reflect the official policies or views of Public Health Ontario, nor does the mention of trade names, commercial practices, or organizations imply endorsement by Public Health Ontario.

Presenter: Dr. Jean-Philippe Chaput

Dr. Chaput is a researcher at the Children’s Hospital of Eastern Ontario Research Institute and an assistant professor in the Department of Pediatrics at the University of Ottawa. He holds a Junior Research Chair in Healthy Active Living and Obesity Research. His research focuses on obesity prevention and the adoption of a healthy lifestyle. He is also interested in new determinants of obesity such as lack of sleep and mental stress. Dr. Chaput has published more than 130 peer-reviewed scientific articles and has contributed to a large number of conferences around the world. He received several awards for his research, including the International Journal of Obesity New Faculty Award from World Obesity (2014), the New Investigator Award from the Canadian Obesity Network (2011), the New Investigator Award from the International Association for the Study of Obesity (2010) and the Ethan Sims Young Investigator Award from The Obesity Society (2005).   

Public Health Ontario Grand Rounds are approved for continuing medical education from the Royal College of Physicians and Surgeons. For more information, contact


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