Physical Activity and Health: Does Sedentary Behavior Make a Difference? by Peter Katzmarzyk, PhD, FACSM (www.acsm.org)

Released in 2018, the Second Edition of the Physical Activity Guidelines for Americans highlights the importance of physical activity for improving a number of health outcomes. These recommendations were largely based upon decades of observational and experimental studies documenting the health effects associated with moderate and vigorous intensity physical activity. However, a new twist in the recommendations and the accompanying 2018 Physical Activity Guidelines Advisory Committee Scientific Report is the consideration of sedentary behavior (i.e. sitting) as having a potential role to play in the association between physical activity and health.

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