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Active Voice: Sedentary Behavior in Old Age is Rooted in Midlife — Intervene Early!

from By Julianne van der Berg, M.Sc., and Annemarie Koster, Ph.D.


Annemarie Koster, Ph.D.

Julianne van der Berg, M.Sc
Viewpoints presented in SMB commentaries reflect opinions of the authors and do not necessarily reflect positions or policies of ACSM.

Julianne D. van der Berg, M.Sc., studied health sciences at VU University Amsterdam, The Netherlands. After graduation, she joined the Exercise, Nutrition and Health Sciences department at the University of Bristol (UK), where she worked on projects focusing on physical activity, physical environment and health. Since 2012, she has been working at the Maastricht University as a Ph.D. candidate, investigating effects of leading a sedentary lifestyle on type 2 diabetes and its complications.

Annemarie Koster, Ph.D., is an assistant professor in the Department of Social Medicine at Maastricht University in the Netherlands. As an epidemiologist, her research focus centers on understanding the causes and consequences of physical (in)activity and obesity in old age. She has a strong background in physical activity assessment by accelerometry, with a particular interest in the health effects of sedentary behavior.

This commentary presents Ms. van der Berg’s and Dr. Koster’s views on the topic of a research article which they and their colleagues had published in the July 2014 issue of Medicine & Science in Sports & Exercise® (MSSE).


In 2011, ACSM published an online brochure titled “Reducing Sedentary Behaviors: Sitting Less and Moving More” that reported on the harmful effects of too much sitting. Sitting or other sedentary behaviors such as lying down, watching TV and using the computer have been studied extensively during the last several years. Studies suggest that even when you exercise regularly, prolonged periods of sedentary time are a risk factor for cardiovascular disease, type 2 diabetes and even mortality. What is not well-understood yet is what factors influence the amount of sedentary time. more


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