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Harefuah. 2013 Jan;152(1):43-8, 58, 57.

[Sitting and cardiovascular morbidity and mortality].

[Article in Hebrew]

Author information

1
Department of Cardiology, Barzilai Medical Center, Ashkelon Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel. Arthur.shiyovich@gmail.com

Abstract

Prolonged sitting and sedentary behavior comprises a major part of the modern lifestyle: at work, leisure (watching television, Internet) and commuting/traveling. Studies have shown that adults spend about half of their time at work and even more sitting. Similarly, a significant part of the leisure time is spent doing sedentary activities usually in front of a screen (TV or a computer). However, current recommendations focus on increasing moderate-to-vigorous physical activity with almost no recommendations relating to sedentary activities. Recent evidence from several research papers showed deleterious relationships of sedentary behavior with cardiovascular risk factors (e.g., obesity, type 2 diabetes mellitus and waist circumference). Furthermore, consistent independent associations have been observed between sitting time/sedentary behaviors and elevated all-cause and cardiovascular disease mortality risk. Generally, these associations have persisted following adjustment for physical activity. Recent emerging findings have shown that breaking up sedentary time potentially has a beneficial impact on cardiovascular health (independent of total sedentary time and moderate-to-vigorous intensity activity). In this article, we review the association between the time spent in various sedentary activities (occupational, leisure and commuting/transportation) and cardiovascular risk factors and cardiovascular morbidity and mortality. In addition, we review the suggested mechanisms that explain the empiric associations.

PMID:
23461028
[Indexed for MEDLINE]

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