Association of Sedentary Time with Mortality Independent of Moderate to Vigorous Physical Activity

Sedentary behavior has emerged as a novel health risk factor independent of moderate to vigorous physical activity (MVPA). Previous studies have shown self-reported sedentary time to be associated with mortality; however, no studies have investigated the effect of objectively measured sedentary time...

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Veröffentlicht in:PloS one Jg. 7; H. 6; S. e37696
Hauptverfasser: Koster, Annemarie, Caserotti, Paolo, Patel, Kushang V., Matthews, Charles E., Berrigan, David, Van Domelen, Dane R., Brychta, Robert J., Chen, Kong Y., Harris, Tamara B.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States Public Library of Science 13.06.2012
Public Library of Science (PLoS)
Schlagworte:
Accelerometers
Aged
Biology
Cardiovascular disease
Diabetes
Exercise
Female
Health aspects
Health risk assessment
Health risks
Humans
Male
Medical research
Medicine
Middle Aged
Mortality
Motor Activity
Nutrition
Physical activity
Risk factors
Risk taking
Sedentary Behavior
Social and Behavioral Sciences
Studies
Time measurement
United States > US
Maryland
ISSN:1932-6203, 1932-6203
Online-Zugang:Volltext
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Zusammenfassung:Sedentary behavior has emerged as a novel health risk factor independent of moderate to vigorous physical activity (MVPA). Previous studies have shown self-reported sedentary time to be associated with mortality; however, no studies have investigated the effect of objectively measured sedentary time on mortality independent of MVPA. The objective our study was to examine the association between objectively measured sedentary time and all-cause mortality. 7-day accelerometry data of 1906 participants aged 50 and over from the U.S. nationally representative National Health and Nutrition Examination Survey (NHANES) 2003-2004 were analyzed. All-cause mortality was assessed from the date of examination through December 31, 2006. Over an average follow-up of 2.8 years, there were 145 deaths reported. In a model adjusted for sociodemographic factors, lifestyle factors, multiple morbidities, mobility limitation, and MVPA, participants in third quartile (hazard ratio (HR):4.05; 95%CI:1.55-10.60) and fourth quartile (HR:5.94; 95%CI: 2.49-14.15) of having higher percent sedentary time had a significantly increased risk of death compared to those in the lowest quartile. Our study suggests that sedentary behavior is a risk factor for mortality independent of MVPA. Further investigation, including studies with longer follow-up, is needed to address the health consequences of sedentary behavior.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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Conceived and designed the experiments: AK PC TBH KVP. Analyzed the data: AK KVP. Wrote the paper: AK. Contributed to writing the manuscript: PC TBH KVP. Interpreted the data and reviewed drafts of the paper: PC TBH KVP CEM DB DRV KYC RJB. Processed the data: RJB.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0037696