Mortality Benefits for Replacing Sitting Time with Different Physical Activities.

ABSTRACT:

Purpose

Prolonged sitting has emerged as a risk factor for early mortality, but the extent of benefit realized by replacing sitting time with exercise or activities of everyday living (i.e., nonexercise activities) is not known.

Methods

We prospectively followed 154,614 older adults (59-82 yr) in the National Institutes of Health-AARP Diet and Health Study who reported no major chronic diseases at baseline and reported detailed information about sitting time, exercise, and nonexercise activities. Proportional hazard models were used to estimate adjusted hazard ratios and 95% confidence intervals (HR (95% confidence interval)) for mortality. An isotemporal modeling approach was used to estimate associations for replacing sitting time with specific types of physical activity,

SUBMITTER: Matthews CE 

PROVIDER: S-EPMC4515413 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature