Exploring the relationship between baseline physical activity levels and mortality reduction associated with increases in physical activity: a modelling study.

ABSTRACT:

Background

Increasing physical activity (PA) levels among the general adult population of developed nations is important for reducing premature mortality and the burdens of preventable illness. Assessing how effective PA interventions are as health interventions often involves categorising participants as either 'active' or 'sedentary' after the interventions. A model was developed showing that doing this could significantly misestimate the health effect of PA interventions.

Methods

A life table model was constructed combining evidence on baseline PA levels with evidence indicating the non-linear relationship between PA levels and all-cause mortality risks. PA intervention scenarios were modelled which had the same mean increase in PA but different levels of take-up by peopl

SUBMITTER: Minton J 

PROVIDER: S-EPMC3808763 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature