Individualized Relative-Intensity Physical Activity Accelerometer Cut Points.

ABSTRACT:

Purpose

Physical activity (PA) intensity is expressed as either absolute or relative intensity. Absolute intensity refers to the energy required to perform an activity. Relative intensity refers to a level of effort that takes into account how hard an individual is working relative to their maximum capacity. We sought to develop methods for obtaining individualized relative-intensity accelerometer cut points using data from a maximal graded exercise treadmill test (GXT) so that each individual has their own cut point.

Methods

A total of 2363 men and women 38 to 50 yr old from the CARDIA fitness study wore ActiGraph 7164 accelerometers during a maximal GXT and for seven consecutive days in 2005-2006. Using mixed-effects regression models, we regressed accelerometer counts on

SUBMITTER: Siddique J 

PROVIDER: S-EPMC6962549 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature