Equating accelerometer estimates among youth: The Rosetta Stone 2.

ABSTRACT:

Objectives

Different accelerometer cutpoints used by different researchers often yields vastly different estimates of moderate-to-vigorous intensity physical activity (MVPA). This is recognized as cutpoint non-equivalence (CNE), which reduces the ability to accurately compare youth MVPA across studies. The objective of this research is to develop a cutpoint conversion system that standardizes minutes of MVPA for six different sets of published cutpoints.

Design

Secondary data analysis.

Methods

Data from the International Children's Accelerometer Database (ICAD; Spring 2014) consisting of 43,112 Actigraph accelerometer data files from 21 worldwide studies (children 3-18 years, 61.5% female) were used to develop prediction equations for six sets of published cutpoints.

SUBMITTER: Brazendale K 

PROVIDER: S-EPMC5381708 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature