Validity and Calibration of the Youth Activity Profile.

ABSTRACT:

Purpose

The purpose of this study was to calibrate and cross-validate the Youth Activity Profile (YAP), a self-report tool designed to capture physical activity (PA) and sedentary behaviors (SB) in youth.

Methods

Eight schools in the Midwest part of the U.S. were involved and a total of 291 participants from grades 4-12 agreed to wear an accelerometer (SWA Armband) and complete the YAP in two separate weeks (5-7 days apart). Individual YAP items capture PA behavior during specific segments of the week and these items were combined with temporally matched estimates of moderate-to-vigorous PA (MVPA) and sedentary time from the SWA to enable calibration. Quantile regression procedures yielded YAP prediction algorithms that estimated MVPA at School, MVPA at Out-of-School, MVPA o

SUBMITTER: Saint-Maurice PF 

PROVIDER: S-EPMC4668067 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature