Validity of 24-h physical activity recall: physical activity measurement survey.

ABSTRACT:

Purpose

The primary purpose of this study was to evaluate the validity of an interviewer-administered, 24-h physical activity recall (PAR) compared with that of the SenseWear Armband (SWA) for estimation of energy expenditure (EE) and moderate-to-vigorous physical activity (MVPA) in a representative sample of adults. A secondary goal was to compare measurement errors for various demographic subgroups (gender, age, and weight status).

Methods

A sample of 1347 adults (20-71 yr, 786 females) wore an SWA for a single day and then completed a PAR, recalling the previous day's physical activity. The participants each performed two trials on two randomly selected days across a 2-yr time span. The EE and MVPA values for each participant were averaged across the 2 d. Group-level and

SUBMITTER: Welk GJ 

PROVIDER: S-EPMC4138303 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature