Validation of a previous-day recall measure of active and sedentary behaviors.

ABSTRACT:

Purpose

A previous-day recall (PDR) may be a less error-prone alternative to traditional questionnaire-based estimates of physical activity and sedentary behavior (e.g., past year), but the validity of the method is not established. We evaluated the validity of an interviewer administered PDR in adolescents (12-17 yr) and adults (18-71 yr).

Methods

In a 7-d study, participants completed three PDR, wore two activity monitors, and completed measures of social desirability and body mass index. PDR measures of active and sedentary time was contrasted against an accelerometer (ActiGraph) by comparing both to a valid reference measure (activPAL) using measurement error modeling and traditional validation approaches.

Results

Age- and sex-specific mixed models comparing PDR t

SUBMITTER: Matthews CE 

PROVIDER: S-EPMC3717193 | biostudies-literature | 2013 Aug

REPOSITORIES: biostudies-literature