New insights into discrepancies between self-reported and accelerometer-measured moderate to vigorous physical activity among women - the mPED trial.

ABSTRACT:

Background

The aims of this report were 1) to describe the duration of moderate to vigorous physical activity (MVPA) and the proportion of participants meeting the recommended criterion of at least 150 min of MVPA per week as measured by the 7 Day Physical Activity Recall Questionnaire (7D-PAR) and accelerometer among women who were enrolled in the mPED trial; 2) to assess the level of agreement of the two measures using a Bland-Altman plot; and 3) to describe the positive and negative predictive values (PPV and NPV, respectively) of meeting the guidelines by calculating the percentage of women meeting the physical activity recommendation by the 7D-PAR who also met this recommendation based on data from the accelerometer.

Methods

Baseline data on duration of MVPA from the mP

SUBMITTER: Fukuoka Y 

PROVIDER: S-EPMC4982411 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature