Concurrent and Convergent Validity of a Single, Brief Question for Physical Activity Assessment.

ABSTRACT: An extensive number of self-reported methods for physical activity (PA) measurement are available, including short and long recall questionnaires ranging from a few to tens of questions. Due to the fact that simple, time-saving methods could be more practical and desirable for use in a busy clinical context, as well as in public health surveys, we evaluated how a single-item question might be a useful and cost-effective method for assessing compliance with PA guidelines. Using multiple receiver operating characteristics (ROC), we assessed the classification performance of a single brief question, employing the short version of the International Physical Activity Questionnaire as criterion instrument, in a total of 55,950 people (30,601 women and 25,349 men). Both those who practice PA almo

SUBMITTER: Moreno-Llamas A 

PROVIDER: S-EPMC7143290 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature