Citation

Zick CD. J. Phys. Act. Health 2014; 11: 1057-1060.

Affiliation

Dept of Family and Consumer Studies, University of Utah, Salt Lake City, UT.

Copyright

(Copyright © 2014, Human Kinetics Publishers)

DOI

10.1123/jpah.2012-0300

PMID

25234787

Abstract

BACKGROUND: Extending Daylight Savings Time (DST) has been identified as a policy intervention that may encourage physical activity. However, there has been little research on the question of if DST encourages adults to be more physically active.

METHODS: Data from residents of Arizona, Colorado, New Mexico, and Utah ages 18-64 who participated in the 2003-2009 American Time Use Survey are used to assess whether DST is associated with increased time spent in moderate-to-vigorous physical activity (MVPA). The analysis capitalizes on the natural experiment created because Arizona does not observe DST.

RESULTS: Both bivariate and multivariate analyses indicate that shifting 1 hour of daylight from morning to evening does not impact MVPA of Americans living in the southwest.

CONCLUSIONS: While DST may affect the choices people make about the timing and location of their sports/recreational activities, the potential for DST to serve as a broad-based intervention that encourages greater sports/recreation participation is not supported by this analysis. Whether this null effect would persist in other climate situations is an open question.

Language: en