Next Article in Journal
Optimized Arrangement of Constant Ambient Air Monitoring Stations in the Kanto Region of Japan
Previous Article in Journal
School Bonds and the Onset of Substance Use among Korean Youth: An Examination of Social Control Theory
Article Menu

Export Article

Open AccessArticle
Int. J. Environ. Res. Public Health 2015, 12(3), 2941-2949; doi:10.3390/ijerph120302941

Association of Light Exposure on Physical Activity and Sedentary Time in Young People

1
Health Behaviour Research Centre, University College London, London WC1E6BT, UK
2
Physical Activity Research Group, Department of Epidemiology and Public Health, University College London, London WC1E6BT, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Received: 22 January 2015 / Revised: 19 February 2015 / Accepted: 5 March 2015 / Published: 10 March 2015
View Full-Text   |   Download PDF [651 KB, uploaded 10 March 2015]

Abstract

Background: To investigate whether light exposure was associated with objectively measured physical activity (PA) and sedentary behaviour in young people. Methods: Participants (n = 229, 46.7% female) were young people (mean 8.8 years [SD ± 2.2]) from the borough of Camden, UK. Daily sedentary time, moderate and vigorous PA (MVPA) and light exposure were measured using a tri-axial accelerometer with an ambient light sensor during the summer. Multiple linear regression models examined associations between average daily light exposure, sedentary time and time in MVPA. Models were repeated investigating weekdays and weekend days separately. Analyses were adjusted for pre-specified covariables, including age, sex, device wear time, ethnic group, school and body fat. Results: There were significant associations between average daily light exposure and time sedentary (β coefficient = −11.2, 95% CI, −19.0 to −3.4) and in MVPA (β coefficient = 3.5, 95% CI, 1.2 to 5.9). Light exposure was significantly associated with weekend sedentary time (β coefficient = −10.0, 95% CI, −17.6, −2.4), weekend MVPA (β coefficient = 3.7, 95% CI, 1.7, 5.7), weekday sedentary time (β coefficient = −15.0, 95% CI, −22.7 to −7.2), but not weekday MVPA (β coefficient = 2.0, 95% CI, −0.5 to 4.5). Conclusion: Average daily light exposure is positively associated with time in MVPA and negatively associated with sedentary time. Increasing daylight exposure may be a useful intervention strategy for promoting physical activity. View Full-Text
Keywords: Accelerometry; sitting time; adolescents; children; outdoors Accelerometry; sitting time; adolescents; children; outdoors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Aggio, D.; Smith, L.; Fisher, A.; Hamer, M. Association of Light Exposure on Physical Activity and Sedentary Time in Young People. Int. J. Environ. Res. Public Health 2015, 12, 2941-2949.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top