A systematic review of mediators of physical activity, nutrition, and screen time in adolescents: Implications for future research and clinical practice

Stephanie Kelly, Janna Stephens, Jacqueline Hoying, Colleen McGovern, Bernadette Mazurek Melnyk, Lisa Militello

Research output: Contribution to journalArticlepeer-review

Abstract

Background Adolescents are not meeting current recommendations for daily physical activity, nutrition, and screentime which has been associated with overweight and obesity. Understanding the mediators that facilitate teens in improving their healthy lifestyle behaviors may be helpful in halting this crisis. Purpose The purpose of this systematic review was to assess published findings regarding mediators of adolescent energy balance behaviors. Method We followed the Institute of Medicine guidelines for completing a systematic review. Discussion Fourteen analyses from 12 studies were included with mediating variables tested for nutrition, physical activity, and screen time. Mediators were identified for all three behaviors and were primarily on the individual level of the social ecological model. Conclusions Combining findings from this and other reviews of mediators can help guide researchers in choosing mediating factors for specific target behaviors.

Original languageEnglish (US)
Pages (from-to)530-548
Number of pages19
JournalNursing outlook
Volume65
Issue number5
DOIs
StatePublished - Sep 2017

Keywords

  • Adolescent
  • Mediators
  • Nutrition
  • Physical activity
  • Screen time
  • Systematic review

ASJC Scopus subject areas

  • Nursing(all)

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