Use of an open-loop system to increase physical activity

James N. Roemmich, Christina L. Lobarinas, Jacob E. Barkley, Tressa M. White, Rocco Paluch, Leonard H. Epstein

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

This study evaluated the effectiveness of an open-loop system that reinforces physical activity with TV watching to increase children's physical activity. Nonoverweight, sedentary boys and girls (8-12 y) were randomized to a group that received feedback of activity counts + reinforcement for physical activity by providing access to television (F+R, n = 20); or to feedback, no reinforcement (Feedback, n = 20) or no feedback, no reinforcement control (Control, n = 21) groups. Children wore an accelerometer with a count display for 4-months with a 1-year follow-up. F+R reduced TV by 68 min/day and TV time was lower than the Feedback (p < .005) and Control (p < .002) groups. TV time of F+R remained 31 min lower (p < .02) than baseline at 1-year. F+R had a 44% increase in physical activity, which was greater than the feedback (p < .04) and control (p < .01) groups. An open-loop system decreases TV viewing and increases physical activity of children for 4-months. TV of the F+R group remained lower at 12 months, suggesting a reduction in screen-time habits.

Original languageEnglish (US)
Pages (from-to)384-398
Number of pages15
JournalPediatric Exercise Science
Volume24
Issue number3
DOIs
StatePublished - Aug 2012

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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  • Cite this

    Roemmich, J. N., Lobarinas, C. L., Barkley, J. E., White, T. M., Paluch, R., & Epstein, L. H. (2012). Use of an open-loop system to increase physical activity. Pediatric Exercise Science, 24(3), 384-398. https://doi.org/10.1123/pes.24.3.384