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Relationship between young peoples' sedentary behaviour and biomedical health indicators: a systematic review of

M J M Chinapaw1, K I Proper, J Brug

  • 1Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands. m.chinapaw@vumc.nl

Obesity Reviews : an Official Journal of the International Association for the Study of Obesity
|March 29, 2011
PubMed

Insights

Childhood sedentary behavior, like screen time, shows moderate evidence of an inverse relationship with aerobic fitness. Limiting screen time in youth may help prevent poor fitness levels.

Area of Science:

  • Pediatrics
  • Public Health
  • Exercise Science

Background:

  • Childhood sedentary behavior is a growing public health concern.
  • Understanding its long-term health effects is crucial for preventative strategies.

Purpose of the Study:

  • To systematically review prospective studies on the relationship between childhood sedentary behavior and health indicators.
  • To synthesize evidence regarding the longitudinal associations.

Main Methods:

  • Systematic search of PubMed, EMBASE, PsycInfo, and Cochrane databases (Jan 1989-Apr 2010).
  • Inclusion of 31 papers from 27 distinct cohorts.
  • Independent screening, quality assessment, and data extraction by two reviewers.

Main Results:

  • Insufficient evidence for a link between sedentary time (mainly TV viewing) and body mass index or fat mass.
  • Moderate evidence suggests an inverse relationship between sedentary time and aerobic fitness.
  • Insufficient evidence for associations with blood pressure, blood lipids, or bone mass.

Conclusions:

  • Moderate evidence supports an inverse longitudinal relationship between childhood screen time and aerobic fitness.
  • Recommendations to limit screen time in young people to improve fitness.
  • Further research is needed on other health indicators affected by sedentary behavior.

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