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Children's physical activity: using accelerometers to validate a parent proxy record.

Julie M Bender1, Ross C Brownson, Michael B Elliott

  • 1Transtria, LLC, St. Louis, MO 63139, USA. julie@transtria.com

Medicine and Science in Sports and Exercise
|August 25, 2005
PubMed
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Parent proxy records for children's physical activity show poor agreement with accelerometers, with parents overreporting activity. Further research is needed for accurate, cost-effective child activity measurement tools.

Area of Science:

  • Pediatric physical activity assessment
  • Objective vs. subjective measurement validation

Background:

  • Accurate measurement of children's physical activity is crucial for public health.
  • Parent proxy records are a potential low-cost method but require validation.

Purpose of the Study:

  • To validate a parent proxy record against accelerometer data for children's physical activity.
  • To assess the accuracy of parent-reported activity duration and intensity.

Main Methods:

  • Sixty-five parent/child dyads participated.
  • Parents recorded child activity (duration, intensity) for 7 days.
  • Children simultaneously wore CSA Model 7164 accelerometers.

Main Results:

  • Overall child activity levels were low (<3 METs).

Related Experiment Videos

  • Poor to fair agreement was found between parent proxy records and accelerometer data.
  • Parents consistently overreported their child's activity levels.

    • Conclusions:

    • The developed parent proxy record lacks sufficient validity for measuring children's physical activity.
    • There is an ongoing need for inexpensive and easy-to-use tools for community-based physical activity interventions in children.