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Physical Activity among U.S. Preschool-Aged Children: Application of Machine Learning Physical Activity Classification to the 2012 National Health and Nutrition Examination Survey National Youth Fitness Survey.

Early childhood is an important development period for establishing healthy physical activity (PA) habits. The objective of this study was to evaluate PA levels in a representative sample of U.S. preschool-aged children. The study sample included 301 participants (149 girls, 3–5 years of age) in the...

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Published in:Children Vol. 9; no. 10; pp. 1433 - 1440
Main Authors: Kwon, Soyang, O'Brien, Megan K., Welch, Sarah B., Honegger, Kyle
Format: research tables/charts Journal Article
Published: MDPI Oct2022
Online Access:View this record in EBSCOhost
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      dt: Oct2022
      vid: 9
      iid: 10
      pid: 97109
      pub: MDPI
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        10.3390/children9101433
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        atl: Physical Activity among U.S. Preschool-Aged Children: Application of Machine Learning Physical Activity Classification to the 2012 National Health and Nutrition Examination Survey National Youth Fitness Survey.
      aug:
        au:
          Kwon, Soyang
          O'Brien, Megan K.
          Welch, Sarah B.
          Honegger, Kyle
        affil: Department of Pediatrics, Northwestern University, 225 E Chicago Ave. Box 157, Chicago, IL 60611, USA
      sug:
        subj:
          Machine Learning United States
          Physical Activity Classification
          National Health Programs
          Nutrition
          Physical Fitness
          Physical Activity Evaluation
          Human
          United States
          Child, Preschool
          Female
          Child
          Accelerometers
          Random Forest
          Algorithms
          Running
          Walking
          Data Analysis Software
          Confidence Intervals
          Descriptive Statistics
          Linear Regression
          Funding Source
          Child, Preschool: 2-5 years
          Child: 6-12 years
          Female
      ab: Early childhood is an important development period for establishing healthy physical activity (PA) habits. The objective of this study was to evaluate PA levels in a representative sample of U.S. preschool-aged children. The study sample included 301 participants (149 girls, 3–5 years of age) in the 2012 U.S. National Health and Examination Survey National Youth Fitness Survey. Participants were asked to wear an ActiGraph accelerometer on their wrist for 7 days. A machine learning random forest classification algorithm was applied to accelerometer data to estimate daily time spent in moderate- and vigorous-intensity PA (MVPA; the sum of minutes spent in running, walking, and other moderate- and vigorous-intensity PA) and total PA (the sum of MVPA and light-intensity PA). We estimated that U.S. preschool-aged children engaged in 28 min/day of MVPA and 361 min/day of total PA, on average. MVPA and total PA levels were not significantly different between males and females. This study revealed that U.S. preschool-aged children engage in lower levels of MVPA and higher levels of total PA than the minimum recommended by the World Health Organization.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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