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Effects of Varying Epoch Lengths, Wear Time Algorithms, and Activity Cut-Points on Estimates of Child Sedentary Behavior and Physical Activity from Accelerometer Data

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  • Jorge A Banda
  • K Farish Haydel
  • Tania Davila
  • Manisha Desai
  • Susan Bryson
  • William L Haskell
  • Donna Matheson
  • Thomas N Robinson

Abstract

Objective: To examine the effects of accelerometer epoch lengths, wear time (WT) algorithms, and activity cut-points on estimates of WT, sedentary behavior (SB), and physical activity (PA). Methods: 268 7–11 year-olds with BMI ≥ 85th percentile for age and sex wore accelerometers on their right hips for 4–7 days. Data were processed and analyzed at epoch lengths of 1-, 5-, 10-, 15-, 30-, and 60-seconds. For each epoch length, WT minutes/day was determined using three common WT algorithms, and minutes/day and percent time spent in SB, light (LPA), moderate (MPA), and vigorous (VPA) PA were determined using five common activity cut-points. ANOVA tested differences in WT, SB, LPA, MPA, VPA, and MVPA when using the different epoch lengths, WT algorithms, and activity cut-points. Results: WT minutes/day varied significantly by epoch length when using the NHANES WT algorithm (p

Suggested Citation

  • Jorge A Banda & K Farish Haydel & Tania Davila & Manisha Desai & Susan Bryson & William L Haskell & Donna Matheson & Thomas N Robinson, 2016. "Effects of Varying Epoch Lengths, Wear Time Algorithms, and Activity Cut-Points on Estimates of Child Sedentary Behavior and Physical Activity from Accelerometer Data," PLOS ONE, Public Library of Science, vol. 11(3), pages 1-13, March.
    • Handle: RePEc:plo:pone00:0150534
    DOI: 10.1371/journal.pone.0150534
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    Cited by:

    1. Shoo Thien Lee & Jyh Eiin Wong & Geraldine K. L. Chan & Bee Koon Poh, 2021. "Association between Compliance with Movement Behavior Guidelines and Obesity among Malaysian Preschoolers," IJERPH, MDPI, vol. 18(9), pages 1-13, April.
    2. Joachim Bachner & David J. Sturm & Yolanda Demetriou, 2020. "Accelerometer-Measured Physical Activity and Sedentary Behavior Levels and Patterns in Female Sixth Graders: The CReActivity Project," IJERPH, MDPI, vol. 18(1), pages 1-17, December.
    3. Amy V. Creaser & Jennifer Hall & Silvia Costa & Daniel D. Bingham & Stacy A. Clemes, 2022. "Exploring Families’ Acceptance of Wearable Activity Trackers: A Mixed-Methods Study," IJERPH, MDPI, vol. 19(6), pages 1-36, March.

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