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Sleep, Sedentary Time and Physical Activity Levels in Children with Cystic Fibrosis

Author

Listed:
  • Mayara S. Bianchim

    (Applied Sports, Technology, Exercise and Medicine Research Centre, Bay Campus, Swansea, Wales SA1 8EN, UK)

  • Melitta A. McNarry

    (Applied Sports, Technology, Exercise and Medicine Research Centre, Bay Campus, Swansea, Wales SA1 8EN, UK)

  • Alan R. Barker

    (Children’s Health and Exercise Research Centre, University of Exeter, Exeter EX1 2LU, UK)

  • Craig A. Williams

    (Children’s Health and Exercise Research Centre, University of Exeter, Exeter EX1 2LU, UK)

  • Sarah Denford

    (Children’s Health and Exercise Research Centre, University of Exeter, Exeter EX1 2LU, UK)

  • Anne E. Holland

    (Respiratory Research@Alfred, Department of Immunology, Monash University, Melbourne, VIC 3004, Australia
    Institute for Breathing and Sleep, Melbourne, VIC 3004, Australia
    Physiotherapy, Alfred Health, Melbourne, VIC 3004, Australia)

  • Narelle S. Cox

    (Respiratory Research@Alfred, Department of Immunology, Monash University, Melbourne, VIC 3004, Australia
    Institute for Breathing and Sleep, Melbourne, VIC 3004, Australia)

  • Julianna Dreger

    (Respiratory Research@Alfred, Department of Immunology, Monash University, Melbourne, VIC 3004, Australia)

  • Rachel Evans

    (Paediatric Department, Morriston Hospital, Swansea SA6 6NL, UK)

  • Lena Thia

    (Department of Paediatric Respiratory Medicine and Cystic Fibrosis Unit, Noah’s Ark Children’s Hospital for Wales, Cardiff CF14 4XW, UK)

  • Kelly A. Mackintosh

    (Applied Sports, Technology, Exercise and Medicine Research Centre, Bay Campus, Swansea, Wales SA1 8EN, UK)

Abstract

The aim of this study was to compare the use of generic and cystic fibrosis (CF)-specific cut-points to assess movement behaviours in children and adolescents with CF. Physical activity (PA) was assessed for seven consecutive days using a non-dominant wrist-worn ActiGraph GT9X in 71 children and adolescents (36 girls; 13.5 ± 2.9 years) with mild CF. CF-specific and generic Euclidean norm minus one (ENMO) cut-points were used to determine sedentary time (SED), sleep, light physical activity (LPA), moderate physical activity and vigorous physical activity. The effect of using a CF-specific or generic cut-point on the relationship between PA intensities and lung function was determined. Movement behaviours differed significantly according to the cut-point used, with the CF-specific cut-points resulting in less time asleep (−31.4 min; p < 0.01) and in LPA (−195.1 min; p < 0.001), and more SED and moderate-to-vigorous PA (159.3 and 67.1 min, respectively; both p < 0.0001) than the generic thresholds. Lung function was significantly associated with LPA according to the CF-specific cut-points (r = 0.52; p = 0.04). Thresholds developed for healthy populations misclassified PA levels, sleep and SED in children and adolescents with CF. This discrepancy affected the relationship between lung function and PA, which was only apparent when using the CF-specific cut-points. Promoting LPA seems a promising strategy to enhance lung function in children and adolescents with CF.

Suggested Citation

  • Mayara S. Bianchim & Melitta A. McNarry & Alan R. Barker & Craig A. Williams & Sarah Denford & Anne E. Holland & Narelle S. Cox & Julianna Dreger & Rachel Evans & Lena Thia & Kelly A. Mackintosh, 2022. "Sleep, Sedentary Time and Physical Activity Levels in Children with Cystic Fibrosis," IJERPH, MDPI, vol. 19(12), pages 1-10, June.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:12:p:7133-:d:835893
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    1. Mayara S. Bianchim & Melitta A. McNarry & Anne Holland & Narelle S. Cox & Julianna Dreger & Alan R. Barker & Craig A. Williams & Sarah Denford & Kelly A. Mackintosh, 2022. "A Compositional Analysis of Physical Activity, Sedentary Time, and Sleep and Associated Health Outcomes in Children and Adults with Cystic Fibrosis," IJERPH, MDPI, vol. 19(9), pages 1-15, April.
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