A Compositional Analysis of Physical Activity, Sedentary Time, and Sleep and Associated Health Outcomes in Children and Adults with Cystic Fibrosis

Mayara S. Bianchim, Melitta A. McNarry, Anne Holland, Narelle S. Cox, Julianna Dreger, Alan R. Barker, Craig A. Williams, Sarah Denford and Kelly A. Mackintosh
Additional contact information
Mayara S. Bianchim: Applied Sports, Technology, Exercise and Medicine Research Centre, Swansea University Bay Campus, Swansea SA1 8EN, UK
Melitta A. McNarry: Applied Sports, Technology, Exercise and Medicine Research Centre, Swansea University Bay Campus, Swansea SA1 8EN, UK
Anne Holland: Department of Allergy, Immunology and Respiratory Medicine, Monash University, Melbourne 3004, Australia
Narelle S. Cox: Department of Allergy, Immunology and Respiratory Medicine, Monash University, Melbourne 3004, Australia
Julianna Dreger: Department of Allergy, Immunology and Respiratory Medicine, Monash University, Melbourne 3004, Australia
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
Kelly A. Mackintosh: Applied Sports, Technology, Exercise and Medicine Research Centre, Swansea University Bay Campus, Swansea SA1 8EN, UK

IJERPH, 2022, vol. 19, issue 9, 1-15

Abstract: This study sought to investigate the association of light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), sedentary time (SED), and sleep with lung function in children and adults with CF. In total, 86 children (41 females; 13.6 ± 2.8 years; FEV 1 % predicted : 86 ± 1%) and 43 adults (21 females; 24.6 ± 4.7 years; FEV 1 % predicted : 63 ± 21%) with CF participated in this study. Wrist-worn accelerometery was used to assess PA, SED and sleep. Compositional linear regression models were conducted following normalisation via isometric log-ratio transformations. Sequential binary partitioning was applied to investigate the impact of reallocating 10 to 30 min between each behaviour on FEV 1 % predicted . A decline in FEV 1 % predicted was predicted with the reallocation of 30 min from MVPA to SED or LPA or sleep to any other behaviour in children (−3.04–−0.005%) and adults (−3.58–−0.005%). Conversely, improvements in FEV 1 % predicted were predicted when 30 min was reallocated to MVPA from LPA or SED in children (0.12–1.59%) and adults (0.77–2.10%), or when 30 min was reallocated to sleep from any other behaviour in both children (0.23–2.56%) and adults (1.08–3.58%). This study supports the importance of MVPA and sleep for maintaining and promoting lung function in people with CF.

Keywords: movement behaviours; moderate-to-vigorous physical activity; lung function; composition; youth; compositional analysis (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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