Short and medium-term effects of the COVID-19 lockdowns on child and parent accelerometer-measured physical activity and sedentary time: a natural experiment

Russell Jago*, Ruth E Salway, Danielle R House, Robert Walker, Lydia G Collison, Kate M Sansum, Katie Breheny, Thomas Reid, Sarah Churchward, Jo Williams, Charlie E M Foster, William Hollingworth, Frank de Vocht

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

21 Citations (Scopus)

Abstract

Background
The COVID-19 pandemic has resulted in marked impacts on children’s physical activity, with large reductions in moderate-to-vigorous physical activity (MVPA) reported during lockdowns. Previous evidence showed children’s activity levels were lower and sedentary time higher immediately post-COVID lockdown, while there was little change in parental physical activity. We need to know if these patterns persist.

Methods
Active-6 is a natural experiment using repeated cross-sectional data conducted in two waves. Accelerometer data were collected on 393 children aged 10-11 and their parents from 23 schools in Wave 1 (June 2021-December 2021), and 436 children and parents from 27 schools in Wave 2 (January 2022-July 2022). These were compared to a pre-COVID-19 comparator group (March 2017-May 2018) of 1,296 children and parents in the same schools. Mean minutes of accelerometer-measured MVPA and sedentary time were derived for week- and weekend-days and compared across waves via linear multilevel models. We also analysed the date of data collection as a time series, to explore temporal patterns via generalised additive mixed models.

Results
There was no difference in children’s mean MVPA in Wave 2 (weekdays: -2.3 min; 95% CI: -5.9, 1.3 and weekends: 0.6 min; 95% CI: -3.5, 4.6) when compared to the pre-COVID-19 data. Sedentary time remained higher than pre-pandemic by 13.2 min (95% CI:5.3, 21.1) on weekdays. Differences compared to pre-COVID-19 changed over time, with children’s MVPA decreasing over winter, coinciding with COVID-19 outbreaks, and only returning to pre-pandemic levels towards May/June 2022. Parents’ sedentary time and weekday MVPA was similar to pre-COVID-19 levels, with MVPA higher than pre-pandemic by 7.7 min (95% CI: 1.4, 14.0) on weekends.

Conclusion
After an initial drop, children’s MVPA returned to pre-pandemic levels by July 2022, while sedentary time remained higher. Parents’ MVPA remained higher, especially at weekends. The recovery in physical activity is precarious and potentially susceptible to future COVID-19 outbreaks or changes in provision, and so robust measures to protect against future disruptions are needed. Furthermore, many children are still inactive, with only 41% meeting UK physical activity guidelines, and so there is still a need to increase children’s physical activity.
Original languageEnglish
Article number42
Number of pages15
JournalInternational Journal of Behavioral Nutrition and Physical Activity
Volume20
Issue number1
Early online date27 Apr 2023
DOIs
Publication statusE-pub ahead of print - 27 Apr 2023

Bibliographical note

Funding Information:
This project is funded by the National Institute for Health and Care Research [Public Health Research Programme – project 131847]. The data for the comparator study (Wave 0) was funded by the British Heart Foundation (ref: SP 14/4/31123). FDV, WH and RJ are partly funded by the by the National Institute for Health and Care Research Applied Research Collaboration West (NIHR ARC West). RJ is partly supported by the National Institute for Health and Care Research Bristol Biomedical Research Centre. The views and opinions expressed herein are those of the authors and do not necessarily reflect those of the NIHR PHR Programme, NIHR or the Department of Health and Social Care. Funders had no involvement in data analysis, data interpretation or writing of the paper.

Publisher Copyright:
© 2023, The Author(s).

Research Groups and Themes

  • SPS Exercise, Nutrition and Health Sciences
  • HEHP@Bristol

Keywords

  • Physical activity
  • natural experiment
  • children
  • COVID-19
  • parents

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