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September 5, 2025ChildrenOpen Access

Body Mass Index Changes from Before to 3 Years After the COVID-19 Lockdown: A Retrospective Longitudinal Study in a Single Elementary School

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Authors

ICIee Ho ChoiEPEsther ParkELEun Jee Lee

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Overview

Retrospective longitudinal study assesses BMI shifts in children, indicating varied obesity trends post-lockdown.

Key Points

  • BMI Z-score increased significantly in students post-lockdown, highlighting a public health concern.
  • First graders showed a significant decrease in BMI Z-score, while other grades reported increases, especially in third grade.
  • Longitudinal and cross-sectional studies reveal inconsistent obesity trends across different grades post-lockdown.
  • Tailored strategies for managing obesity in children post-lockdown are essential to address emerging metabolic risks.

Cite This Study

Choi et al. (2025) studied this question.

synapsesocial.com/papers/68c239a3b210217d6477ce79https://doi.org/10.3390/children12091157
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Regional Implications of the COVID-19 Pandemic on Childhood Obesity Prevalence, Denver, Colorado, 2019-2022.2025
  2. 2Recalling Perceptions, Emotions, Behaviours, and Changes in Weight Status Among University Students After the Pandemic Experience2025 · 3 citations
  3. 3Trajectories of BMI Before, During and Following the COVID-19 Pandemic among Participants in the MACS/WIHS Combined Cohort Study2025
  4. 4Post-acute dyslipidemia and abnormal BMI in children and adolescents with COVID-19: An EHR Cohort Study from the RECOVER Initiative2025
  5. 5A longitudinal study of four-year changes in physical fitness among university students before and after COVID-19: 2019–20222025