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Article: Physical Fitness and Body Mass Index Status of Hong Kong Primary Schoolchildren across the COVID-19 Pandemic, before and after School Closure
Title | Physical Fitness and Body Mass Index Status of Hong Kong Primary Schoolchildren across the COVID-19 Pandemic, before and after School Closure |
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Authors | |
Keywords | BMI children COVID-19 obesity physical fitness school closure underweight |
Issue Date | 30-Sep-2023 |
Publisher | Elsevier |
Citation | The Journal of Pediatrics, 2024, v. 264 How to Cite? |
Abstract | AbstractObjective: To determine whether health-related physical fitness and body mass index (BMI) status differed before and after school closure from the COVID-19 pandemic in a population-based cohort of Hong Kong primary schoolchildren. Study design: We examined the BMI z score, BMI status, and physical fitness z scores including (i) upper limb muscle strength, (ii) 1-minute sit-up test, (iii) sit-and-reach test, and (iv) endurance run tests, among 3 epochs: prepandemic (September 2018-August 2019), before school closure (September 2019-January 2020), and partial school reopening (September 2021-August 2022), using a repeated cross-sectional approach. Results: A total of 137 752 primary schoolchildren aged 6-12 years were recruited over 3 academic years. Obesity increased significantly from 25.9% in 2018/19 to 31.0% in 2021/22, while underweight increased slightly from 6.1% to 6.5%. All tested parameters were adversely affected by the pandemic. The negative trend over time was far more pronounced in all 4 physical fitness scores in the underweight group, although performance in handgrip strength had no significance between 2018/19 and 2021/22. Conclusions: Schoolchildren who are both underweight and overweight/obese are vulnerable to adverse changes in physical fitness during the COVID-19 pandemic. To eliminate the negative health and fitness outcomes, it is urgent to develop strategies for assisting schoolchildren in achieving a healthy weight, especially in the postpandemic era. Keywords: BMI; COVID-19; children; obesity; physical fitness; school closure; underweight. |
Persistent Identifier | http://hdl.handle.net/10722/339222 |
ISSN | 2021 Impact Factor: 6.314 2020 SCImago Journal Rankings: 1.227 |
DC Field | Value | Language |
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dc.contributor.author | Yip, Ka-man | - |
dc.contributor.author | Wong, Sam W.S | - |
dc.contributor.author | So, Hung-kwan | - |
dc.contributor.author | Tso, Wan Yee Winnie | - |
dc.contributor.author | Siu, Ming Fai Parco | - |
dc.contributor.author | Wong, Ian Chi Kei | - |
dc.contributor.author | Yam, Jason C | - |
dc.contributor.author | Kwan, Mike Y.W | - |
dc.contributor.author | Lum, Terry Yat Sang | - |
dc.contributor.author | Louie, Lobo H.T | - |
dc.contributor.author | Lee, Albert | - |
dc.contributor.author | Wong, Wilfred Hing Sang | - |
dc.contributor.author | Ip, Patrick | - |
dc.date.accessioned | 2024-03-11T10:34:56Z | - |
dc.date.available | 2024-03-11T10:34:56Z | - |
dc.date.issued | 2023-09-30 | - |
dc.identifier.citation | The Journal of Pediatrics, 2024, v. 264 | - |
dc.identifier.issn | 0022-3476 | - |
dc.identifier.uri | http://hdl.handle.net/10722/339222 | - |
dc.description.abstract | <h2>Abstract</h2><p><strong>Objective: </strong>To determine whether health-related physical fitness and body mass index (BMI) status differed before and after school closure from the COVID-19 pandemic in a population-based cohort of Hong Kong primary schoolchildren.</p><p><strong>Study design: </strong>We examined the BMI z score, BMI status, and physical fitness z scores including (i) upper limb muscle strength, (ii) 1-minute sit-up test, (iii) sit-and-reach test, and (iv) endurance run tests, among 3 epochs: prepandemic (September 2018-August 2019), before school closure (September 2019-January 2020), and partial school reopening (September 2021-August 2022), using a repeated cross-sectional approach.</p><p><strong>Results: </strong>A total of 137 752 primary schoolchildren aged 6-12 years were recruited over 3 academic years. Obesity increased significantly from 25.9% in 2018/19 to 31.0% in 2021/22, while underweight increased slightly from 6.1% to 6.5%. All tested parameters were adversely affected by the pandemic. The negative trend over time was far more pronounced in all 4 physical fitness scores in the underweight group, although performance in handgrip strength had no significance between 2018/19 and 2021/22.</p><p><strong>Conclusions: </strong>Schoolchildren who are both underweight and overweight/obese are vulnerable to adverse changes in physical fitness during the COVID-19 pandemic. To eliminate the negative health and fitness outcomes, it is urgent to develop strategies for assisting schoolchildren in achieving a healthy weight, especially in the postpandemic era.</p><p><strong>Keywords: </strong>BMI; COVID-19; children; obesity; physical fitness; school closure; underweight.</p> | - |
dc.language | eng | - |
dc.publisher | Elsevier | - |
dc.relation.ispartof | The Journal of Pediatrics | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | BMI | - |
dc.subject | children | - |
dc.subject | COVID-19 | - |
dc.subject | obesity | - |
dc.subject | physical fitness | - |
dc.subject | school closure | - |
dc.subject | underweight | - |
dc.title | Physical Fitness and Body Mass Index Status of Hong Kong Primary Schoolchildren across the COVID-19 Pandemic, before and after School Closure | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jpeds.2023.113729 | - |
dc.identifier.scopus | eid_2-s2.0-85173872582 | - |
dc.identifier.volume | 264 | - |
dc.identifier.issnl | 0022-3476 | - |