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Article: The reciprocal relationship between body mass index categories and physical fitness: A 4‐year prospective cohort study of 20 000 Chinese children

TitleThe reciprocal relationship between body mass index categories and physical fitness: A 4‐year prospective cohort study of 20 000 Chinese children
Authors
Keywordsbody mass index
physical fitness
prospective cohort study
reciprocal relationship
Issue Date2020
PublisherWiley-Blackwell Publishing Ltd. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)2047-6310
Citation
Pediatric Obesity, 2020, v. 15 n. 9, article no. e12646 How to Cite?
AbstractIntroduction: Body mass index (BMI) categories and physical fitness are associated but the reciprocal relationship between BMI categories and physical fitness has not been investigated. This study aims to investigate the longitudinal reciprocal relationship between BMI categories and physical fitness. Methods: This is a population-based 4-year cohort study in 48 elementary schools. Children aged 6 to 9 years at recruitment were included. BMI categories and physical fitness including handgrip strength, core muscle endurance, flexibility, and cardiorespiratory fitness were measured using standard equipment and protocol. Results: Among 26 392 eligible participants, 19 504 (73.9%) were successfully followed for 3 years. Baseline obesity prevalence was 5.9%. After 3 years, those who were unfit at baseline had an increased risk of obesity (risk ratio [RR] 1.41, 95% CI 1.16-1.71, P < .001) and those who were fit at baseline had a decreased risk of obesity (RR 0.69, 95% CI 0.60-0.80, P < .001) compared with moderately fit children. Furthermore, improvement of fitness predicted decreased risk of obesity. Similarly, normal body weight also predicted better physical fitness. The path analysis confirmed a strong reciprocal relationship between physical fitness and obesity. Conclusions: Better physical fitness was prospectively associated with normal weight and vice versa. Physically fit children were more likely to maintain a healthy weight and those with a healthy weight were more likely to be physically fit, which is important for healthy development.
Persistent Identifierhttp://hdl.handle.net/10722/284588
ISSN
2020 SCImago Journal Rankings: 1.226
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHo, FK-
dc.contributor.authorSo, HK-
dc.contributor.authorWong, RS-
dc.contributor.authorTung, KTS-
dc.contributor.authorLouie, LHT-
dc.contributor.authorTung, J-
dc.contributor.authorMirpuri, S-
dc.contributor.authorChow, B-
dc.contributor.authorWong, WHS-
dc.contributor.authorLee, A-
dc.contributor.authorIp, P-
dc.date.accessioned2020-08-07T08:59:47Z-
dc.date.available2020-08-07T08:59:47Z-
dc.date.issued2020-
dc.identifier.citationPediatric Obesity, 2020, v. 15 n. 9, article no. e12646-
dc.identifier.issn2047-6302-
dc.identifier.urihttp://hdl.handle.net/10722/284588-
dc.description.abstractIntroduction: Body mass index (BMI) categories and physical fitness are associated but the reciprocal relationship between BMI categories and physical fitness has not been investigated. This study aims to investigate the longitudinal reciprocal relationship between BMI categories and physical fitness. Methods: This is a population-based 4-year cohort study in 48 elementary schools. Children aged 6 to 9 years at recruitment were included. BMI categories and physical fitness including handgrip strength, core muscle endurance, flexibility, and cardiorespiratory fitness were measured using standard equipment and protocol. Results: Among 26 392 eligible participants, 19 504 (73.9%) were successfully followed for 3 years. Baseline obesity prevalence was 5.9%. After 3 years, those who were unfit at baseline had an increased risk of obesity (risk ratio [RR] 1.41, 95% CI 1.16-1.71, P < .001) and those who were fit at baseline had a decreased risk of obesity (RR 0.69, 95% CI 0.60-0.80, P < .001) compared with moderately fit children. Furthermore, improvement of fitness predicted decreased risk of obesity. Similarly, normal body weight also predicted better physical fitness. The path analysis confirmed a strong reciprocal relationship between physical fitness and obesity. Conclusions: Better physical fitness was prospectively associated with normal weight and vice versa. Physically fit children were more likely to maintain a healthy weight and those with a healthy weight were more likely to be physically fit, which is important for healthy development.-
dc.languageeng-
dc.publisherWiley-Blackwell Publishing Ltd. The Journal's web site is located at http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)2047-6310-
dc.relation.ispartofPediatric Obesity-
dc.rightsPreprint This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Postprint This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.-
dc.subjectbody mass index-
dc.subjectphysical fitness-
dc.subjectprospective cohort study-
dc.subjectreciprocal relationship-
dc.titleThe reciprocal relationship between body mass index categories and physical fitness: A 4‐year prospective cohort study of 20 000 Chinese children-
dc.typeArticle-
dc.identifier.emailSo, HK: hkso@hku.hk-
dc.identifier.emailWong, RS: rosawong@hku.hk-
dc.identifier.emailTung, J: tungylj@hku.hk-
dc.identifier.emailWong, WHS: whswong@hku.hk-
dc.identifier.emailIp, P: patricip@hku.hk-
dc.identifier.authorityIp, P=rp01337-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/ijpo.12646-
dc.identifier.pmid32395902-
dc.identifier.scopuseid_2-s2.0-85084505130-
dc.identifier.hkuros311632-
dc.identifier.volume15-
dc.identifier.issue9-
dc.identifier.spagearticle no. e12646-
dc.identifier.epagearticle no. e12646-
dc.identifier.isiWOS:000531600300001-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl2047-6302-

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