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Socioecological and biological associations of lower levels of physical activity in 8-year-old children : A 2-year prospective study

Lahti, Amanda LU orcid ; Rosengren, Björn E. LU ; Dencker, Magnus LU ; Nilsson, Jan Åke LU and Karlsson, Magnus K. LU (2019) In BMJ Open Sport & Exercise Medicine 5(1).
Abstract

Objectives: Evaluate if socioecological and biological factors, at the age of 8 years, are associated with lower level of physical activity (PA) 2 years later. 

Method: In a study cohort of 199 children aged 7.8±0.6 years, we used questionnaires and physical measurements to evaluate biological (eg, sex), social (eg, parental PA) and environmental (eg, school settings) factors. Objective PA was measured 2 years later with accelerometers. General PA (GPA) was defined as mean counts per minute (cpm) and moderate to vigorous PA (MVPA) as min/day >3500 cpm. We used analysis of covariance to evaluate if socioecological factors at age 8 are associated with level of PA 2 years later. 

Results: Daily GPA was 690.5±216.6 cpm and... (More)

Objectives: Evaluate if socioecological and biological factors, at the age of 8 years, are associated with lower level of physical activity (PA) 2 years later. 

Method: In a study cohort of 199 children aged 7.8±0.6 years, we used questionnaires and physical measurements to evaluate biological (eg, sex), social (eg, parental PA) and environmental (eg, school settings) factors. Objective PA was measured 2 years later with accelerometers. General PA (GPA) was defined as mean counts per minute (cpm) and moderate to vigorous PA (MVPA) as min/day >3500 cpm. We used analysis of covariance to evaluate if socioecological factors at age 8 are associated with level of PA 2 years later. 

Results: Daily GPA was 690.5±216.6 cpm and the children spent 40.9±18.3 min on MVPA. Female sex is associated with-131.1 (-183.4,-78.7) cpm GPA, each 10 cm shorter body height with-48.7 (-94.8,-26.5), each unit higher body mass index (BMI) with-26.0 (-37.5,-14.5) and allocation to 60 min school PA/week with-73.8 (-131.5,-16.2) compared with allocation to 200 min school PA/week. Female sex is associated with-10.3 (-14.8,-5.7) min of MVPA and each unit higher BMI with-1.9 (-2.9,-0.9) min. 

Conclusion: Female sex, shorter body height and higher BMI are at age 8 years associated with lower level of PA 2 years later. It appears possible to increase PA by daily school PA. 

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
keywords
children, children's health and exercise, physical activity, physical activity promotion in primary care, sedentary
in
BMJ Open Sport & Exercise Medicine
volume
5
issue
1
article number
e000597
publisher
BMJ Publishing Group
external identifiers
  • pmid:31803494
  • scopus:85075597387
ISSN
2055-7647
DOI
10.1136/bmjsem-2019-000597
language
English
LU publication?
yes
id
605adaaf-5fe3-461c-a274-21aa47aa719c
date added to LUP
2019-12-18 11:06:48
date last changed
2025-04-04 01:38:19
@article{605adaaf-5fe3-461c-a274-21aa47aa719c,
  abstract     = {{<p>Objectives: Evaluate if socioecological and biological factors, at the age of 8 years, are associated with lower level of physical activity (PA) 2 years later. </p><p>Method: In a study cohort of 199 children aged 7.8±0.6 years, we used questionnaires and physical measurements to evaluate biological (eg, sex), social (eg, parental PA) and environmental (eg, school settings) factors. Objective PA was measured 2 years later with accelerometers. General PA (GPA) was defined as mean counts per minute (cpm) and moderate to vigorous PA (MVPA) as min/day &gt;3500 cpm. We used analysis of covariance to evaluate if socioecological factors at age 8 are associated with level of PA 2 years later. </p><p>Results: Daily GPA was 690.5±216.6 cpm and the children spent 40.9±18.3 min on MVPA. Female sex is associated with-131.1 (-183.4,-78.7) cpm GPA, each 10 cm shorter body height with-48.7 (-94.8,-26.5), each unit higher body mass index (BMI) with-26.0 (-37.5,-14.5) and allocation to 60 min school PA/week with-73.8 (-131.5,-16.2) compared with allocation to 200 min school PA/week. Female sex is associated with-10.3 (-14.8,-5.7) min of MVPA and each unit higher BMI with-1.9 (-2.9,-0.9) min. </p><p>Conclusion: Female sex, shorter body height and higher BMI are at age 8 years associated with lower level of PA 2 years later. It appears possible to increase PA by daily school PA. </p>}},
  author       = {{Lahti, Amanda and Rosengren, Björn E. and Dencker, Magnus and Nilsson, Jan Åke and Karlsson, Magnus K.}},
  issn         = {{2055-7647}},
  keywords     = {{children; children's health and exercise; physical activity; physical activity promotion in primary care; sedentary}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{1}},
  publisher    = {{BMJ Publishing Group}},
  series       = {{BMJ Open Sport & Exercise Medicine}},
  title        = {{Socioecological and biological associations of lower levels of physical activity in 8-year-old children : A 2-year prospective study}},
  url          = {{http://dx.doi.org/10.1136/bmjsem-2019-000597}},
  doi          = {{10.1136/bmjsem-2019-000597}},
  volume       = {{5}},
  year         = {{2019}},
}