Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort
OBJECTIVES: Physical activity may be important in deterring the obesity epidemic. This study aimed to determine whether objectively measured physical activity in first year of upper secondary high school predicted changes in body composition over 2 years of follow-up in a cohort of Norwegian adolesc...
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ftpubmed:oai:pubmedcentral.nih.gov:7542926 2023-05-15T17:43:39+02:00 Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort Aars, Nils Abel Beldo, Sigurd Jacobsen, Bjarne Koster Horsch, Alexander Morseth, Bente Emaus, Nina Furberg, Anne-Sofie Grimsgaard, Sameline 2020-10-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7542926/ http://www.ncbi.nlm.nih.gov/pubmed/33033016 https://doi.org/10.1136/bmjopen-2020-036991 en eng BMJ Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7542926/ http://www.ncbi.nlm.nih.gov/pubmed/33033016 http://dx.doi.org/10.1136/bmjopen-2020-036991 © Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. http://creativecommons.org/licenses/by-nc/4.0/ http://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/. CC-BY-NC BMJ Open Public Health Text 2020 ftpubmed https://doi.org/10.1136/bmjopen-2020-036991 2020-10-25T00:23:16Z OBJECTIVES: Physical activity may be important in deterring the obesity epidemic. This study aimed to determine whether objectively measured physical activity in first year of upper secondary high school predicted changes in body composition over 2 years of follow-up in a cohort of Norwegian adolescents (n=431). DESIGN: A longitudinal study of adolescents (mean age of 16 (SD 0.4) at baseline, 60.3% girls) participating in the Fit Futures studies 1 (2010–2011) and 2 (2012–2013). SETTING: All eight upper secondary high schools in two municipalities in Northern Norway. PARTICIPANTS: Students participating in both studies and under the age of 18 at baseline and with valid measurement of physical activity at baseline and body composition in both surveys. PRIMARY AND SECONDARY OUTCOMES: Change in objectively measured body mass index and waist circumference and change in dual-energy X-ray absorptiometry measured fat mass index, lean mass index (LMI) and appendicular LMI (aLMI) between baseline and follow-up. RESULTS: At baseline, boys had significantly higher physical activity volume (p=0.01) and spent on average of 6.4 (95% CI 2.1 to 10.6) more minutes in moderate-to-vigorous physical activity (MVPA) than girls (p<0.01). In girls, multivariate regression analyses showed that more sedentary time was negatively associated with changes in LMI (p<0.01) and aLMI (p<0.05), whereas more light activity had opposite effects on these measures (p<0.01 and p<0.05, respectively). No significant associations between measures of baseline physical activity and changes in body composition parameters were observed in boys. CONCLUSIONS: In this cohort of Norwegian adolescents, sedentary and light physical activity was associated with changes in LMI and aLMI in girls, but not boys. Minutes spent in MVPA in first year of upper secondary high school was not associated with changes in measures of body composition in neither sex after 2 years. Text Northern Norway Tromsø PubMed Central (PMC) Norway Tromsø BMJ Open 10 10 e036991 |
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Public Health Aars, Nils Abel Beldo, Sigurd Jacobsen, Bjarne Koster Horsch, Alexander Morseth, Bente Emaus, Nina Furberg, Anne-Sofie Grimsgaard, Sameline Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort |
topic_facet |
Public Health |
description |
OBJECTIVES: Physical activity may be important in deterring the obesity epidemic. This study aimed to determine whether objectively measured physical activity in first year of upper secondary high school predicted changes in body composition over 2 years of follow-up in a cohort of Norwegian adolescents (n=431). DESIGN: A longitudinal study of adolescents (mean age of 16 (SD 0.4) at baseline, 60.3% girls) participating in the Fit Futures studies 1 (2010–2011) and 2 (2012–2013). SETTING: All eight upper secondary high schools in two municipalities in Northern Norway. PARTICIPANTS: Students participating in both studies and under the age of 18 at baseline and with valid measurement of physical activity at baseline and body composition in both surveys. PRIMARY AND SECONDARY OUTCOMES: Change in objectively measured body mass index and waist circumference and change in dual-energy X-ray absorptiometry measured fat mass index, lean mass index (LMI) and appendicular LMI (aLMI) between baseline and follow-up. RESULTS: At baseline, boys had significantly higher physical activity volume (p=0.01) and spent on average of 6.4 (95% CI 2.1 to 10.6) more minutes in moderate-to-vigorous physical activity (MVPA) than girls (p<0.01). In girls, multivariate regression analyses showed that more sedentary time was negatively associated with changes in LMI (p<0.01) and aLMI (p<0.05), whereas more light activity had opposite effects on these measures (p<0.01 and p<0.05, respectively). No significant associations between measures of baseline physical activity and changes in body composition parameters were observed in boys. CONCLUSIONS: In this cohort of Norwegian adolescents, sedentary and light physical activity was associated with changes in LMI and aLMI in girls, but not boys. Minutes spent in MVPA in first year of upper secondary high school was not associated with changes in measures of body composition in neither sex after 2 years. |
format |
Text |
author |
Aars, Nils Abel Beldo, Sigurd Jacobsen, Bjarne Koster Horsch, Alexander Morseth, Bente Emaus, Nina Furberg, Anne-Sofie Grimsgaard, Sameline |
author_facet |
Aars, Nils Abel Beldo, Sigurd Jacobsen, Bjarne Koster Horsch, Alexander Morseth, Bente Emaus, Nina Furberg, Anne-Sofie Grimsgaard, Sameline |
author_sort |
Aars, Nils Abel |
title |
Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort |
title_short |
Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort |
title_full |
Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort |
title_fullStr |
Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort |
title_full_unstemmed |
Association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the Tromsø study fit futures cohort |
title_sort |
association between objectively measured physical activity and longitudinal changes in body composition in adolescents: the tromsø study fit futures cohort |
publisher |
BMJ Publishing Group |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7542926/ http://www.ncbi.nlm.nih.gov/pubmed/33033016 https://doi.org/10.1136/bmjopen-2020-036991 |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
Northern Norway Tromsø |
genre_facet |
Northern Norway Tromsø |
op_source |
BMJ Open |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7542926/ http://www.ncbi.nlm.nih.gov/pubmed/33033016 http://dx.doi.org/10.1136/bmjopen-2020-036991 |
op_rights |
© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. http://creativecommons.org/licenses/by-nc/4.0/ http://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/. |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1136/bmjopen-2020-036991 |
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BMJ Open |
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10 |
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