Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds
Abstract The aim of this study was to examine the interrelationship between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds. The 270 participants were randomly selected from 18 primary and secondary schools in Iceland. Aerobic fitness was assessed by a graded exercise...
Published in: | European Journal of Sport Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2009
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1080/17461390802638149 https://onlinelibrary.wiley.com/doi/pdf/10.1080/17461390802638149 |
id |
crwiley:10.1080/17461390802638149 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1080/17461390802638149 2024-06-02T08:09:25+00:00 Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds Sveinsson, Thorarinn Arngrimsson, Sigurbjorn A. Johannsson, Erlingur 2009 http://dx.doi.org/10.1080/17461390802638149 https://onlinelibrary.wiley.com/doi/pdf/10.1080/17461390802638149 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor European Journal of Sport Science volume 9, issue 3, page 141-150 ISSN 1746-1391 1536-7290 journal-article 2009 crwiley https://doi.org/10.1080/17461390802638149 2024-05-03T10:48:37Z Abstract The aim of this study was to examine the interrelationship between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds. The 270 participants were randomly selected from 18 primary and secondary schools in Iceland. Aerobic fitness was assessed by a graded exercise test on a bicycle ergometer. Body composition was estimated via: logarithm of sum of four skinfolds (log e skinfolds), waist adjusted for height, and body mass index (BMI). Physical activity was measured with Actigraph activity monitors using total activity each day as the physical activity variable. Aerobic fitness was chosen as the primary outcome variable, body composition as the secondary variable, and physical activity as the tertiary variable. All the full models explained a similar proportion of fitness variance for both age groups (45–65%). Among the 15‐year‐olds, log e skinfolds explained a significantly larger proportion of the fitness variance (54%) than waist adjusted for height (29%) and BMI (15%), but all the body composition variables explained a similar proportion of the fitness variance (35–42%) among the 9‐year‐olds. Physical activity explained a smaller proportion (0%) of the unadjusted variance in fitness for the 9‐year‐olds than for the 15‐year‐olds (19%). This group difference became non‐significant (0% vs. 4%) when adjusting for log e skinfolds but remained significant when controlling for waist adjusted for height (0% vs. 15%) and BMI (0% vs. 18%). Gender differences in aerobic fitness after puberty can largely be explained by gender differences in log e skinfolds and physical activity. In conclusion, the interrelationship between fitness, body composition, physical activity, and gender is not the same among 9‐ and 15‐year‐olds. Article in Journal/Newspaper Iceland Wiley Online Library European Journal of Sport Science 9 3 141 150 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The aim of this study was to examine the interrelationship between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds. The 270 participants were randomly selected from 18 primary and secondary schools in Iceland. Aerobic fitness was assessed by a graded exercise test on a bicycle ergometer. Body composition was estimated via: logarithm of sum of four skinfolds (log e skinfolds), waist adjusted for height, and body mass index (BMI). Physical activity was measured with Actigraph activity monitors using total activity each day as the physical activity variable. Aerobic fitness was chosen as the primary outcome variable, body composition as the secondary variable, and physical activity as the tertiary variable. All the full models explained a similar proportion of fitness variance for both age groups (45–65%). Among the 15‐year‐olds, log e skinfolds explained a significantly larger proportion of the fitness variance (54%) than waist adjusted for height (29%) and BMI (15%), but all the body composition variables explained a similar proportion of the fitness variance (35–42%) among the 9‐year‐olds. Physical activity explained a smaller proportion (0%) of the unadjusted variance in fitness for the 9‐year‐olds than for the 15‐year‐olds (19%). This group difference became non‐significant (0% vs. 4%) when adjusting for log e skinfolds but remained significant when controlling for waist adjusted for height (0% vs. 15%) and BMI (0% vs. 18%). Gender differences in aerobic fitness after puberty can largely be explained by gender differences in log e skinfolds and physical activity. In conclusion, the interrelationship between fitness, body composition, physical activity, and gender is not the same among 9‐ and 15‐year‐olds. |
format |
Article in Journal/Newspaper |
author |
Sveinsson, Thorarinn Arngrimsson, Sigurbjorn A. Johannsson, Erlingur |
spellingShingle |
Sveinsson, Thorarinn Arngrimsson, Sigurbjorn A. Johannsson, Erlingur Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds |
author_facet |
Sveinsson, Thorarinn Arngrimsson, Sigurbjorn A. Johannsson, Erlingur |
author_sort |
Sveinsson, Thorarinn |
title |
Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds |
title_short |
Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds |
title_full |
Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds |
title_fullStr |
Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds |
title_full_unstemmed |
Association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds |
title_sort |
association between aerobic fitness, body composition, and physical activity in 9‐ and 15‐year‐olds |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1080/17461390802638149 https://onlinelibrary.wiley.com/doi/pdf/10.1080/17461390802638149 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
European Journal of Sport Science volume 9, issue 3, page 141-150 ISSN 1746-1391 1536-7290 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/17461390802638149 |
container_title |
European Journal of Sport Science |
container_volume |
9 |
container_issue |
3 |
container_start_page |
141 |
op_container_end_page |
150 |
_version_ |
1800755144591147008 |