Knee alignment can help predict sedentary behaviour in children: a pilot study

AIM: The purpose of this pilot study was to introduce knee alignment as a potential predictor of sedentary activity levels in boys and girls. METHODS: Dual energy x-ray absorptiometry (DXA) and anthropometric assessment were conducted on 47 children (21 boys and 26 girls; 5-14 y) and their gender-ma...

Full description

Bibliographic Details
Main Authors: Shultz, S., Kagawa, Masaharu, Fink, P., Hills, A.
Format: Journal Article
Published: 2014
Online Access:http://hdl.handle.net/20.500.11937/55160
_version_ 1848759550474190848
author Shultz, S.
Kagawa, Masaharu
Fink, P.
Hills, A.
author_facet Shultz, S.
Kagawa, Masaharu
Fink, P.
Hills, A.
author_sort Shultz, S.
building Curtin Institutional Repository
collection Online Access
description AIM: The purpose of this pilot study was to introduce knee alignment as a potential predictor of sedentary activity levels in boys and girls. METHODS: Dual energy x-ray absorptiometry (DXA) and anthropometric assessment were conducted on 47 children (21 boys and 26 girls; 5-14 y) and their gender-matched parent. Body Mass Index (BMI) and abdominal-to-height ratio were calculated. Lower extremity alignment was determined by anatomic tibiofemoral angle (TFA) measurements from DXA images. Time spent in moderate-to-vigorous physical activity and sedentary activities were obtained from a parent-reported questionnaire. Stepwise multiple regression analyses identified anthropometric, musculoskeletal, and activity factors of parents and children for predicting total time spent in sedentary behaviour. RESULTS: Weight, total sedentary time of parents and TFA are moderate predictors of sedentary behaviour in children (R2=0.469). When stratifying for gender, TFA and total sedentary time of the parent, as well as waist circumference, are the most useful predictors of sedentary behaviour in boys (R2=0.648). However, weight is the only predictor of sedentary behaviour in girls (R2=0.479). CONCLUSION: Negative associations between TFA and sedentary behaviour indicate that even slight variations in musculoskeletal alignment may influence a child's motivation to be physically active. Although growth and development is complicated by many potentialities, this pilot study suggests that orthopaedic factors should also be considered when evaluating physical activity in children.
first_indexed 2025-11-14T10:01:40Z
format Journal Article
id curtin-20.500.11937-55160
institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T10:01:40Z
publishDate 2014
recordtype eprints
repository_type Digital Repository
spelling curtin-20.500.11937-551602017-08-24T02:17:20Z Knee alignment can help predict sedentary behaviour in children: a pilot study Shultz, S. Kagawa, Masaharu Fink, P. Hills, A. AIM: The purpose of this pilot study was to introduce knee alignment as a potential predictor of sedentary activity levels in boys and girls. METHODS: Dual energy x-ray absorptiometry (DXA) and anthropometric assessment were conducted on 47 children (21 boys and 26 girls; 5-14 y) and their gender-matched parent. Body Mass Index (BMI) and abdominal-to-height ratio were calculated. Lower extremity alignment was determined by anatomic tibiofemoral angle (TFA) measurements from DXA images. Time spent in moderate-to-vigorous physical activity and sedentary activities were obtained from a parent-reported questionnaire. Stepwise multiple regression analyses identified anthropometric, musculoskeletal, and activity factors of parents and children for predicting total time spent in sedentary behaviour. RESULTS: Weight, total sedentary time of parents and TFA are moderate predictors of sedentary behaviour in children (R2=0.469). When stratifying for gender, TFA and total sedentary time of the parent, as well as waist circumference, are the most useful predictors of sedentary behaviour in boys (R2=0.648). However, weight is the only predictor of sedentary behaviour in girls (R2=0.479). CONCLUSION: Negative associations between TFA and sedentary behaviour indicate that even slight variations in musculoskeletal alignment may influence a child's motivation to be physically active. Although growth and development is complicated by many potentialities, this pilot study suggests that orthopaedic factors should also be considered when evaluating physical activity in children. 2014 Journal Article http://hdl.handle.net/20.500.11937/55160 restricted
spellingShingle Shultz, S.
Kagawa, Masaharu
Fink, P.
Hills, A.
Knee alignment can help predict sedentary behaviour in children: a pilot study
title Knee alignment can help predict sedentary behaviour in children: a pilot study
title_full Knee alignment can help predict sedentary behaviour in children: a pilot study
title_fullStr Knee alignment can help predict sedentary behaviour in children: a pilot study
title_full_unstemmed Knee alignment can help predict sedentary behaviour in children: a pilot study
title_short Knee alignment can help predict sedentary behaviour in children: a pilot study
title_sort knee alignment can help predict sedentary behaviour in children: a pilot study
url http://hdl.handle.net/20.500.11937/55160