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

, , Fink, Philip, & Hills, Andrew (2014) Knee alignment can help predict sedentary behaviour in children: a pilot study. Journal of Sports Medicine and Physical Fitness, 54(5), pp. 631-635.

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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

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2 citations in Scopus
1 citations in Web of Science®
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ID Code: 88525
Item Type: Contribution to Journal (Journal Article)
Refereed: Yes
Measurements or Duration: 5 pages
ISSN: 0022-4707
Pure ID: 32739807
Divisions: Past > QUT Faculties & Divisions > Faculty of Health
Past > Institutes > Institute of Health and Biomedical Innovation
Past > Research Centres > Centre for Health Research
Copyright Owner: Copyright © 2014 Edizioni Minerva Medica
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Deposited On: 12 Nov 2015 04:17
Last Modified: 16 Apr 2024 07:23