Impaired physical function associated with childhood obesity: how should we intervene?

Tsiros, Margarita D., Buckley, Jonathan D., Olds, Timothy, Howe, Peter R. C., Hills, Andrew P., Walkley, Jeff, Wood, Rachel, Kagawa, Masaharu, Shield, Anthony, Taylor, Lara, Shultz, Sarah P., Grimshaw, Paul N., Grigg, Kaine and Coates, Alison M. (2016) Impaired physical function associated with childhood obesity: how should we intervene?. Childhood Obesity, 12 2: 126-134. doi:10.1089/chi.2015.0123


Author Tsiros, Margarita D.
Buckley, Jonathan D.
Olds, Timothy
Howe, Peter R. C.
Hills, Andrew P.
Walkley, Jeff
Wood, Rachel
Kagawa, Masaharu
Shield, Anthony
Taylor, Lara
Shultz, Sarah P.
Grimshaw, Paul N.
Grigg, Kaine
Coates, Alison M.
Title Impaired physical function associated with childhood obesity: how should we intervene?
Journal name Childhood Obesity   Check publisher's open access policy
ISSN 2153-2176
2153-2168
Publication date 2016-03-23
Year available 2016
Sub-type Article (original research)
DOI 10.1089/chi.2015.0123
Open Access Status Not Open Access
Volume 12
Issue 2
Start page 126
End page 134
Total pages 9
Place of publication New Rochelle, NY, United States
Publisher Mary Ann Liebert
Collection year 2017
Language eng
Formatted abstract
Background: This study examined relationships between adiposity, physical functioning, and physical activity.

Methods: Obese (N = 107) and healthy-weight (N = 132) children aged 10-13 years underwent assessments of percent body fat (%BF, dual energy X-ray absorptiometry); knee extensor strength (KE, isokinetic dynamometry); cardiorespiratory fitness (CRF, peak oxygen uptake by cycle ergometry); physical health-related quality of life (HRQOL); and worst pain intensity and walking capacity [six-minute walk (6MWT)]. Structural equation modelling was used to assess relationships between variables.

Results: Moderate relationships were observed between %BF and (1) 6MWT, (2) KE strength corrected for mass, and (3) CRF relative to mass (r -0.36 to -0.69, p ≤ 0.007). Weak relationships were found between %BF and physical HRQOL (r -0.27, p = 0.008); CRF relative to mass and physical HRQOL (r -0.24, p = 0.003); physical activity and 6MWT (r 0.17, p = 0.004). Squared multiple correlations showed that 29.6% variance in physical HRQOL was explained by %BF, pain, and CRF relative to mass; while 28.0% variance in 6MWT was explained by %BF and physical activity.

Conclusions: It appears that children with a higher body fat percentage have poorer KE strength, CRF, and overall physical functioning. Reducing percent fat appears to be the best target to improve functioning. However, a combined approach to intervention, targeting reductions in body fat percentage, reductions in pain, and improvements in physical activity and CRF may assist physical functioning.
Keyword Reduced physical functioning
Childhood Obesity
Physical activity
Obesity-related disability
Children
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Mater Research Institute-UQ (MRI-UQ)
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