Journal
OBESITY RESEARCH & CLINICAL PRACTICE
Volume 15, Issue 2, Pages 138-144Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.orcp.2021.01.005
Keywords
Obesity; Body mass index; Gait; Cerebral palsy
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This study found limited evidence that BMI substantially influences gait patterns in children with CP, but suggests that it may affect long-distance mobility. Further research strategies are needed to better understand the relationships between adiposity, strength, and function for targeted interventions to improve mobility.
Aim: Obesity causes altered gait patterns in typically developing children, but its effect on gait in children with physical disabilities is largely unknown. This study explores associations between body mass index (BMI), functional mobility and gait in children with cerebral palsy (CP). Method: An observational cross-sectional study was conducted using three-dimensional gait analysis data from 197 children with CP, Gross Motor Functional Classification System (GMFCS) levels I to III. BMI values were categorised using the Centres for Disease Control and Prevention (2000) BMI percentiles, which are specific to age and gender. Regression analyses, with GMFCS level as a covariate, explored associations between BMI category and temporal-spatial, kinematic and functional mobility variables. Analyses included children categorised as healthy weight and overweight/obese only (n = 174), with underweight children excluded (n = 23). Results: 131 children (mean age 10.5 years, SD 3) were categorised as healthy weight and 43 children (mean age 9.6 years, SD 2.5) as overweight or obese. BMI was not associated with most gait variables. Increased double support time, reduced hip extension and increased ankle dorsiflexion were observed in children that were overweight, but most differences were small and of uncertain clinical significance. A lower proportion of overweight children walked independently over 500 m. Conclusion: We found little evidence that BMI has a substantial influence on gait patterns in children with CP but some to suggest it may affect long-distance mobility. Different research strategies are required to improve understanding of relationships between adiposity, strength and function, for effective targeting of interventions to improve mobility. (c) 2021 Asia Oceania Association for the Study of Obesity. Published by Elsevier Ltd. All rights reserved.
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