Relationships between adiposity and postural control in girls during balance tasks of varying difficulty - 14/08/19
, Jacinta Brinsley a, Shylie Mackintosh c, Dominic Thewlis bHighlights |
• | First study of adiposity and postural control exclusively in girls. |
• | Higher BMI may be associated with greater postural sway in challenging postures. |
• | BMI had no relationship with postural sway when adopting easier postures. |
Abstract |
Objective |
This study aimed to examine associations between postural control and body composition in 8–10-year-old girls.
Methods |
An observational cross-sectional study was conducted in 47 girls who were healthy-weight/overweight/obese [body mass index (BMI) percentile]. Girls participated in six postural control conditions of varying difficulty (standing with malleoli touching, tandem stance leading with dominant and non-dominant foot, repeated with eyes open and closed). Postural control outcomes included Centre of Pressure (COP) sway area, COP principal and minor axis length and COP maximum velocity. Data were analysed using linear mixed modelling.
Results |
BMI percentile was positively associated with COP sway area (p=0.034) and principal axis (p=0.030) during tandem stance non-dominant foot leading with eyes closed and COP principal axis during tandem stance dominant foot leading with eyes open (p=0.045). BMI percentile significantly interacted with postural control conditions of varying difficulty to predict postural control outcomes (p≤0.035), notable for tandem stance positions [all four COP sway outcomes in tandem stance non-dominant foot leading eyes closed; tandem stance dominant foot leading with eyes open and closed (two COP sway outcomes each)].
Conclusions |
Girls with greater adiposity may have impairments in postural control, but only during more challenging postural control conditions. In contrast, BMI has little role to play in girls’ postural control in easier postural control conditions (standing with feet together). These findings may suggest potential functional or safety considerations when girls with overweight/obesity are performing demanding postural control tasks (such as during sport or physical activity).
Le texte complet de cet article est disponible en PDF.Abbreviations : BMI, CI, COP
Keywords : Overweight, Obesity, Child, Center of pressure, Sway
Plan
Vol 13 - N° 4
P. 358-364 - juillet 2019 Retour au numéro
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