Static and dynamic foot characteristics in children aged 1-13 years

NewsBot · Nov 29, 2011

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Static and dynamic foot characteristics in children aged 1-13 years: A cross-sectional study.
Müller S, Carlsohn A, Müller J, Baur H, Mayer F.
Gait Posture. 2011 Nov 23. [Epub ahead of print]

The aim of this study was to acquire static and dynamic foot geometry and loading in childhood, and to establish data for age groups of a population of 1-13 year old infants and children. A total of 10,382 children were recruited and 7788 children (48% males and 52% females) were finally included into the data analysis. For static foot geometry foot length and foot width were quantified in a standing position. Dynamic foot geometry and loading were assessed during walking on a walkway with self selected speed (Novel Emed X, 100Hz, 4sensors/cm(2)). Contact area (CA), peak pressure (PP), force time integral (FTI) and the arch index were calculated for the total, fore-, mid- and hindfoot. Results show that most static and dynamic foot characteristics change continuously during growth and maturation. Static foot length and width increased with age from 13.1±0.8cm (length) and 5.7±0.4cm (width) in the youngest to 24.4±1.5cm (length) and 8.9±0.6cm (width) in the oldest. A mean walking velocity of 0.94±0.25m/s was observed. Arch-index ranged from 0.32±0.04 [a.u.] in the one-year old to 0.21±0.13 [a.u.] in the 5-year olds and remains constant afterwards. This study provides data for static and dynamic foot characteristics in children based on a cohort of 7788 subjects. Static and dynamic foot measures change differently during growth and maturation. Dynamic foot measurements provide additional information about the children's foot compared to static measures
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