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RESEARCH PRODUCT
Postural Control Profiles of Typically Developing Children From 6 to 12 Years old: An Approach Using Self-Organizing Maps
Luis-millán GonzálezRoberto Izquierdo-herreraIsrael Villarrasa-sapiñaXavier García MassóIsaac Estevansubject
Self-organizing map03 medical and health sciencesTypically developing0302 clinical medicineCognitive NeuroscienceBiophysicsExperimental and Cognitive PsychologyOrthopedics and Sports Medicine030229 sport sciencesPsychology030217 neurology & neurosurgeryCognitive psychologyPostural controldescription
The purposes of the present study were a) to establish postural control profiles for individuals 6–12 years of age, b) to analyze the participants’ characteristics (age, sex, weight, height, and physical activity) in those profiles, and c) to analyze the influence of visual information in the profiles found. Two hundred and eight typically developing children aged 6–12 years performed two trials in bipedal standing position with eyes open and closed. Feature extraction involved time, frequency, and sway-density plot variables using signals from the center of pressure. A Self-Organizing Map was used to classify and visualize the values of the participants in all the postural control variables tested. A k-means cluster analysis was applied to generate a small number of postural control profiles. The results determined six postural control profiles; three with participants denoting high stability and three considered as low stability profiles. Age, sex, and height were related to the postural control profiles. Boys were more frequently allocated in high stability clusters than girls, while the other factors yielded unclear difference between high and low stability profiles. The analysis of children’s profiles reflecting postural stability should therefore involve more than one factor including the individuals’ age, sex, and height.
year | journal | country | edition | language |
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2020-04-01 | Journal of Motor Learning and Development |