Reliability of center of pressure measures for assessing the development of sitting postural control through the stages of sitting
Autor: | Anastasia Kyvelidou, Nicholas Stergiou, Jordan Wickstrom |
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Rok vydání: | 2017 |
Předmět: |
Male
030506 rehabilitation medicine.medical_specialty Posture Biophysics Signs and symptoms Sitting Approximate entropy Article Postural control Cerebral palsy 03 medical and health sciences Child Development 0302 clinical medicine Center of pressure (terrestrial locomotion) Pressure Postural Balance Humans Medicine Orthopedics and Sports Medicine business.industry Cerebral Palsy Rehabilitation Infant Reproducibility of Results medicine.disease Child development Nonlinear Dynamics Case-Control Studies Child Preschool Physical therapy Female 0305 other medical science business 030217 neurology & neurosurgery |
Zdroj: | Gait & Posture. 56:8-13 |
ISSN: | 0966-6362 |
Popis: | Cerebral palsy (CP) impairs an individual’s ability to move and control one’s posture. Unfortunately, the signs and symptoms of CP may not be apparent before age two. Evaluating sitting posture is a potential way to assess the developing mechanisms that contribute to CP. The purpose of this project was to determine the reliability of linear and nonlinear measures, including inter- and intrastage reliability, when used to analyze the center of pressure (COP) time series during the stages of sitting development in children with typical development (TD) and with/at-risk for cerebral palsy (CP). We hypothesized that nonlinear tools would be more reliable than linear tools in assessing childrens’ sitting development, and reliability would increase with development. COP data was recorded for three trials at eight sessions. Linear parameters used were root mean square, range of sway for the anterior-posterior (AP) and medial-lateral (ML) directions, and sway path. Nonlinear parameters used were Approximate Entropy, the largest Lyapunov Exponent, and Correlation Dimension for the AP and ML direction. Participants consisted of 33 children with TD and 26 children with/at-risk for CP. Our results determined that COP is a moderately reliable method for assessing the development of sitting postural control in stages in both groups. Thus, clinicians may be able to use measures from COP data across stages to assess the efficacy of therapeutic interventions that are intended to improve sitting postural abilities in children with/at-risk for CP. |
Databáze: | OpenAIRE |
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