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Severity and characteristics of developmental delay can be assessed using variability measures of sitting posture
Anastasia Kyvelidou1, Regina T Harbourne, Nicholas Stergiou
1Nebraska Biomechanics Core Facility, University of Nebraska at Omaha, Omaha, Nebraska, USA.
Insights
Measures of center of pressure (COP) variability during sitting postural sway can differentiate infants with developmental delays or cerebral palsy. This objective method aids in describing motor delays and designing targeted interventions.
Area of Science:
- Pediatric neurology
- Developmental pediatrics
- Biomechanics
Background:
- Assessing postural control in infants is crucial for early detection of developmental disorders.
- Sitting postural sway provides insights into neuromotor development.
- Objective measures are needed to complement clinical assessments.
Purpose of the Study:
- To identify distinct measures of sitting postural sway variability in typically developing infants, those with developmental delay/hypotonia, and those diagnosed with cerebral palsy (spastic or athetoid).
- To determine if center of pressure (COP) variability measures can differentiate these infant groups.
Main Methods:
- Evaluated 65 infants during the early stages of upright sitting ability.
- Assessed center of pressure (COP) data to quantify variability.
- Analyzed both the amount and temporal organization of COP variability.
Main Results:
- Measures of COP variability successfully discriminated between infants with developmental delay and those with cerebral palsy.
- These findings contribute to a more detailed description of sitting postural behavior in infants.
- Specific patterns of sway variability were associated with different developmental trajectories.
Conclusions:
- The evaluation of sitting postural control using COP variability offers an objective tool for identifying motor delays in infants.
- This method can help describe unique motor features in individual infants.
- Findings may inform the development of targeted therapeutic interventions to enhance postural control in infants with motor impairments.
Purpose:
We sought to identify measures of variability from sitting postural sway that are significantly different among infants who were developing typically, those who were developmentally delayed or hypotonic, and those who later on had a diagnosis of spastic or athetoid cerebral palsy.
Methods:
Sixty-five infants were evaluated when they were just developing the ability to sit upright by assessing center of pressure (COP) data, using measures of both amount and temporal organization of COP variability.
Results:
The results indicated that measures of variability of COP could discriminate between infants with developmental delay and infants with cerebral palsy and add to the description of sitting postural behavior.
Conclusions:
Our method of evaluating sitting postural control could be an objective tool to help describe distinctive features of motor delay in an individual infant and could lead in the design of selective therapeutic interventions for improving postural control of infants with motor delays.
