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Application of an ATNR rating scale to normal preschool children
Insights
This study shows that the Asymmetrical Tonic Neck Reflex Rating Scale reveals increased reflex inhibition with age in children. This suggests the scale is a reliable tool for assessing neurodevelopmental progression in young children.
Area of Science:
- Pediatric Neurodevelopment
- Motor Reflex Assessment
- Childhood Reflex Development
Background:
- The Asymmetrical Tonic Neck Reflex (ATNR) is a primitive reflex crucial for early motor development.
- Assessing ATNR reliably is important for identifying neurodevelopmental variations in children.
- Existing methods for ATNR assessment require refinement for clinical application.
Purpose of the Study:
- To evaluate the Asymmetrical Tonic Neck Reflex Rating Scale's effectiveness in normal 3- and 5-year-old children.
- To analyze age-related changes in ATNR inhibition scores.
- To provide data supporting the clinical utility of the ATNR scale.
Main Methods:
- Applied the Asymmetrical Tonic Neck Reflex Rating Scale to 40 typically developing children aged 3 and 5 years.
- Measured elbow flexion in response to passive head rotation across eight trials in a quadrupedal posture.
- Converted raw scores to a four-point scale for analysis.
Main Results:
- Mean ATNR inhibition scores significantly increased with age from 3 to 5 years.
- The variance in inhibition scores decreased with age, indicating greater consistency.
- Findings align with previous research on ATNR development.
Conclusions:
- The Asymmetrical Tonic Neck Reflex Rating Scale demonstrates age-appropriate changes in reflex inhibition.
- The scale's results support its potential for clinical use in pediatric neurodevelopmental assessments.
- Further development of normative data is recommended for enhanced clinical application.
Abstract:
An Asymmetrical Tonic Neck Reflex Rating Scale was applied to data from 40 normal 3- and 5-year-old children. Raw scores representing degrees of elbow flexion in response to passive head rotation were converted using a four-point scale, and the results of eight trials in quadrupedal posture were summed. These results reinforce those of previous studies: the mean inhibition scores increased with age, whereas the variance decreased. Results also support further development of normative data for clinical use of the scale.