Design and Construct Validity of a Postural Control Test for Pre-Term Infants.

Area of Science:

• Neuroscience
• Developmental Pediatrics
• Biomechanics

Background:

• Absence of fidgety movements (FMs) at 3 months post-term is a strong predictor of motor impairment in high-risk infants.
• Early detection of postural control disturbances is crucial for timely intervention in pre-term infants.

Purpose of the Study:

• To validate a novel posturometric test (PT) for assessing postural control in pre-term infants.
• To evaluate the design and construct validity of the PT for detecting motor impairments.

Main Methods:

• Comparative analysis of pre-term infants with and without normal FMs (18 vs. 19 participants).
• Utilized a force platform to analyze center-of-pressure (CoP) trajectory and area in supine and prone positions.
• Simultaneous recording of PT and general movements (GMs).

Main Results:

• Significant differences in CoP parameters were observed between infants with absent FMs and those with normal FMs.
• The PT demonstrated significant differences in spontaneous sway measures in the supine position.
• CoP analysis in the supine position showed clear distinctions between the two infant groups.

Conclusions:

• The posturometric test (PT) based on CoP analysis is a valid tool for detecting postural control disturbances in pre-term infants.
• Analysis of CoP trajectory, area, and velocity in the supine position is effective for early identification of motor issues.
• This novel PT offers a promising approach for early screening and diagnosis in pre-term populations.