Postural responses to a moving room in children with and without developmental coordination disorder

Area of Science:

• Developmental neuroscience
• Motor control
• Visual-vestibular interaction

Background:

• Developmental Coordination Disorder (DCD) affects motor skills in children.
• Postural control relies on integrating visual, vestibular, and somatosensory information.
• Optic flow, generated by visual motion, is crucial for maintaining balance.

Purpose of the Study:

• To investigate how children with and without DCD utilize imposed optic flow for postural control.
• To examine the influence of different optic flow parameters (amplitude and frequency) on postural responses.
• To determine if DCD affects visual-postural coupling in a systemic or situation-specific manner.

Main Methods:

• Children aged 10-11 with and without DCD participated.
• Participants stood in a moving room, experiencing imposed optic flow.
• Room motion amplitude and frequency were systematically varied.
• Standing body sway was measured and coupled with room oscillations.

Main Results:

• Both groups showed body sway influenced by room motion.
• Children with DCD exhibited distinct responses compared to typically developing children.
• These differential responses occurred under specific combinations of room motion amplitude and frequency.

Conclusions:

• Developmental Coordination Disorder can impact how children use optic flow for postural stability.
• The effects of DCD on visual-postural control are context-dependent.
• These findings suggest situation-specific challenges in visual-motor integration for children with DCD.