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The study aims to explore how motor variability influences trunk postural control learning in children with cerebral palsy during walking.

November 20, 2025Journal of NeurophysiologyOpen Access

Motor variability predicts motor learning of improved trunk postural control through repeated trunk perturbations during walking in children with cerebral palsy

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Experiment reveals motor learning improves trunk postural control in children with cerebral palsy through perturbation.

The study aims to explore how motor variability influences trunk postural control learning in children with cerebral palsy during walking.
Examined children with cerebral palsy during two treadmill conditions: PERTURB with lateral perturbation and CONTROL without perturbation.
Measured kinematics and electromyography (EMG) to assess trunk movement and muscle activity.
Conducted baseline, adaptation, post-adaptation, and re-adaptation phases under controlled conditions.
Trunk obliquity decreased immediately after perturbation removal in the PERTURB group (P<0.05).
Greater motor variability at baseline was associated with improved trunk control post-adaptation (P<0.05).
Motor adaptation to trunk perturbations enhanced motor learning ability in trunk control for children with cerebral palsy.

Yan et al. (2025) studied this question.

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