Fundamental Motor Skills in Children With Specific Learning Disorder.
Ming-Chih Sung, Chien-Yu Pan, Wen-Fan Chen and 3 others
Children with specific learning disorder (reading, writing, or math difficulties) have significantly weaker gross motor skills than their peers — 9 of 12 basic movement skills were less mature — but the deficit looks the same across dyslexia, dyscalculia, and mixed diagnoses.
Key findings
1Children with SLD were significantly less likely to demonstrate mature movement patterns in 9 of the 12 TGMD-2 skills compared with their typically developing peers.
2On the overall gross motor quotient, no child with SLD reached the 'Above average' category, while 80% of typically developing children were rated 'Average' or higher; the SLD group was split across 'Very poor' (28.9%), 'Poor' (26.7%), and 'Below average' (24.4%).
3No significant differences in motor skill performance were found across the four SLD subtypes (dyslexia, dyscalculia, dysorthographia, mixed), though the authors note the small subtype samples (2 dysorthographia, 4 dyscalculia) limited statistical power.
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What it does not show
Small sample with very uneven subtype distribution: only 2 children with dysorthographia and 4 with dyscalculia, making it impossible to draw reliable conclusions about those subgroups. No data on comorbid ADHD or developmental coordination disorder, both of which are common in children with SLD and independently affect motor performance, so the motor deficit cannot be attributed to SLD alone. The TGMD-2 assesses gross motor skills only; fine motor, balance, and graphomotor deficits — which are prevalent in this population and more relevant to writing difficulties — were not measured. Cross-sectional design: a single time-point comparison cannot show whether the motor deficit precedes, follows, or co-occurs with the learning difficulty. The SLD group was on average 1 year older than the TD group (10.44 vs 9.34 years); although age was controlled statistically, the groups were not truly age-matched. Single country (Taiwan) and single urban setting, limiting generalisability to other populations and educational contexts.
Declared interests
No funding was received for this manuscript. The authors declare no conflicts of interest.
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