The effect of height, weight and head circumference on gross motor development in achondroplasia.

[achondroplasia]

This study aimed to investigate whether height , weight , head circumference and /or relationships between these factors are associated with gross motor milestone acquisition in children with achondroplasia .Population-based data regarding timing of major gross motor milestones up to 5 years were correlated with height , weight and head circumference at birth and 12 months in 48 children with achondroplasia born in Australia and New Zealand between 2000 and 2009 .Although as a group children with achondroplasia showed delayed gross motor skill acquisition , within group differences in height , weight or head circumference did not appear to influence timing of gross motor skills before 5 years . The exception was lie to sit transitioning , which appears likely to occur earlier if the child is taller and heavier at 12 months , and later if the child has significant head -to -body disproportion .This is the first study to investigate the relationship between common musculoskeletal impairments associated with achondroplasia and timing of gross motor achievement . Identification of the musculoskeletal factors that exacerbate delays in transitioning from lying to sitting will assist clinicians to provide more proactive assessment , advice and intervention regarding motor skill acquisition for this population .

Diseases
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Diseases presenting "timing of gross motor achievement" symptom

achondroplasia

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