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Published on: December 7, 2018
The early motor development in children diagnosed with ADHD: a systematic review
Sine Ravn Havmoeller1,2, Per H Thomsen3, Sanne Lemcke3
1Centre for Child and Adolescent Psychiatry, Research Department, Aarhus University Hospital, Aarhus, Denmark. sineravhav@hotmail.com.
Insights
Early motor development in children later diagnosed with Attention-Deficit/Hyperactivity Disorder (ADHD) shows inconsistent findings. This systematic review found no firm conclusions due to varied results and methodological differences in studies.
Area of Science:
- Neurodevelopmental disorders
- Pediatric neurology
- Developmental psychology
Background:
- Deviations in motor development are potential early indicators of Attention-Deficit/Hyperactivity Disorder (ADHD).
- Limited knowledge exists regarding specific motor development patterns preceding an ADHD diagnosis.
Purpose of the Study:
- To systematically review and synthesize existing research on motor development in children under three years of age who were later diagnosed with ADHD.
- To identify potential early signs of ADHD within motor development trajectories.
Main Methods:
- Systematic literature search conducted across four major research databases.
- Rigorous quality assessment of identified studies.
- Full abstraction of five studies meeting inclusion criteria.
Main Results:
- Significant methodological heterogeneity observed across the included studies.
- Conflicting findings regarding the association between gross motor development delays and ADHD.
- Some studies indicated associations with both delayed and advanced early motor development, while others found no link in specific high-risk populations.
Conclusions:
- No definitive conclusions can be drawn regarding early motor development in children with ADHD.
- Methodological heterogeneity and contradictory results limit the ability to establish a clear link.
- Further research with standardized methodologies is needed to clarify the role of early motor development in ADHD.
Abstract:
Although there is limited knowledge about early signs of ADHD, deviations in motor development are suggested as a possible indicator of such early signs. The purpose of the present systematic review was to gather knowledge about motor development before three years of age in children later diagnosed with ADHD. A systematic search was completed in four research databases, and the quality of the identified studies was systematically assessed. Of 440 initial search results, only five studies met the inclusion criteria and were fully abstracted. Major methodological heterogeneity was found between the studies, and the results are pointing in various directions. One study found an association between delay in gross motor development and ADHD, while another did not. However, associations between both good early motor development as well as delayed were also found in one study. A study of premature infants showed no association between early motor development and attention problems at school age, and a study of high-risk children from a neonatal care unit found no association between abnormal general movements and later ADHD without comorbidity. The results of the studies are pointing in various directions. No firm conclusion can be drawn on early motor development in children with ADHD due to the very different results of the studies and the methodological heterogeneity.
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