scholarly journals The relationship between motor milestone achievement and childhood motor deficits in children with Attention Deficit Hyperactivity Disorder (ADHD) and children with Developmental Coordination Disorder

2021 ◽  
Vol 113 ◽  
pp. 103920
Author(s):  
Jenna Lee ◽  
Leighanne A. Mayall ◽  
Kathryn E. Bates ◽  
Elisabeth L. Hill ◽  
Hayley C. Leonard ◽  
...  
2020 ◽  
Author(s):  
Jenna Lee ◽  
Emily Farran ◽  
Kathryn E Bates ◽  
Elisabeth L. Hill ◽  
Hayley C. Leonard ◽  
...  

•Background: The prevalence of motor impairment is high in ADHD, but we do not know if this stems from infancy.•Aims: 1) to compare the acquisition of motor milestones across three groups: Typically Developing (TD), Attention Deficit Hyperactivity Disorder (ADHD) and Developmental Coordination Disorder (DCD); 2) to determine the relationship between current motor ability and ADHD characteristics in children with ADHD. •Methods and Procedures: The parents of children aged 8-16 years (ADHD, N=100; DCD, N=66; TD, N=40) completed three online questionnaires: Motor milestone questionnaire; Developmental Coordination Disorder Questionnaire (DCDQ’07) (concurrent motor ability); Conners 3 Parent Rating Scale Long Form (ADHD characteristics). •Outcome and Results: When considered as a group, the ADHD group achieved motor milestones within a typical timeframe, despite concurrent motor impairments. Motor ability was not associated with ADHD characteristics. Latent Profile Analysis demonstrated that 56% of the ADHD group and 48% of the DCD group shared the same profile of motor milestone achievement, concurrent motor ability and ADHD characteristics. •Outcomes and Conclusions: Unlike children with DCD, the motor impairment often observed in ADHD is not evident from infancy. It is also not part of the ADHD phenotype. Individual differences analysis demonstrated the broad heterogeneity of the ADHD phenotype.


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