Motor co-ordination
Poor motor co-ordination affects some children with ADHD,
particularly boys (Cole et al. 2008).Motor deficits may manifest
as involuntary movements that occur in the presence of voluntary
movements, possibly because of inhibitory control deficits
(Mostofsky et al. 2003), or poor rhythm or timing in movements
(Cole et al. 2008). Difficulties in motor co-ordination
can result in clumsiness, perhaps explaining the high rates of
injury in children with ADHD (Rowe et al. 2004) and poor
handwriting (Brossard-Racine et al. 2011) and performance in
sports (Harvey et al. 2009).