The profile of movement abilities can include impaired manual dexterity (Gunter, Ghaziuddin and Ellis 2002; Manjiviona and Prior 1995; Miyahara et al. 1997), impaired coordination, balance, grasp and tone (Nass and Gutman 1997), and slower speed on manual tasks (Nass and Gutman 1997; Szatmari et al. 1989a).
