The purpose of this study is to determine the laterality of nine children with medium motor disabilities in order to continue adapted physical activities as well as to play a certain part in the development of the intervention plans personalized by the other specialists of the centre. The following tests have been used: the Flamingo Test, RSSCAN Preassure Platform, the Bruininks-Oseretsky Battery, the R. Rigal Test, the Test of intermingling fingers and the test of out of step corking and uncorking of a small plastic recipient. We have identified two cases of ambidexterity, three cases of cross laterality and four cases of right laterality.