Bilateral spastic cerebral palsy (BSCP) patients frequently need to use varioussitting devices for body control and function. The aim of this study was toinvestigate whether the use of a belt to position the pelvis in an adjustablechair would affect upper limb function in preschool children with BSCP. Fortyone children with BSCP [mean age 44 ±11, range 18-60 months] classifiedaccording to the Gross Motor Function Classification System (GMFCS), aslevel III (n=21) and level IV (n=20) were fitted with a hip-positioning belt.Upper limb functions were assessed by Quality of Upper Extremity SkillsTest (QUEST). The median scores of the following upper extremity functionsincreased significantly by wearing the hip positioning belt: dissociatedmovements, grasping, weight bearing and protective extension. The total QUESTscore increased from 56.7 (±46.3) to 66.1 (±39.2) (p
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