Source:Research in Developmental Disabilities, Volume 71
Author(s): Mattana Angsupaisal, Linze-Jaap Dijkstra, Sacha la Bastide-van Gemert, Jessika F. van Hoorn, Karine Burger, Carel G.B. Maathuis, Mijna Hadders-Algra
BackgroundThe effect of forward-tilting of the seat surface and foot-support in children with spastic cerebral palsy (CP) is debated.AimTo assess the effect of forward-tilting of the seat surface and foot-support in children with CP on kinematic head stability and reaching.MethodsNineteen children functioning at Gross Motor Function Classification System levels I–III participated [range 6–12y; ten unilateral spastic CP (US-CP) and nine bilateral spastic CP (BS-CP)]. Kinematic data were recorded of head sway and reaching with the dominant arm in four sitting conditions: a horizontal and a 15° forward (FW) tilted seat surface, each with and without foot-support.ResultsSeating condition did not affect head stability during reaching, but did affect kinematic reaching quality. The major reaching parameters, i.e., the proportion of reaches with one movement unit (MU) and the size of the transport MU, were not affected by foot-support. Forward-tilting had a positive effect on these parameters in children with US-CP, whereas the horizontal condition had this effect in children with BS-CP.ImplicationsA 15° forward-tilted seating and foot-support do not affect head stability. Reaching in children with US-CP profits from forward-tilting; in children with BS-CP forward-tilting worsens reaching − effects that are independent of foot-support.
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