Planning and Control in a Manual Collision Avoidance Task by Children with Hemiparesis

in Motor Control
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We examined whether deficits in planning and control during a manual collision avoidance task in children with hemiparesis are associated with damage to the left or right hemisphere (LHD and RHD). Children pushed a doll across a scale-size road between two approaching toy cars. Movement onset and velocity served as indicators of planning and control. In Experiment 1, children with hemiparesis collided more frequently, and controlled velocity less appropriately compared to typically-developing children. Children with LHD initiated their movement later than children with RHD. Experiment 2 compared the preferred and non-preferred hand of children with LHD and RHD. Children with RHD crossed less with their non-preferred hand, while children with LHD initiated later than children with RHD. Moreover, the groups showed differences in velocity control. It is argued that planning deficits may be related to LHD. The hypothesized association between control deficits and RHD, however, was not confirmed.

Te Velde, van der Kamp, and Savelsbergh are with the Perceptual Motor Control: Development, Learning and Performance; Institute for Fundamental and Clinical Human Movement Sciences, Faculty of Human Movement Sciences, Vrije Universiteit, 1081 BT Amsterdam, The Netherlands. van der Kamp is also with the Institute of Human Performance, University of Hong Kong, Hong Kong. Becher is with the Dept of Rehabilitation Medicine, VU University Medical Centre, Amsterdam, The Netherlands. van Bennekom is with the Rehabilitation Centre Heliomare, Wijk aan Zee, The Netherlands. Savelsbergh is also with the Neural and Visual Control of Movement Group, Institute for Biophysical and Clinical Research into Human Movement, Manchester Metropolitan University, Alsager, UK.