Abstract
Children with hemiplegia have deficits in motor planning in addition to their impairments in movement of their more-affected upper extremity (UE). However, little is known about the relationship between motor planning and multi-segment coordination during functional activities in this population. In the present study, motor planning strategies and multi-segment coordination of the head, trunk, and UE were examined during a functional reach-grasp-eat task in children with hemiplegia. Ten children with hemiplegia (age 4-10 years; MACS levels I-II) and ten age-matched, typically developing children participated in the study. Children were asked to reach, grasp and transport a cookie to the mouth with one hand while 3-D kinematic analyses were performed. A more extended wrist (p = 0.001) and higher end-point position of grasping (p = 0.001) were found for both UEs of children with hemiplegia. The less-affected UE had greater trunk contribution (p = 0.018) and greater shoulder flexion (p = 0.002) and elbow extension (p = 0.005) during reaching compared to the TDC. The more-affected UE had impaired movement control with greater head rotation (p = 0.011), higher variability of end-point location in space (p = 0.001), greater trunk con...Continue Reading
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