Impaired force coordination during object release in children with hemiplegic cerebral palsy
Impaired force coordination during object release in children with hemiplegic cerebral palsy
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DOI：
10.1017/s0012162200000396
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发表时间：
2000-04-01
影响因子：
3.8
通讯作者：
Gordon, AM
中科院分区：
文献类型：
--
作者：
Eliasson, AC;Gordon, AM
近年来对脑瘫儿童手部运动控制的研究主要集中在抓握和举举物体时指尖力的协调。然而，人们对替换和从抓握中释放物体的能力知之甚少，而这一功能对灵巧性同样重要。本研究对14名患有偏瘫CP的儿童（7 - 13岁）和14名年龄相匹配的正常发育儿童进行了指尖力量在从抓握中置换和释放物体（200克或400克）过程中的协调。结果表明，偏瘫CP患儿的抓握动作是突然的，但抓握动作的释放时间较长且不协调。与对照组儿童不同的是，CP儿童的握力和负重力依次下降。然而，所有儿童都能根据正在进行的抬起的体感体重相关信息适当地衡量力下降的速度。该结果为偏瘫CP患儿的手部技能受损提供了进一步的信息。
Recent studies on hand motor control in children with cerebral palsy (CP) have focused on the coordination of fingertip forces during the grasping and lifting of objects. However, little is known about the ability to replace and release an object from grasp, a function that is just as important for fine dexterity. The present study examines the coordination of fingertip forces during the replacement and release of an object (either 200 g or 400 g) from grasp in 14 children (aged between 7 and 13 years) with hemiplegic CP and in 14 age-matched typically developing children. The results indicate that children with hemiplegic CP abruptly replaced the object but had a prolonged and uncoordinated release of the grasp. Unlike what was seen in the control children, the grip and load forces decreased sequentially in the children with CP. However, all the children could appropriately scale the rate of force decrease based on somatosensory weight-related information from the ongoing lift. The results provide further information about the impaired hand skills in children with hemiplegic CP.