Anticipatory and compensatory postural adjustments in sitting in children with cerebral palsy
Anticipatory and compensatory postural adjustments in sitting in children with cerebral palsy
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DOI：
10.1016/j.humov.2010.11.006
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发表时间：
2011-06-01
影响因子：
2.1
通讯作者：
Mochizuki, Luis
中科院分区：
文献类型：
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作者：
Bigongiari, Aline;de Andrade e Souza, Flavia;Mochizuki, Luis
本研究的目的是检查脑瘫儿童的姿势控制执行双侧肩屈从坐姿抓球。参与者是12名正常发育的非脑瘫儿童（对照组）和12名脑瘫儿童（CP）。我们分析了球质量（1 kg和0.18 kg）、体位调整（预期性、APA和代偿性、CPA）和组（对照和CP）对肩部和躯干肌肉电活动的影响。球较重的CPA和后躯干肌肉的iEMG平均值较高（p < 0.05）。CP患儿肌电图和共激活水平最高（p < 0.05）。线性回归表明，控制组的肌电图与年龄呈正相关，而CP组的肌电图与年龄呈负相关。我们认为，儿童的主要姿势控制策略是基于运动开始后的纠正。肌电图与衰老之间的线性关系表明，姿势控制的发展受到中枢神经疾病的影响，这可能导致肌肉共激活的增加。(C) 2011 Elsevier B.V.版权所有
The aim of this study was to examine postural control in children with cerebral palsy performing a bilateral shoulder flexion to grasp a ball from a sitting posture. The participants were 12 typically developing children (control) without cerebral palsy and 12 children with cerebral palsy (CP). We analyzed the effect of ball mass (1 kg and 0.18 kg), postural adjustment (anticipatory, APA, and compensatory, CPA), and groups (control and CP) on the electrical activity of shoulder and trunk muscles with surface electromyography (EMG). Greater mean iEMG was seen in CPA, with heavy ball, and for posterior trunk muscles (p < .05). The children with CP presented the highest EMG and level of co-activation (p < .05). Linear regression indicated a positive relationship between EMG and aging for the control group, whereas that relationship was negative for participants with CP. We suggest that the main postural control strategy in children is based on corrections after the beginning of the movement. The linear relationship between EMG and aging suggests that postural control development is affected by central nervous disease which may lead to an increase in muscle co-activation. (C) 2011 Elsevier B.V. All rights reserved.