Segmental trunk control acquisition and reaching in typically developing infants
Segmental trunk control acquisition and reaching in typically developing infants
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DOI：
10.1007/s00221-013-3544-y
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发表时间：
2013-07-01
影响因子：
2
通讯作者：
Woollacott, Marjorie H.
中科院分区：
文献类型：
--
作者：
Rachwani, Jaya;Santamaria, Victor;Woollacott, Marjorie H.
本研究探讨了在躯干的胸部和骨盆水平的外部支持的影响，达到的成功，姿势稳定性和达到运动学，而婴儿达到了一个玩具。17名婴儿（4-6个月）根据躯干控制的分段评估分为两组。在骨盆支撑组之间观察到了主要差异，而在胸部支撑组中，所有婴儿表现出相似的伸手行为质量。与仅在胸部获得躯干控制的婴儿相比，在骨盆外部支撑的情况下，在腰部获得躯干控制的婴儿在伸展运动中更准确（更少的运动时间，改善伸展的平直度，更少的运动单位和增加每个运动单位的路径长度），并且在伸展过程中更稳定（减少躯干和头部位移）。这些结果支持这一假设，即躯干控制影响的质量达到的行为。
This study explored the influence of an external support at the thoracic and pelvic level of the trunk on the success of reaching, postural stability and reaching kinematics while infants reached for a toy. Seventeen infants (4-6 months) were clustered into two groups according to their trunk control assessed with the Segmental Assessment of Trunk Control. Major differences were seen between groups with pelvic support, whereas with thoracic support, all infants showed similar quality reaching behaviors. With the external pelvic support, infants who had acquired trunk control in the lumbar region were more accurate in their reaching movements (less movement time, improved straightness of reach, less movement units and increased path length per movement unit) and were more stable (decreased trunk and head displacement) during a reach than infants who had only acquired trunk control in the thoracic region. These results support the hypothesis that trunk control influences the quality of reaching behavior.