Interlimb coordination during locomotion: What can be adapted and stored?
Interlimb coordination during locomotion: What can be adapted and stored?
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DOI：
10.1152/jn.00089.2005
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发表时间：
2005-10-01
影响因子：
2.5
通讯作者：
Bastian, AJ
中科院分区：
文献类型：
--
作者：
Reisman, DS;Block, HJ;Bastian, AJ
在两足球运动期间，相互延长的协调非常重要，并且经常必须适应各种环境环境。在这里，我们使用拆分皮带跑步机研究了人类Interlb的配位，可以使腿以不同的速度移动。人类的成年人，婴儿和脊柱猫可以通过延长姿势并缩短较慢的肢体上的挥杆，反之亦然，可以改变分裂带跑步机上的步行模式，反之亦然。尚不清楚其他运动参数是否会发生变化，还是在训练后是否有存储新电动机模式的能力。我们询问成年人是否适应了裂开皮带步行期间的内部和Interbs步态参数，并显示出训练的后遗症。对健康受试者进行了测试，并用绑带皮带（基线），然后裂开皮带（改编），然后再绑起来（加载后）。在适应过程中直接相关的与Interb关系直接相关的步行参数发生了缓慢变化，并在加入后表现出强大的后效应。这些变化与Limping与No Limping的主观印象平行。相比之下，从单个腿计算出的参数迅速变化以容纳分裂带，并且没有后效应。这些结果表明，在步行过程中，神经控制的神经控制与跨越参数的独立性。他们还表明，成人神经系统可以在短暂的培训后适应并存储新的互联模式。内部内部控制内部控制的差异可能与参数，任务需求和/或神经控制的水平的复杂性不同。
Interlimb coordination is critically important during bipedal locomotion and often must be adapted to account for varying environmental circumstances. Here we studied adaptation of human interlimb coordination using a split- belt treadmill, where the legs can be made to move at different speeds. Human adults, infants, and spinal cats can alter walking patterns on a split- belt treadmill by prolonging stance and shortening swing on the slower limb and vice versa on the faster limb. It is not known whether other locomotor parameters change or if there is a capacity for storage of a new motor pattern after training. We asked whether adults adapt both intra- and interlimb gait parameters during split- belt walking and show aftereffects from training. Healthy subjects were tested walking with belts tied ( baseline), then belts split ( adaptation), and again tied ( postadaptation). Walking parameters that directly relate to the interlimb relationship changed slowly during adaptation and showed robust aftereffects during postadaptation. These changes paralleled subjective impressions of limping versus no limping. In contrast, parameters calculated from an individual leg changed rapidly to accommodate split- belts and showed no aftereffects. These results suggest some independence of neural control of intra- versus interlimb parameters during walking. They also show that the adult nervous system can adapt and store new interlimb patterns after short bouts of training. The differences in intra- versus interlimb control may be related to the varying complexity of the parameters, task demands, and/ or the level of neural control necessary for their adaptation.