Limited transfer of newly acquired movement patterns across walking and running in humans.
Limited transfer of newly acquired movement patterns across walking and running in humans.
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DOI：
10.1371/journal.pone.0046349
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Nakazawa K
中科院分区：
文献类型：
--
作者：
Ogawa T;Kawashima N;Ogata T;Nakazawa K
人类运动的两种主要模式，步行和跑步，可以被认为是不同速度的函数（步行较慢，跑步较快）。最近的结果，在人类运动学习任务，以及更直接的证据，从动物模型，主张独立的神经控制机制的基础上不同的运动任务。在目前的研究中，我们研究了人类行走和跑步的神经机制可能的独立性。受试者进行了测试的分裂带跑步机和适应步行或跑步的不对称驱动的跑步机表面上。尽管在各自的模式中获得了不对称的运动模式，但在随后的试验中，不对称运动模式的出现仅在相同的模式中是明显的（学习走路后走路和学习跑步后跑步），并且在相反的模式中仅部分（学习跑步后走路和学习走路后跑步）（因此仅在模式之间有限地转移）。此外，在每个模式中所获取的运动模式的存储被独立于相反模式地保持。结合起来，这些结果提供了间接的证据，独立的神经控制机制的两个机车模式。
The two major modes of locomotion in humans, walking and running, may be regarded as a function of different speed (walking as slower and running as faster). Recent results using motor learning tasks in humans, as well as more direct evidence from animal models, advocate for independence in the neural control mechanisms underlying different locomotion tasks. In the current study, we investigated the possible independence of the neural mechanisms underlying human walking and running. Subjects were tested on a split-belt treadmill and adapted to walking or running on an asymmetrically driven treadmill surface. Despite the acquisition of asymmetrical movement patterns in the respective modes, the emergence of asymmetrical movement patterns in the subsequent trials was evident only within the same modes (walking after learning to walk and running after learning to run) and only partial in the opposite modes (walking after learning to run and running after learning to walk) (thus transferred only limitedly across the modes). Further, the storage of the acquired movement pattern in each mode was maintained independently of the opposite mode. Combined, these results provide indirect evidence for independence in the neural control mechanisms underlying the two locomotive modes.
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