Independent Long Fingers are not Essential for a Grasping Hand.
Independent Long Fingers are not Essential for a Grasping Hand.
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DOI：
10.1038/srep35545
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发表时间：
2016-10-19
影响因子：
4.6
通讯作者：
Cipriani C
中科院分区：
文献类型：
--
作者：
Montagnani F;Controzzi M;Cipriani C
人手是一个复杂的集成系统，具有运动和感觉组件，为个人提供了高功能和优雅的行为。手与大脑直接相连，能够执行无数的动作，从精细的手指操作到搬运重物。然而，哪些动作主要有助于手部的操作技能，因此应该包含在假手中，这一问题尚未得到解答。基于我们之前的工作，并假设具有独立长手指的手的性能与具有耦合手指的手相当，在这里我们探索了独立手指在使用定制矫形器进行日常生活活动时的实际贡献。我们的研究结果表明，当存在相对拇指时，只有在涉及精确抓握时，独立的长手指才能在执行日常生活活动中提供可测量的优势。此外，结果表明，人手卓越的抓取能力更多地依赖于手指的独立外展/内收，而不是手指的独立弯曲/伸展。这些发现引起了人造手（包括仿生假肢和外骨骼）设计者的兴趣。
The human hand is a complex integrated system with motor and sensory components that provides individuals with high functionality and elegant behaviour. In direct connection with the brain, the hand is capable of performing countless actions ranging from fine digit manipulation to the handling of heavy objects. However the question of which movements mostly contribute to the manipulation skills of the hand, and thus should be included in prosthetic hands, is yet to be answered. Building from our previous work, and assuming that a hand with independent long fingers allowed performance comparable to a hand with coupled fingers, here we explored the actual contribution of independent fingers while performing activities of daily living using custom built orthoses. Our findings show that, when an opposable thumb is present, independent long fingers provide a measureable advantage in performing activities of daily living only when precision grasps are involved. In addition, the results suggest that the remarkable grasping skills of the human hand rely more on the independent abduction/adduction of the fingers than on their independent flexion/extension. These findings are of interest to the designers of artificial hands, including biomimetic prostheses and exoskeletons.
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作者：
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发表时间：
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影响因子：
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