Are the extrinsic muscles better suited for signaling joint angles or finger tip location?

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI:10.1109/IEMBS.1997.757051

J. Biggs, K. Horch, F. Clark

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引用次数: 1

Abstract

Uses a biomechanical model of the human long finger to determine whether the extrinsic muscles are better suited for estimating the finger's joint angles or for estimating the location of the finger tip. We found that two of the extrinsic muscles together could provide sufficient information to directly determine the location of the finger tip relative to the metacarpophalangeal (MCP) joint, without having to determine any of the finger's joint angles. We also found that for some finger positions the extrinsic muscles provide ambiguous information about the finger's joint angles. These results suggest that the biomechanics of the finger and the extrinsic muscles lend themselves more readily to a determination of finger tip location than to a determination of joint angles. In light of these results, it seems possible that human proprioception in the hand may reflect a sense of finger tip location, not joint angles.

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是外在肌肉更适合指示关节角度还是指尖位置?

使用人类长手指的生物力学模型来确定外在肌肉是否更适合于估计手指的关节角度或估计指尖的位置。我们发现两个外部肌肉一起可以提供足够的信息来直接确定指尖相对于掌指关节(MCP)的位置，而无需确定任何手指的关节角度。我们还发现，对于某些手指位置，外部肌肉提供了关于手指关节角度的模糊信息。这些结果表明，与确定关节角度相比，手指和外部肌肉的生物力学更容易用于确定指尖位置。根据这些结果，人类手部的本体感觉可能反映的是指尖位置的感觉，而不是关节角度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)

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