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Functions of human muscle spindles in hand muscles as analysed with microneurography

机译:用微神经成像技术分析人的肌肉纺锤在手部肌肉中的功能

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While human subjects performed voluntary movements with varying precision demands, the normal traffic of impulses originating in spindle afferents from finger muscles was recorded. Movements that demanded higher precision resulted in higher impulse rates, indicating stronger fusimotor activity, However, this was regularly associated with stronger contractions of the parent muscle, indicating joint increase of skeletomotor and fusimotor activities. This contrasts with recordings from behaving cats where gamma independence has been emphasized. The discrepancy may be related to the different functional roles ascribed to cat hind limb muscles and human hand muscles, and related differences in neural control circuits design in the two. [References: 30]
机译:当人类受试者以不同的精度要求执行自愿运动时,记录了源自手指肌肉的纺锤传入的正常冲动流量。要求更高精确度的运动导致较高的冲动率,表明有较强的梭动活动,但是,这通常与亲代肌肉的较强收缩相关,这表明骨骼运动和梭动活动共同增加。这与行为猫的录音相反,在该录音中强调了伽马独立性。这种差异可能与归因于猫后肢肌肉和人手肌肉的不同功能角色有关,以及两者在神经控制电路设计上的相关差异。 [参考:30]

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