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人体在随意等长收缩过程中咬肌和颞肌运动单位的有序募集。

The orderly recruitment of motor units of the masseter and temporal muscles during voluntary isometric contraction in man.

作者信息

Yemm R

出版信息

J Physiol. 1977 Feb;265(1):163-74. doi: 10.1113/jphysiol.1977.sp011710.

Abstract
  1. The contractile properties of the motor units of the masseter and temporal muscles of human subjects were studied during voluntary isometric contractions, using a method previously employed to examine units of a small hand muscle. 2. Over the range of forces studied (0-6 kg), the units of both muscles were recruited in an orderly fashion, with a nearly linear relationship between the voluntary force at which units were recruited and their measured twitch tensions. 3. The range of contraction times (25-90 msec) was similar to that observed for the hand muscle. In some subjects it seemed that small units, recruited at low forces, exhibited shorter contraction times.
摘要
  1. 采用先前用于检测手部小肌肉运动单位的方法,对人体受试者咬肌和颞肌运动单位在随意等长收缩过程中的收缩特性进行了研究。2. 在研究的力的范围内(0 - 6千克),两块肌肉的运动单位均按有序方式募集,募集运动单位时的随意力与其测得的单收缩张力之间存在近似线性关系。3. 收缩时间范围(25 - 90毫秒)与手部肌肉观察到的范围相似。在一些受试者中,似乎在低力时募集的小运动单位表现出较短的收缩时间。

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本文引用的文献

1
Motor unit types of cat triceps surae muscle.猫小腿三头肌的运动单位类型。
J Physiol. 1967 Nov;193(1):141-60. doi: 10.1113/jphysiol.1967.sp008348.
5
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Fast and slow twitch units in a human muscle.人体肌肉中的快肌纤维和慢肌纤维单位。
J Neurol Neurosurg Psychiatry. 1971 Apr;34(2):113-20. doi: 10.1136/jnnp.34.2.113.

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