Veltink P H, van Alsté J A, Boom H B
Med Biol Eng Comput. 1989 Jan;27(1):19-24. doi: 10.1007/BF02442165.
The relationship between nerve stimulation, pulse amplitude and isometric muscle force was measured to investigate recruitment of motor units. Force addition experiments were performed to obtain insight in the intersection of motor unit groups recruited by different electrodes. Intrafascicular and extraneural multielectrode configurations were used for nerve stimulation. Experiments were performed on rats. The common peroneal nerve was stimulated and the forces of the tibial anterior and extensor digitorum longus muscles were measured isometrically. Recruitment was more stable for intrafascicular electrodes than for extraneural electrodes. Especially for intrafascicular electrodes no strict inverse recruitment was observed. Force addition experiments indicated that small overlap of recruited motor unit groups occurred more often for intrafascicular than for extraneural electrodes.
为研究运动单位的募集情况，测量了神经刺激、脉冲幅度与等长肌力之间的关系。进行了力相加实验，以深入了解不同电极募集的运动单位组的交叉情况。采用束内和神经外多电极配置进行神经刺激。实验在大鼠身上进行。刺激腓总神经，等长测量胫骨前肌和趾长伸肌的力量。束内电极的募集比神经外电极更稳定。特别是对于束内电极，未观察到严格的反向募集。力相加实验表明，与神经外电极相比，束内电极募集的运动单位组的小重叠情况更常出现。
