Ghezzi A, Callea L, Zaffaroni M, Zibetti A, Montanini R
Multiple Sclerosis Study Centre, Gallarate Hospital, Italy.
Acta Neurol Scand. 1991 Dec;84(6):503-6. doi: 10.1111/j.1600-0404.1991.tb05003.x.
Motor potentials to transcranial and cervical magnetic stimulation and F-wave were recorded in 37 arms of 25 normal subjects. Clockwise and anticlockwise cervical stimulation were performed over C5, C7 and T2 spinous processes. A significant correlation was found between height and measurements of central and peripheral motor conduction. Peripheral motor conduction measured by F-wave derived techniques (Kimura formula) was 0.5 msec higher as compared with responses to cervical magnetic stimulation. The site and current flow direction of cervical magnetic stimulation influenced the amplitude of responses but not their latency: responses were larger in the right arm when the centre of the coil was placed over the C5 spinous process and clockwise stimuli were used. The same results were obtained in the left arm when the coil was reversed.
在25名正常受试者的37条手臂上记录了经颅和颈部磁刺激的运动电位以及F波。在C5、C7和T2棘突上进行顺时针和逆时针颈部刺激。发现身高与中枢和外周运动传导测量值之间存在显著相关性。通过F波衍生技术（木村公式）测量的外周运动传导比颈部磁刺激反应高0.5毫秒。颈部磁刺激的部位和电流流动方向影响反应的幅度，但不影响其潜伏期：当线圈中心置于C5棘突上方并使用顺时针刺激时，右臂的反应更大。当线圈反转时，左臂也得到了相同的结果。
