Abstract
Clinical evaluation of clonus in spastic muscles was performed by comparing reflex path length with clonus frequency for different muscles in the same patient. It was found that clonus frequency varied inversely with reflex path length (r = 0.84, p less than 0.001). The findings confirm that clonus is generated by a peripheral mechanism of self re-excitation rather than a central spinal pacemaker.
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Selected References
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- Dimitrijevic M. R., Nathan P. W., Sherwood A. M. Clonus: the role of central mechanisms. J Neurol Neurosurg Psychiatry. 1980 Apr;43(4):321–332. doi: 10.1136/jnnp.43.4.321. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gottlieb G. L., Agarwal G. C. Physiological clonus in man. Exp Neurol. 1977 Mar;54(3):616–621. doi: 10.1016/0014-4886(77)90260-6. [DOI] [PubMed] [Google Scholar]
- Hagbarth K. E., Wallin G., Löfstedt L., Aquilonius S. M. Muscle spindle activity in alternating tremor of Parkinsonism and in clonus. J Neurol Neurosurg Psychiatry. 1975 Jul;38(7):636–641. doi: 10.1136/jnnp.38.7.636. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Szumski A. J., Burg D., Struppler A., Velho F. Activity of muscle spindles during muscle twitch and clonus in normal and spastic human subjects. Electroencephalogr Clin Neurophysiol. 1974 Dec;37(6):589–597. doi: 10.1016/0013-4694(74)90072-8. [DOI] [PubMed] [Google Scholar]
- Walsh E. G. Clonus: beats provoked by the application of a rhythmic force. J Neurol Neurosurg Psychiatry. 1976 Mar;39(3):266–274. doi: 10.1136/jnnp.39.3.266. [DOI] [PMC free article] [PubMed] [Google Scholar]