RT Journal Article SR Electronic T1 A damping factor in human voluntary contraction. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 536 OP 537 DO 10.1136/jnnp.39.6.536 VO 39 IS 6 A1 Hufschmidt, H J A1 Linke, D YR 1976 UL http://jnnp.bmj.com/content/39/6/536.abstract AB Experiments on patients with Parkinsonism showed that the damping factor was lowered, so that, a tension stimulus being without supraspinal effect, oscillation occurred.