A new method for the measurement of tremor at rest - TNR
tremor (KELLY, 1978). KOLLER et al (1987) observed that examination stress is often accompanied by whole body microvibrations relieved by propanolol. Mental stress can not only induce tremor in healthy subjects (HAIDER et al, 1983), but also exaggerate the pathological tremor of patients suffering from essential ...
Published in : International Archives of Physiology, Biochemistry and Biophysics, 1992, 100, 73-78
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A new method for the measurement of tremor at rest by M. BOUCHOUCHA (1), B. COMBY (2), & al. (1) Laboratoire IBC - Institut Bruno Comby, France ; (2) Laboratoire de Physiologie - Hôpital Laënnec, Paris, France. (4 figures)
Summary This paper establishes a standard method for measuring human tremor at rest. The new electronic instrument described is an application of this method. It solves the need for an effective and simple tremor-measuring instrument fit for wide distribution. This instrument consists of a piezoelectric accelerometer connected to an electronic circuit and to a device displaying the results. The signal was analysed both using this method and also by a computer after accelerometer analogic/digital conversion. The tremor of 1079 healthy subjects was studied. Spectral analysis showed frequency peaks between 5.85 and 8.80 Hz. However the variations of the amplitude of tremor at rest was the most interesting parameter in relation to the subjects’ neurological condition. Adrenaline, nicotine, and caffeine can increase the tremor at rest. On the contrary, a relaxation session decreased tremor at rest significantly in healthy subjects (P
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