56. Induced Exacerbation of Parkinsonian Rigidity
نویسندگان
چکیده
منابع مشابه
Studies on induced exacerbation of Parkinsonian rigidity: The effect of contralateral voluntary activity.
Recent increasing interest in surgery of the basal ganglia for tremor and rigidity in Parkinsonism would seem to warrant more critical measures for evaluating these symptoms, not only for the purpose of assessing surgical results but also to elucidate the underlying neurological mechanisms. Parkinsonian symptoms, especially rigidity and tremor, are frequently unstable and may vary with the pati...
متن کاملParkinsonian rigidity.
Rigidity is one of the major signs of P a r k i n s o n ’s disease (PD). However, its pathophysiology has rarely been studied. This appears a little surprising since data obtained from animal physiology, which offers a scheme of neuronal circuits that might be hyperor hypoactive, could be useful in the study of muscle tone problems, a classical area in neurological semiology. Experimental model...
متن کاملParkinsonian Rigidity Depends on the Velocity of Passive Joint Movement.
Background. It has been long believed that Parkinsonian rigidity is not velocity-dependent based on the neurological examination. However, this has not been verified scientifically. Methods. The elbow joints of 20 Parkinson's disease patients were passively flexed and extended, and two characteristic values, the elastic coefficient (elasticity) and the difference in bias (difference in torque m...
متن کاملThe influence of various stimuli upon Parkinsonian tremor and rigidity.
In the recent literature there have appeared several publications concerning the influence of central or peripheral stimulation upon tremor and rigidity in Parkinson's disease. Attention has mainly been directed to the effect of central electrical stimulation upon tremor. Dependent on the parameters of a given stimulus, an inhibitory or facilitatory effect was obtained (Feinstein and Levin, 196...
متن کاملNormalizing EMG to Background Muscle Activation Masks Medication-Induced Reductions in Reflex Amplitudes in Parkinsonian Rigidity.
OBJECTIVES Exaggerated reflex responses to passive stretch and shortening contribute to parkinsonian rigidity. Studies have reported medication-induced reductions in rigidity in the absence of attenuated reflex magnitudes. The purpose of this study was to determine if normalization procedures mask medication-induced reductions in reflex responses in Parkinson's disease. METHODS Twelve partici...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Neurologia medico-chirurgica
سال: 1963
ISSN: 0470-8105,1349-8029
DOI: 10.2176/nmc.5.84b