Janez Faganel

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The different effects of regular and stochastic stimulation on the flexor reflex of patients with the spinal cord totally divided and of normal subjects and on the blink reflex of normal subjects were studied.When the cutaneous stimulus was above but less than twice threshold, with regular stimulation habituation occurred; with stochastic stimulation,(More)
In an attempt to demonstrate the presence of functional descending fibers in patients with clinically apparent functional spinal cord transection, we examined electromyographically recorded paralyzed leg muscle responses to the Jendrassik and other reinforcement maneuvers. Two patterns were observed: a low-amplitude, short onset time reinforcement maneuver(More)
The use of spinal cord stimulation for alleviation of disabilities due to motor neuron lesions has provided the opportunity to explore a new approach to measurement of spinal cord physiology. Externalized leads of epidural electrodes provide the possibility of recording evoked spinal cord activity, while both externalized or implanted leads can be used to(More)
Possible underlying neurophysiological mechanisms of spinal cord stimulation in the modification of motor disorders were discussed by scientists working in research on motor control mechanisms. Changes of motor unit properties in upper motoneuron lesions were reviewed, the role of proprioceptive input and long-loop reflexes in motor control was discussed,(More)
EMG activity of long foot flexor and extensor muscles was studied during gait in 34 ambulatory hemiparetic patients, correlating the EMG to phases of the gait cycle as monitored by switches placed on the plantar surface of the foot. EMG patterns during stance and swing phases were categorized into six groups, ranging from normal alternation of muscle(More)
Spinal cord stimulation was found to be an effective method for improving motor performance in patients with upper motor neuron disorders. Electromyographic analysis of segmental and suprasegmental activity was performed in 11 patients who had used spinal cord stimulation for more than 12 months. Neurophysiological analysis of electromyographic findings(More)
The essential features of motor control in spinal man can be understood in terms of segmental reflexes interacting with, and controlled by, the influence of distant segments and even by the brainstem. Thus, overall motor control in patients with spinal cord lesions can be classified according to structure as: (1) simple segmental stretch and withdrawal(More)
Functional characteristics of the propriospinal interneuron system have been studied in 20 patients with clinically complete chronic transverse spinal cord injury by conditioning repetitively elicited Achilles tendon jerks with noxious electrical stimuli applied to the thoracic, lumbar, and sacral dermatomes. Such conditioning stimuli caused an increase of(More)
A total of 11 children with chronic meningomyeloceles underwent a clinical neurological, urodynamic and neurophysiological evaluation to define further the level and type of lesion present in the lumbosacral spinal area. The neurophysiological evaluation was correlated with detrusor activity. Detrusor hyperreflexia was present in 45 per cent of the patients(More)