Saša Radovanović

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The aim of this study was to investigate the effects of agonist and antagonist muscle fatigue on the performance of rapid, self-terminating movements. Six subjects performed rapid, consecutive elbow flexion and extension movements between two targets prior to and after fatiguing either the elbow flexor or elbow extensor muscles. The experiments demonstrated(More)
Changes in responses to transcranial magnetic stimulation (TMS) during submaximal isometric voluntary contraction (60% of maximal voluntary contraction (MVC) of the adductor pollicis muscle and the subsequent recovery period have been studied in healthy volunteers. TMS at twice the motor threshold was applied during the sustained contraction, as well as at(More)
Responses of fusimotor neurons to lengthening vs isometric contractions have been studied in decerebrate cats. Spike discharges of fusimotor neurons to the medial gastrocnemius muscle were recorded from this muscle nerve filament during sequences of contractions and/or stretches of the lateral gastrocnemius and soleus muscles. The sequences lasted for(More)
BACKGROUND Motor symptoms in Parkinson's disease (PD) are typically asymmetrical. Early stage of PD is characterised with a predominantly unilateral appearance of tremor, rigidity and bradykinesia, with or without axial involvement. Also, studies have demonstrated gait asymmetry in de novo drug naïve PD patients. Aim of this study was to investigate gait(More)
The goal of this study was to investigate repetitive finger tapping patterns in patients with Parkinson's disease (PD), progressive supranuclear palsy-Richardson syndrome (PSP-R), or multiple system atrophy of parkinsonian type (MSA-P). The finger tapping performance was objectively assessed in PD (n=13), PSP-R (n=15), and MSA-P (n=14) patients and matched(More)
OBJECTIVE We analyzed temporal and stride characteristics in patients with myotonic dystrophy type 1 (DM1) and type 2 (DM2) while performing dual mental and motor tasks, and investigated correlations between gait parameters and cognitive impairments. METHOD Dual-task walking was performed by 37 patients (20 DM1 and 17 DM2) and 48 healthy subjects divided(More)
BACKGROUND Leber hereditary optic neuropathy (LHON) is the most common mitochondrial disorder. However, few countries have published their population-based findings related to this multisystemic disease. THE AIM In order to get a better insight into the epidemiological and clinical picture of this maternally inherited disorder, we performed the first(More)
Depressed patients demonstrate alterations in motor and cognitive functioning that can affect their adjustments to the variations in everyday life environment. The objective was to explore gait parameters and variability of patients with major depressive disorder in dual task walking situations. Eight patients and 20 healthy controls performed motor, mental(More)
This paper presents a monolithic optical detector, consisting of an integrated photodiode and a pre-amplifier in a standard 0.18µm CMOS technology. 3Gb/s data-rate was achieved at λ=850nm with an average optical power of 25 µW and BER10-11. This data-rate is over half an order of magnitude higher than that of current state-of-the-art optical detectors in(More)
The effects of prior vibration of the antagonist triceps muscle on the performance of rapid discrete elbow flexion movements were studied in healthy volunteers. The subjects performed 520 movements over five experimental sessions. The application of prior vibration resulted in a shift of the initial position, an undershoot of the final position in untrained(More)