نتایج جستجو برای: electromyography
تعداد نتایج: 10890 فیلتر نتایج به سال:
S U M M A R Y — T o f ind w h a t the cor re la t ion is and ver i fy if is poss ib le to avo id ex tens ive e l ec t romyograph i c examinat ion , s t udy ing o n l y one muscle, 100 patients w i th neuromuscu la r d i sorders (58 p r imary myopa th ie s , 32 neu rogen ic d i sorders and 10 m y o t o n i c dys t roph ies ) w e r e submi ted to quant i f ied e l e c t r o m y o g r a p h y ( E ...
INTRODUCTION Although needle electromyography (EMG) appears to be a relatively safe procedure based primarily on clinical experience, no evidence-based guidelines exist for EMG procedures in patients taking anticoagulant or antiplatelet medications. We sought to determine whether there is an increased risk of hematoma formation after EMG of potentially high-risk muscles in patients taking antic...
background: the existence of a pathophysiological link between headaches and muscle activity pattern is still being debated. the purpose of this study was to investigate the effect of pain on the timing pattern of the masseter muscle in patients with tension-type headache (tth) and migraine without aura (moa). methods: 57 women (22 controls, 19 moa and 16 tth) participated in the study. the ele...
abstract background and aim: lack of balance in pattern and activity of quadriceps and hamstring muscles increases the risk of anterior cruciate ligament injury (acl). the purpose of the present study was to investigate the changes in pattern and activity of vastus medialis and semitendinosusmuscles in landing from different heights and to understand if these changes will increase the risk of a...
background: workstation design has shift from using single monitor screen to dual monitor screens, which may impose some impacts towards the muscles activity. this study aimed to determine the effect of using dual monitor screen computer to the neck-shoulder muscle activity among computer user. method: this experimental study was conducted in 2015 among 28 healthy students in university malaysi...
Data from two studies were used to estimate the reliability of facial EMG when used to index facial mimicry (Study 1) or affective reactions to pictorial stimuli (Study 2). Results for individual muscle sites varied between muscles and depending on data treatment. For difference scores, acceptable internal consistencies were found only for corrugator supercilii, and test-retest reliabilities we...
The use of surface electromyography (SEMG) has increased exponentially in the past four decades. SEMG is one of the most widespread measures employed today in psychophysiological assessment and one of three primary biofeedback modalities. This article briefly outlines three areas that the author believes are important for SEMG to address if it is to continue to flourish in the future: applicati...
Background: Interpretation of nerve conduction studies (NCS) and electromyography (EMG) tests are intensive time-consuming processes (30 minutes per patient study). Goal: To create a computer program to automate this process including report generation. Methods: A computer program (called EMG and Nerve Conduction Analysis System, ENCAS) using Common Lisp programming language, Common Lisp Object...
Electromyographic studies in 15 women with nutritional osteomalacia and proximal muscle weakness showed brief duration motor unit action potentials of normal amplitude and increased proportion of polyphasic motor unit potentials in the majority of them. By employing quantitative methods of electromyography, more positive results were obtained, thus reducing the sampling data. The histology show...
CONTENTS GENERAL CONCERNS ................................................................................................... 2 CHARACTERISTICS OF THE EMG SIGNAL ....................................................................... 2 CHARACTERISTICS OF THE ELECTRICAL NOISE .............................................................. 3 MAXIMIZING THE FIDELITY OF THE EMG SIGNAL .................
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