Emg Primer
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| Author | : Frieder Lahoda |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 72 |
| Release | : 2012-12-06 |
| Genre | : Medical |
| ISBN | : 3642659896 |
In the last twenty years electromyography and electro neurography have earned a secure position amongst methods of electrophysiological investigation; indeed, it is no longer possible to think of neurological diagnosis with out them. In particular, it is in the early recognition of peri pheral neuromuscular disorders that these techniques are so dependable and objective. The present text may be thought of as an introduction to method and to diagnostic application, and it should be of value to the physician both in hospital and in his practice. The authors have thought it best to omit discussion of basic scientific problems, which may be found in the neurophysiological literature. Munich, Spring 1974 A. Schrader v Contents 1. 1 Anatomical Foundations . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. 1. 1. The Motor Unit. . . . . . . . . . . . . . . . . . . . . . . 1 1. 1. 2. Structure of the Peripheral Nerve . . . . . . . 1 1. 1. 3. The Neuromuscular Junction . . . . . . . . . . . . . . . 1 1. 2 Electrophysiological Foundations . . . . . . . . . . . . . . . . . . 2 1. 2. 1. Origin of Muscle Action Potentials. . . . . . . . . . . . 2 1. 2. 2. Conduction in the Peripheral Nerve. . . . . . . . . . . . 3 1. 2. 2. 1. Stimulation: Basic Considerations. . . . . . . . . . . . . 3 1. 2. 2. 2. Form, Duration and Amplitude of Action Potentials. . . 4 a) Evoked Muscle Action Potentials . . . . . . . . . . . 4 b) Nerve and Sensory Action Potentials. . . . . . . . . 4 c) Reflex Potentials . . . . . . . . . . . . . . . . . . . . 5 2. 1. Technical Foundations . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. 1. 1. Structure and Function of the Machine. . . . . . . . . . 6 2. 1. 1. 1. The Structure of an Electromyograph. . . . . . . . . . 6 2. 1. 1. 2. The EMG Amplifier. . . . . . . . . . . . . . . . . . . . 7 2. 1. 1. 3. Supplementary Measuring Methods in Electrom- graphy . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
| Author | : National Library of Medicine (U.S.) |
| Publisher | : |
| Total Pages | : 1430 |
| Release | : |
| Genre | : Medicine |
| ISBN | : |
First multi-year cumulation covers six years: 1965-70.
| Author | : Joseph Mizrahi |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 228 |
| Release | : 2011-08-29 |
| Genre | : Medical |
| ISBN | : 9533073829 |
The electrical activity of the muscles, as measured by means of electromyography (EMG), is a major expression of muscle contraction. This book aims at providing an updated overview of the recent developments in electromyography from diverse aspects and various applications in clinical and experimental research. It consists of ten chapters arranged in four sections. The first section deals with EMG signals from skeletal muscles and their significance in assessing biomechanical and physiologic function and in applications in neuro-musculo-skeletal rehabilitation. The second section addresses methodologies for the treatment of the signal itself: noise removal and pattern recognition for the activation of artificial limbs. The third section deals with utilizing the EMG signals for inferring on the mechanical action of the muscle, such as force, e.g., pinching force in humans or sucking pressure in the cibarial pump during feeding of the hematophagous hemiptera insect. The fourth and last section deals with the clinical role of electromyograms in studying the pelvic floor muscle function.
| Author | : Library of Congress. Copyright Office |
| Publisher | : Copyright Office, Library of Congress |
| Total Pages | : 1608 |
| Release | : 1976 |
| Genre | : Copyright |
| ISBN | : |
| Author | : National Library of Medicine (U.S.) |
| Publisher | : |
| Total Pages | : |
| Release | : 1971 |
| Genre | : Medicine |
| ISBN | : |
First multi-year cumulation covers six years: 1965-70.
| Author | : H. Penzholz |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 475 |
| Release | : 2012-12-06 |
| Genre | : Medical |
| ISBN | : 3642662390 |
This volume contains the papers presented at the 26th Annual Meeting of the Deutsche Gesellschaft fUr Neurochirurgie, held in Heidelberg, Western Germany, on May 1-3,1975. Since at recent meetings of the German Neurosurgical Society central pathophysiological problems such as "central dysregulation" and "brain edema" had been discussed extensively, it seemed appropriate to choose another major area of cerebral patho physiology for the meeting in Heidelberg. CEREBRAL HYPOXIA is, as LANGFITT once emphasized, "the final common denominator" of various cerebral lesions with which the neurosurgeon is confronted every day. Raised intracranial pressure, respiratory disorders and disturbances in systemic arterial blood pressure, etc. may lead, if not treated, to a focal or global lack of oxygen in the brain tissue. Anoxia finally results in cell death and thus in irreversible cerebral damage or even death. Main interest has therefore been focussed on disturbances in cerebral perfusion pressure ("ischemic hypoxia") and in arterial oxygenation ("hypoxic hypoxia"). The importance of cerebral autoregulatory mechanisms protecting the brain against tissue hypoxia, of patho morphological alterations of the cerebral vessels (e. g. the "no-reflow-phenomenon") in the course of severe hypoxia, and of changes in brain metabolism have been discussed on a large scale. The organizing committee was particularly happy to have obtained internationally well-known scientists who presented their work in the field of cerebral hypoxia.
| Author | : R. Heene |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 104 |
| Release | : 2012-12-06 |
| Genre | : Medical |
| ISBN | : 3642662005 |
Experimental Myopathies and Muscular Dystrophy. A Study of the Formal Pathogenesis of Primary Myopathies as Exemplified in the Myopathy of 2,4-Dichlorophenoxyacetic Acid The histochemical types of muscle fibres are described and a report presented of the histological and histochemical altera tions in skeletal muscles (tibialis anterior, gastrocnemius and soleus muscles) of rats given intraperitoneal injections of the herbicide, 2,4-dichlorophenoxyacetic acid (2,4-0). The liver and myocardium of the experimental animals were also examined. In skeletal muscle, alterations occurring acutely within 1 to 1. 5 h after injection of a single dose of 300 mg/kg 2,4-0 could be distinguished from changes which developed subacutely in the course of treatment with repeated injections of one quarter to one half of the LDSO of the substance. In both con ditions white (type 2B/Am) muscle fibres were involved pre dilectively. The principal histochemical effect of acute intoxi cation observed was leakage of phosphorylase and glycogen from white muscle fibres, whereas some of the red fibres (type 2A/C) m showed an increase in primary glycogen and phosphorylase activ ity. These changes, which must be considered nonspecifi~, were established by use of a gelatin incubation technique. They occurred as typical findings in the middle and deep areas of the anterior tibial muscle. In other muscles or different layers of the same muscle, these changes varied considerably in degree. Thus the gastrocnemius and soleus muscles displayed only minor or no alterations.
| Author | : Ernest W. Johnson |
| Publisher | : Lippincott Williams & Wilkins |
| Total Pages | : 424 |
| Release | : 1997 |
| Genre | : Medical |
| ISBN | : |
Reflecting a modern approach to electromyography, this edition includes new chapters on normal and abnormal neurophysiology, electromyography in children, and unusual studies. There is an emphasis on new techniques, needle stimulation and recording, and the use of electromyography in prognosis and management. Computer applications are integrated into the text, and there are updated discussions of carpal tunnel syndrome, radiculopathy and entrapments - including prognosis.
| Author | : Andrew S. Blum |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 515 |
| Release | : 2007-09-26 |
| Genre | : Medical |
| ISBN | : 1597452718 |
This book presents a broad yet focused treatment of central topics in the field of clinical neurophysiology. The volume was inspired by the clinical neurophysiology lecture series at Beth Israel-Deaconess Medical Center and Rhode Island Hospital. Much like the lecture series, this book is designed to acquaint trainees with the essential elements of clinical neurophysiology. Each chapter is written by leading and respected clinical neurophysiologists.
| Author | : Eleanor Criswell |
| Publisher | : Jones & Bartlett Learning |
| Total Pages | : 436 |
| Release | : 2011 |
| Genre | : Medical |
| ISBN | : 0763732745 |
This book provides an introduction to the basics of surface electromyography and a detailed atlas for electrode placement.
