Task-dependent facilitation of motor evoked potentials during dynamic and steady muscle contractions.

abstract：:Hereditary neuropathy with liability to pressure palsies (HNPP) is an autosomal dominant disorder characterized by recurrent mononeuropathies or brachial plexopathies, commonly associated with a chromosome 17p11.2-12 deletion encompassing the peripheral myelin protein-22 (PMP22) gene. We tried to identify criteria dis...

journal_title：Muscle & nerve

authors： Pareyson D,Solari A,Taroni F,Botti S,Fallica E,Scaioli V,Ciano C,Sghirlanzoni A

更新日期：1998-12-01 00:00:00

abstract：:Type 1 diabetes mellitus (T1DM) is associated with a peripheral neuropathy that reduces nerve conduction velocity. This may impair high motor-unit discharge frequencies (MUDF), decrease muscle activation, and curtail the ability to sustain repetitive contractile tasks. We examined (1) whether MUDF, the contractile pro...

journal_title：Muscle & nerve

authors： Almeida S,Riddell MC,Cafarelli E

更新日期：2008-02-01 00:00:00

abstract：INTRODUCTION:Contradictory reports of the myosin heavy chain (MHC) composition of adult human suprahyoid muscles leave unresolved the extent to which these muscles express developmental and unconventional MHC. METHODS:By immunohistochemistry, separation sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PA...

journal_title：Muscle & nerve

authors： Luo Q,Douglas M,Burkholder T,Sokoloff AJ

更新日期：2014-04-01 00:00:00

abstract：:Single-fiber electromyography (SFEMG) demonstrates abnormal jitter in virtually all (99%) patients with myasthenia gravis (MG). One muscle, the extensor digitorum communis, is abnormal in most patients with this disease, but to obtain the maximum diagnostic sensitivity, it may be necessary to examine other muscles, es...

journal_title：Muscle & nerve

authors： Sanders DB,Howard JF Jr

更新日期：1986-11-01 00:00:00

abstract：:In anterior interosseous nerve syndrome and ulnar neuropathy, paralysis or weakness of the flexor digitorum profundus (FDP) muscles has been shown to vary according to the degree of involvement of the median and ulnar nerves, respectively. We traced these nerves in 50 cadaveric specimens in which each FDP was complete...

journal_title：Muscle & nerve

authors： Oh CS,Won HS,Lee KS,Chung IH,Kim SM

更新日期：2009-04-01 00:00:00

abstract：:The effect of endurance training on muscle electrical activity during general exercise testing was investigated in physically active patients with chronic obstructive pulmonary disease (COPD). Before and after rehabilitation, patients performed identical incremental exercise tests. Pulmonary gas exchange, venous lacta...

journal_title：Muscle & nerve

authors： Gosselin N,Lambert K,Poulain M,Martin A,Préfaut C,Varray A

更新日期：2003-12-01 00:00:00

abstract：:The purpose of the present study was to establish the relationship between muscle architecture and H-reflex recordings in quadriceps femoris muscle. H-reflexes were elicited in human quadriceps femoris muscle over a broad area of skin to document the shape and amplitude of the H-potentials. This, in combination with r...

journal_title：Muscle & nerve

authors： Garland SJ,Gerilovsky L,Enoka RM

更新日期：1994-06-01 00:00:00

abstract：:The purpose of the study was to identify factors that could predict differences among individuals in the time to failure of a submaximal contraction. Twenty subjects (10 men, 25+/-6 years) supported an inertial load equivalent to 20% of the maximal voluntary contraction (MVC) force with the elbow flexor muscles for as...

journal_title：Muscle & nerve

authors： Rudroff T,Christou EA,Poston B,Bojsen-Møller J,Enoka RM

更新日期：2007-05-01 00:00:00

abstract：:Electrophysiologic findings in thallium intoxication are usually untimely, limited in extent, and often uninformative. This report documents serial conduction and electromyographic findings in a case of thallium poisoning, beginning 10 days after symptom onset and ending 24 months later. Initially, the plantar nerves ...

journal_title：Muscle & nerve

authors： Dumitru D,Kalantri A

更新日期：1990-05-01 00:00:00

abstract：:We have identified a novel missense mutation in the myophosphorylase gene in a Spanish patient with McArdle's disease. The patient was homozygous for a T-to-C transition at codon 115 (L115P) in exon 3, which changed an encoded leucine (CUG) to a proline (CCG). This is the first mutation to be described in exon 3 and i...

journal_title：Muscle & nerve

authors： Gamez J,Fernandez R,Bruno C,Andreu AL,Cervera C,Navarro C,Schwartz S,Dimauro S

更新日期：1999-08-01 00:00:00

abstract：:Excitability properties were recorded from 14 volunteers following stimulation of the recurrent motor branch of the median nerve in the palm. Distal stimulation resulted in significantly lower strength-duration time constant and lower threshold during prolonged hyperpolarization than did wrist stimulation in the same ...

journal_title：Muscle & nerve

authors： Walters RJ,Kiernan MC,Murray NM,Bostock H

更新日期：2001-12-01 00:00:00

abstract：:Previous studies suggest that the muscle fiber lysosome system plays a central role in the increased formation of autophagosomes and autolysosomes that occurs in the context of chloroquine-induced myopathy. The goal of this study was to characterize the contribution of receptor-mediated intracellular transport, partic...

journal_title：Muscle & nerve

authors： Masuda T,Ueyama H,Nakamura K,Jikumaru M,Toyoshima I,Kumamoto T

更新日期：2005-04-01 00:00:00

abstract：:The absolute number of satellite cells (SC) in young and adult rat skeletal muscle was estimated by correlating data from light and electron microscopic quantitation of myofiber nuclei (myonuclei and satellite cell nuclei) with biochemical assays for determining total muscle DNA content. Expressed both as a proportion...

journal_title：Muscle & nerve

authors： Gibson MC,Schultz E

更新日期：1983-10-01 00:00:00

abstract：INTRODUCTION:Many prognostic factors have been studied in carpal tunnel decompression, but most studies consider only a subset of variables. METHODS:Three thousand three hundred thirty-two operations were used to develop prognostic models, and 885 operations were used for validation. Outcome recorded on a Likert scale...

journal_title：Muscle & nerve

authors： Bowman A,Rudolfer S,Weller P,Bland JDP

更新日期：2018-12-01 00:00:00

abstract：:To define numerically the clinical severity of facioscapulohumeral muscular dystrophy (FSHD), we developed a protocol that quantifies muscle weakness by combining the functional evaluation of six muscle groups affected in this disease. To validate reproducibility of the protocol, 69 patients were recruited. Each patie...

journal_title：Muscle & nerve

authors： Lamperti C,Fabbri G,Vercelli L,D'Amico R,Frusciante R,Bonifazi E,Fiorillo C,Borsato C,Cao M,Servida M,Greco F,Di Leo R,Volpi L,Manzoli C,Cudia P,Pastorello E,Ricciardi L,Siciliano G,Galluzzi G,Rodolico C,Santoro L

更新日期：2010-08-01 00:00:00

abstract：:Technical and instrumentation factors play an important role in obtaining reliable information during electrodiagnostic studies. With contemporary electrodiagnostic equipment, neurophysiologic potentials are detected using a variety of electrodes and undergo differential amplification, filtering, conversion to digital...

journal_title：Muscle & nerve

authors： Gitter AJ,Stolov WC

更新日期：1995-08-01 00:00:00

abstract：INTRODUCTION:The main goal of this study was to determine the contribution of the anterior forearm muscles to the compound muscle action potential (CMAP) recorded from the extensor digitorum (ED) after proximal stimulation. METHODS:Twenty-one healthy volunteers and 114 patients with compressive and traumatic radial ne...

journal_title：Muscle & nerve

authors： Khodulev VI,Nechipurenko NI,Shcharbina NY

更新日期：2020-09-01 00:00:00

abstract：:The purpose of this study was to establish normal values of muscle thickness, ratio of muscle thickness to subcutaneous fat thickness, and muscle echo intensity in children between 11 weeks and 16 years of age. Transverse scans of four muscles were made by standardized real-time ultrasound examination. The scans were ...

journal_title：Muscle & nerve

authors： Scholten RR,Pillen S,Verrips A,Zwarts MJ

更新日期：2003-06-01 00:00:00

abstract：INTRODUCTION:We investigated interrater reliability of overall assessment of nerve root lesions by electrodiagnostic testing (EDX) in neonatal brachial plexus palsy (NBPP). METHODS:Two blinded, board-certified reviewers retrospectively reviewed de-identified EDX data from 37 infants with NBPP for 2005-2012. Only nerve...

journal_title：Muscle & nerve

authors： Spires MC,Brown SM,Chang KW,Leonard JA,Yang LJ

更新日期：2017-01-01 00:00:00

abstract：INTRODUCTION:Pompe disease is a progressive and debilitating neuromuscular disorder that presents with a heterogeneous array of signs and symptoms including proximal muscle weakness, respiratory insufficiency, and/or elevated creatine kinase levels. It mimics other neuromuscular disorders, making its diagnosis challeng...

journal_title：Muscle & nerve

authors： Dubrovsky A,Corderi J,Karasarides T,Taratuto AL

更新日期：2013-04-01 00:00:00

abstract：:Five members of the same family, along three generations, presented with hypertrophic cardiomyopathy. Neurological examination, muscle strength, electromyography, and serum creatine kinase were normal. Skeletal muscle biopsy showed abnormal lipid accumulation and carnitine deficiency. In three patients the cardiac sym...

journal_title：Muscle & nerve

authors： Bautista J,Rafel E,Martinez A,Sainz I,Herrera J,Segura L,Chinchon I

更新日期：1990-03-01 00:00:00

abstract：INTRODUCTION:Low-intensity electrical stimuli of digital nerves may generate a double peak potential (DPp), composed of a cathodal (caAP) and an anodal (anAP) potential in orthodromic recordings. METHODS:We studied the effects on caAP and anAP of stimuli of variable intensity, duration, and frequency. We also applied ...

journal_title：Muscle & nerve

authors： Leote J,Pereira P,Cabib C,Cipullo F,Valls-Sole J

更新日期：2016-06-01 00:00:00

abstract：:Immunocytochemical analysis of muscle specimens from 5 patients with acute quadriplegic myopathy indictes that depletion of either fast or slow myosin occurs in this disorder. The initial lesion consists of focal myosin loss in nonatrophic fibers. Other structural proteins (actin, titin, nebulin) are spared or affecte...

journal_title：Muscle & nerve

authors： Showalter CJ,Engel AG

更新日期：1997-03-01 00:00:00

abstract：:Metabolic costs of force generation were compared for constant-frequency and catchlike-inducing electrical stimulation. Repetitive catchlike-inducing trains consisted of 2 interpulse intervals (IPIs) at 12.5 ms, 1 IPI at 25 ms, and 5 IPIs at 50 ms. Constant-frequency trains consisted of 8 IPIs at 37.5 ms. One train wa...

journal_title：Muscle & nerve

authors： Ratkevicius A,Quistorff B

更新日期：2002-03-01 00:00:00

abstract：INTRODUCTION:Posttraumatic elbow contracture is clinically challenging because injury often disrupts multiple periarticular soft tissues. Tissue specific contribution to contracture, particularly muscle, remains poorly understood. METHODS:In this study we used a previously developed animal model of elbow contracture. ...

journal_title：Muscle & nerve

authors： Dunham CL,Chamberlain AM,Meyer GA,Lake SP

更新日期：2018-12-01 00:00:00

abstract：:Genetically homozygous line 413 dystrophic chickens were given twice-daily intraperitoneal injections of solutions containing branched-chain amino acids (BCCA-leucine, valine, isoleucine) either alone or in combination; and their alpha-ketoacid analogs (alpha-ketoisocaproic and alpha-ketoisovaleric acids). Another tri...

journal_title：Muscle & nerve

authors： Hudecki MS,Pollina CM,Heffner RR

更新日期：1982-07-01 00:00:00

abstract：INTRODUCTION:An open-label trial suggested that valproic acid (VPA) improved strength in adults with spinal muscular atrophy (SMA). We report a 12-month, double-blind, cross-over study of VPA in ambulatory SMA adults. METHODS:There were 33 subjects, aged 20–55 years, included in this investigation. After baseline asse...

journal_title：Muscle & nerve

authors： Kissel JT,Elsheikh B,King WM,Freimer M,Scott CB,Kolb SJ,Reyna SP,Crawford TO,Simard LR,Krosschell KJ,Acsadi G,Schroth MK,D'Anjou G,LaSalle B,Prior TW,Sorenson S,Maczulski JA,Swoboda KJ,Project Cure Spinal Muscular Atr

更新日期：2014-02-01 00:00:00

abstract：:Infantile botulism is a recently recognized cause of acute hypotonic paresis and respiratory failure in young infants. Electrophysiological testing has proven useful in early diagnosis in suspected cases by demonstrating abnormal neuromuscular transmission as is known to occur in botulism. Twenty-five infants with bac...

journal_title：Muscle & nerve

authors： Cornblath DR,Sladky JT,Sumner AJ

更新日期：1983-07-01 00:00:00

abstract：:The aim of this study was to estimate normal jitter in voluntarily activated extensor digitorum communis (EDC) and orbicularis oculi (OOc) muscles using a disposable concentric needle electrode (CNE). The EDC of 67 normal subjects (22 males and 45 females, mean age 35.5 +/- 10.2 years) and the OOc of 50 normal subject...

journal_title：Muscle & nerve

authors： Kouyoumdjian JA,Stålberg EV

更新日期：2008-06-01 00:00:00

abstract：:We prospectively evaluated thalidomide-induced neuropathy using electrodiagnostic studies. Sixty-seven men with metastatic androgen-independent prostate cancer in an open-label trial of oral thalidomide underwent neurologic examinations and nerve conduction studies (NCS) prior to and at 3-month intervals during treatm...

journal_title：Muscle & nerve

authors： Molloy FM,Floeter MK,Syed NA,Sandbrink F,Culcea E,Steinberg SM,Dahut W,Pluda J,Kruger EA,Reed E,Figg WD

更新日期：2001-08-01 00:00:00