Fluctuations in motor output during steady contractions are weakly related across contraction types and between hands.

Abstract:

:The presence of differences in motor unit activity across contraction types and between hands suggests that the magnitude of fluctuations in motor output is only weakly related when these conditions are compared. Twenty right-handed young (24.1 +/- 5.3 years) and old (72.5 +/- 4.9 years) adults performed three levels (

journal_name

Muscle Nerve

journal_title

Muscle & nerve

authors

Shinohara M,Keenan KG,Enoka RM

doi

10.1002/mus.20326

subject

Has Abstract

pub_date

2005-06-01 00:00:00

pages

741-50

issue

6

eissn

0148-639X

issn

1097-4598

journal_volume

31

pub_type

杂志文章
  • Comparison of electric and magnetic coil stimulation in the supraclavicular region.

    abstract::We compared the compound motor action potentials (CMAPs) evoked in the biceps, triceps, and abductor digiti minimi (ADM) muscles by conventional electrical stimulation at Erb's point (EP), and by magnetic coil stimulation of the supraclavicular region in 11 normal subjects. We found that magnetic coil stimulation was ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880150509

    authors: Cros D,Gominak S,Shahani B,Fang J,Day B

    更新日期:1992-05-01 00:00:00

  • Properties of extensor digitorum longus muscle and skinned fibers from adult and aged male and female Actn3 knockout mice.

    abstract::Absence of α-actinin-3, encoded by the ACTN3 "speed gene," is associated with poorer sprinting performance in athletes and a slowing of relaxation in fast-twitch muscles of Actn3 knockout (KO) mice. Our first aim was to investigate, at the individual-fiber level, possible mechanisms for this slowed relaxation. Our sec...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.21778

    authors: Chan S,Seto JT,Houweling PJ,Yang N,North KN,Head SI

    更新日期:2011-01-01 00:00:00

  • Muscle weakness and functional disability in patients with myasthenia gravis.

    abstract:INTRODUCTION:Muscle weakness and functional disability have not been evaluated in a population-based study of patients with myasthenia gravis (MG). METHODS:All patients with MG in a well-defined catchment area were identified in the Danish National Patient Registry. Of the 175 eligible patients, 90 participated and we...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.26356

    authors: Vinge L,Jakobsen J,Andersen H

    更新日期:2019-02-01 00:00:00

  • Optimal location for eliciting the tibial H-reflex and motor response.

    abstract:INTRODUCTION:Although there are numerous protocols to adjust the amplitude of the Hoffmann reflex (H-reflex) relative to the size of the direct motor response (M-response), the optimal stimulating location has not been described. We sought to determine the optimal positioning of the stimulating cathode when evoking the...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.26308

    authors: Özyurt MG,Shabsog M,Dursun M,Türker KS

    更新日期:2018-12-01 00:00:00

  • Satisfaction with ankle foot orthoses in individuals with Charcot-Marie-Tooth disease.

    abstract:BACKGROUND:Ankle foot orthoses (AFOs) are commonly prescribed to individuals with Charcot-Marie-Tooth disease (CMT). The aim of this study was to evaluate patient reported satisfaction with orthotic devices and services in individuals with CMT to provide preliminary data for advancing AFO development and improving clin...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.27027

    authors: Zuccarino R,Anderson KM,Shy ME,Wilken JM

    更新日期:2021-01-01 00:00:00

  • Membrane alterations in skeletal muscle fibers of dystrophic mice.

    abstract::Skeletal muscle fibers from dystrophic mice and littermate controls (ReJ-129) were characterized electrically and then injected with an intracellular marker. In this way they could be identified for examination with an electron microscope to correlate the relative time course of electrical and ultrastructural alterati...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880060104

    authors: Kerr LM,Sperelakis N

    更新日期:1983-01-01 00:00:00

  • Upper limb predominant, multifocal chronic inflammatory demyelinating polyneuropathy.

    abstract::Chronic inflammatory demyelinating polyneuropathy (CIDP) presents in rare instances with focal or multifocal upper limb involvement. We reviewed the clinical and electromyographic (EMG) characteristics of 10 such patients (UL-CIDP) and compared them with patients with typical generalized CIDP (G-CIDP) and multifocal m...

    journal_title:Muscle & nerve

    pub_type: 临床试验,杂志文章

    doi:10.1002/(sici)1097-4598(199906)22:6<758::aid-mus13

    authors: Gorson KC,Ropper AH,Weinberg DH

    更新日期:1999-06-01 00:00:00

  • Feasibility of Muscle Activity Assessment With Surface Electromyography During Bed Cycling Exercise In Intensive Care Unit Patients.

    abstract:INTRODUCTION:Intensive care unit (ICU) patients often develop weakness. Rehabilitation is initiated early to prevent physical deterioration, but knowledge of optimal training schedules is lacking. A reliable method to assess muscle activity during exercise is needed. In this study we explored the feasibility of electri...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.26330

    authors: Sommers J,Van Den Boorn M,Engelbert RHH,Nollet F,Van Der Schaaf M,Horn J

    更新日期:2018-11-01 00:00:00

  • The physiological basis of conduction slowing in ALS patients homozygous for the D90A CuZn-SOD mutation.

    abstract::Familial amyotrophic lateral sclerosis (ALS) with the autosomal-recessively inherited D90A CuZn-superoxide dismutase (CuZn-SOD) mutation is characterized by a stereotypic slowly progressive, distinctive phenotype and very slow central motor conduction. To determine the basis of this slowing, we assessed corticomotoneu...

    journal_title:Muscle & nerve

    pub_type: 临床试验,杂志文章

    doi:10.1002/1097-4598(200101)24:1<89::aid-mus10>3.0.co

    authors: Weber M,Eisen A,Stewart HG,Andersen PM,Hirota N

    更新日期:2001-01-01 00:00:00

  • A novel mutation in the central rod domain of lamin A/C producing a phenotype resembling the Emery-Dreifuss muscular dystrophy phenotype.

    abstract::Lamins are the principal components of the nuclear lamina, a network constituting the major structural framework of the nuclear envelope. Alterations in lamin A/C have been associated with a heterogeneous series of human disorders known as laminopathies. We report the finding of a novel deletion in the central rod dom...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.20879

    authors: Maioli MA,Marrosu G,Mateddu A,Solla E,Carboni N,Tacconi P,Lai C,Marrosu MG

    更新日期:2007-12-01 00:00:00

  • A prognostic model for the patient-reported outcome of surgical treatment of carpal tunnel syndrome.

    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

    pub_type: 杂志文章

    doi:10.1002/mus.26297

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

    更新日期:2018-12-01 00:00:00

  • Hexosaminidase A activity and amyotrophic lateral sclerosis.

    abstract::Abnormalities of GM2 ganglioside metabolism owing to hexosaminidase A (Hex A) deficiency have been associated with ALS phenotypes. The clinical features described in these ALS patients with Hex A deficiency include early onset, positive family history, and/or long disease duration. In an attempt to determine prospecti...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880110307

    authors: Gudesblatt M,Ludman MD,Cohen JA,Desnick RJ,Chester S,Grabowski GA,Caroscio JT

    更新日期:1988-03-01 00:00:00

  • Electrical stimulation impairs early functional recovery and accentuates skeletal muscle atrophy after sciatic nerve crush injury in rats.

    abstract::Neuromuscular recovery after peripheral nerve lesion depends on the regeneration of severed axons that re-establish their functional connection with the denervated muscle. The aim of this study was to determine the effects of electrical stimulation (ES) on the neuromuscular recovery after nerve crush injury in rats. E...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.21549

    authors: Gigo-Benato D,Russo TL,Geuna S,Domingues NR,Salvini TF,Parizotto NA

    更新日期:2010-05-01 00:00:00

  • Double-step repetitive stimulation in myasthenia gravis.

    abstract::The double-step technique of repetitive nerve stimulation was compared with repetitive nerve stimulation to a distal and a proximal muscle and with single fiber needle electromyography in 10 patients with myasthenia gravis. We conclude that the double-step technique is slightly more sensitive than repetitive nerve sti...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880100306

    authors: Gilchrist JM,Sanders DB

    更新日期:1987-03-01 00:00:00

  • CMAP variability as a function of electrode site and size.

    abstract::The site of the recording electrode influences the amplitude of the compound muscle action potential (CMAP) and its variation over a length of nerve. The effects of large electrodes on this source of intraindividual variability were assessed. Right median nerves of 20 healthy subjects were studied, and recordings made...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880180110

    authors: van Dijk JG,Tjon-a-Tsien A,van der Kamp W

    更新日期:1995-01-01 00:00:00

  • Fibrillation and accelerated AChR degradation in long-term muscle organ culture.

    abstract::Evaluation of the precise molecular dynamics of endplate maintenance and reorganization has been limited by the lack of available in vitro preparations. We describe an organ culture preparation of mouse diaphragm muscle which permits long-term maintenance of muscle viability. Spontaneous fibrillations, increased level...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880141012

    authors: Wetzel DM,Salpeter MM

    更新日期:1991-10-01 00:00:00

  • The relation between conduction velocity and axonal length.

    abstract::Motor evoked potentials (MEPs) obtained by electrical root stimulation and F waves were used to examine the proximal nerve conduction velocity (CV) to tibialis anterior (TA), extensor digitorum brevis (EDB), flexor carpi radialis (FCR), and abductor pollicis brevis (APB) muscles in 40 humans. By subtracting motor late...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880181105

    authors: Zwarts MJ,Guechev A

    更新日期:1995-11-01 00:00:00

  • Skin biopsy in assessing meralgia paresthetica.

    abstract:INTRODUCTION:Meralgia paresthetica is a focal neuropathy caused by compression of the lateral femoral cutaneous nerve (LFCN). The disease can be difficult to assess by neurophysiological or imaging studies. METHODS:We studied 5 patients who presented to our neuromuscular clinic from April 2012 to December 2014 with a ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.25044

    authors: Wongmek A,Shin S,Zhou L

    更新日期:2016-04-01 00:00:00

  • Treadmill training-induced adaptations in muscle phenotype in persons with incomplete spinal cord injury.

    abstract::Body weight-supported treadmill (BWST) training has been shown to improve ambulatory capacity in persons with a spinal cord injury (SCI); however, the effect that BWST training has on skeletal muscle phenotype is unknown. We aimed to determine whether 6 months (three sessions/week) of BWST training in neurologically s...

    journal_title:Muscle & nerve

    pub_type: 临床试验,杂志文章

    doi:10.1002/mus.20048

    authors: Stewart BG,Tarnopolsky MA,Hicks AL,McCartney N,Mahoney DJ,Staron RS,Phillips SM

    更新日期:2004-07-01 00:00:00

  • Ultrasound elastography assessment of the median nerve in leprosy patients.

    abstract:INTRODUCTION:We sought to compare median nerve elasticity between leprosy patients (LPs) and healthy volunteers (HVs) using ultrasound elastography (UE). METHODS:Two radiologists independently measured the strain ratio of the median nerve/flexor digitorum superficialis muscle (MN/FDSM) of 18 LP and 18 HV using real-ti...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.25510

    authors: Nogueira-Barbosa MH,Lugão HB,Gregio-Júnior E,Crema MD,Kobayashi MTT,Frade MAC,Pavan TZ,Carneiro AAO

    更新日期:2017-09-01 00:00:00

  • Reliability of hand-held dynamometry in spinal muscular atrophy.

    abstract::We have assessed the reliability of hand-held myometry in 33 patients with spinal muscular atrophy (SMA), testing elbow flexion, handgrip, three-point pinch, knee flexion, knee extension, and foot dorsiflexion, and determining intraclass correlation coefficients (ICC). Interrater reliability was high for upper limbs, ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章,多中心研究

    doi:10.1002/mus.10166

    authors: Merlini L,Mazzone ES,Solari A,Morandi L

    更新日期:2002-07-01 00:00:00

  • Acute morphologic changes in orbicularis oculi muscle after doxorubicin injection into the eyelid.

    abstract::This study attempts to gain a better understanding of the primary cause of doxorubicin myotoxicity to aid in the development of a protocol to increase its effectiveness in treating muscle spasm diseases. The time course of acute injury to the orbicularis oculi muscle after injection of doxorubicin into the eyelids of ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880160708

    authors: McLoon LK,Luo XX,Wirtschafter J

    更新日期:1993-07-01 00:00:00

  • Chronic peripheral nerve compression disrupts paranodal axoglial junctions.

    abstract:INTRODUCTION:Peripheral nerves are often exposed to mechanical stress leading to compression neuropathies. The pathophysiology underlying nerve dysfunction by chronic compression is largely unknown. METHODS:We analyzed molecular organization and fine structures at and near nodes of Ranvier in a compression neuropathy ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.25273

    authors: Otani Y,Yermakov LM,Dupree JL,Susuki K

    更新日期:2017-04-01 00:00:00

  • A review of techniques employed to estimate the number of motor units in a muscle.

    abstract::Being the smallest functional units under neural control, motor units play an integral role in muscle physiology. However, at the present time, there does not exist any widely accepted technique for quantifying or estimating the number of motor units in a muscle. Specifically, the existing techniques are the increment...

    journal_title:Muscle & nerve

    pub_type: 杂志文章,评审

    doi:10.1002/mus.880131108

    authors: Slawnych MP,Laszlo CA,Hershler C

    更新日期:1990-11-01 00:00:00

  • The effect of fatigue on knee position sense is not dependent upon the muscle group fatigued.

    abstract:INTRODUCTION:Muscle fatigue could have a greater impact on position sense when antagonists of the movement are fatigued. Hence, this study aimed to compare the effects of antagonist and agonist exercise-induced muscle fatigue on knee joint position sense. METHODS:This within-subjects repeated-measures study included 4...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.22018

    authors: Ribeiro F,Venâncio J,Quintas P,Oliveira J

    更新日期:2011-08-01 00:00:00

  • Ultrasonographic assessment of longitudinal median nerve and hand flexor tendon dynamics in carpal tunnel syndrome.

    abstract:INTRODUCTION:Changes in subsynovial connective tissue (SSCT) in carpal tunnel syndrome (CTS) patients may result in altered dynamics; consequently, quantification of these dynamics might support objective diagnosis of CTS. METHODS:We measured and compared longitudinal excursion of the flexor digitorum superficialis an...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.23246

    authors: Korstanje JW,Scheltens-De Boer M,Blok JH,Amadio PC,Hovius SE,Stam HJ,Selles RW

    更新日期:2012-05-01 00:00:00

  • Effect of spinal cord TRH deficiency on lower motorneuron function in the rat.

    abstract::Thyrotropin-releasing hormone (TRH), present in high concentrations in the mammalian spinal cord, exerts excitatory effects on the alpha-motorneuron (AMN) via axodendritic contacts. We used the neurotoxin 5,7-dihydroxytryptamine (5,7-DHT) to deplete TRH from the ventral horn of the spinal cord of adult rats to determi...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880100504

    authors: Van den Bergh P,Kelly JJ Jr,Adelman L,Munsat TL,Jackson IM,Lechan RM

    更新日期:1987-06-01 00:00:00

  • The risk of iatrogenic pneumothorax after electromyography.

    abstract:INTRODUCTION:Pneumothorax is a potentially serious complication of electromyography (EMG). Data on the frequency of pneumothorax after EMG are lacking. The purpose of this study was to determine the frequency, timing, and risk factors for iatrogenic pneumothorax after EMG. METHODS:Cases of pneumothorax after EMG were ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.24883

    authors: Kassardjian CD,O'gorman CM,Sorenson EJ

    更新日期:2016-04-01 00:00:00

  • Effects of temperature and fatigue on the electromechanical delay components.

    abstract:INTRODUCTION:Neuromuscular activation can be influenced by both muscle temperature (Tm) and fatigue. METHODS:To assess the effects of Tm and fatigue on the electromechanical delay (EMD), 15 participants performed voluntary isometric contractions of different intensities under neutral (TmN), low (TmL), and high (TmH) T...

    journal_title:Muscle & nerve

    pub_type: 杂志文章,随机对照试验

    doi:10.1002/mus.23627

    authors: Cè E,Rampichini S,Agnello L,Limonta E,Veicsteinas A,Esposito F

    更新日期:2013-04-01 00:00:00

  • Skeletal muscle involvement in human immunodeficiency virus (HIV)-infected patients in the era of highly active antiretroviral therapy (HAART).

    abstract::Skeletal muscle involvement can occur at all stages of human immunodeficiency virus (HIV) infection, and may represent the first manifestation of the disease. Myopathies in HIV-infected patients are classified as follows: (1) HIV-associated myopathies and related conditions, including HIV polymyositis, inclusion-body ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章,评审

    doi:10.1002/mus.20338

    authors: Authier FJ,Chariot P,Gherardi RK

    更新日期:2005-09-01 00:00:00