Reference jitter values for concentric needle electrodes in voluntarily activated extensor digitorum communis and orbicularis oculi muscles.

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 subjects (13 males and 37 females, mean age 37.9 +/- 9.6 years) were studied. Jitter values were expressed as the mean consecutive difference (MCD) of 20 potential pairs. The mean MCD for EDC was 23.6 +/- 3.1 micros (upper 95% confidence limit [CL]: 29.7 micros). The mean MCD of all potential pairs (n = 1340) was 23.5 +/- 7.3 micros (95% CL: 38.2 micros). The mean MCD for the 18th highest value was 31.4 +/- 4.9 micros (95% CL: 41.2 micros). The mean MCD for OOc was 24.7 +/- 3.1 micros (95% CL: 31.0 micros). The mean MCD of all potential pairs (n = 1000) was 24.7 +/- 7.1 micros (95% CL: 39.0 micros). The mean MCD for the 18th highest value was 32.7 +/- 4.1 micros (95% CL: 40.9 micros). Our reported CNE jitter values obtained during voluntary activation represent the largest series currently available. The suggested practical limit in the EDC for mean MCD was 30 mus and for outliers was 42 micros, and in the OOc for mean MCD was 31 micros and 41 micros for outliers. The present study confirms that CNE can be used to assess jitter values, although certain precautions must be taken.

journal_name

Muscle Nerve

journal_title

Muscle & nerve

authors

Kouyoumdjian JA,Stålberg EV

doi

10.1002/mus.21043

subject

Has Abstract

pub_date

2008-06-01 00:00:00

pages

694-9

issue

6

eissn

0148-639X

issn

1097-4598

journal_volume

37

pub_type

杂志文章
  • Neuromuscular complications of connective tissue diseases.

    abstract::The connective tissue diseases, such as rheumatoid arthritis, Sjögren's syndrome, systemic lupus erythematosus, systemic sclerosis, and vasculitis, may cause various disorders of the peripheral nervous system. In this review, the clinical effects of the connective tissues diseases on nerve and muscle are examined with...

    journal_title:Muscle & nerve

    pub_type: 杂志文章,评审

    doi:10.1002/1097-4598(200102)24:2<154::aid-mus20>3.0.c

    authors: Rosenbaum R

    更新日期:2001-02-01 00:00:00

  • Protein degradation in cultured skeletal muscle from Duchenne muscular dystrophy patients.

    abstract::The loss of contractile protein in Duchenne muscular dystrophy could result from low rates of synthesis, abnormally high rates of protein degradation, or a combination of both. We measured overall protein degradation rates in cultured human muscle cells obtained at biopsy from patients with Duchenne dystrophy or vario...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880080312

    authors: Neville HE,Harrold S

    更新日期:1985-03-01 00:00:00

  • Acquired neuromyotonia and peripheral neuropathy in a patient with Hodgkin's disease.

    abstract::Acquired neuromyotonia is characterized by hyperexcitability of motor nerves resulting in continuous muscle fiber activity. It occurs most often as a paraneoplastic syndrome in patients with cancers of the immune system. Antibodies against voltage-gated potassium channels (VGKCs) have been detected in some patients. P...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.1078

    authors: Lahrmann H,Albrecht G,Drlicek M,Oberndorfer S,Urbanits S,Wanschitz J,Zifko UA,Grisold W

    更新日期:2001-06-01 00:00:00

  • Coexistent autoimmune autonomic ganglionopathy and myasthenia gravis associated with non-small-cell lung cancer.

    abstract::We report the case of a 55-year-old man with non-small-cell lung cancer who underwent radiation, chemotherapy with carbotaxol and paclitaxel, and left upper lobe removal 2 years prior to evaluation. He was referred for disabling orthostatic hypotension (113/69 mm Hg supine and 66/47 mm Hg standing after 10 minutes) wi...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.21528

    authors: Peltier AC,Black BK,Raj SR,Donofrio P,Robertson D,Biaggioni I

    更新日期:2010-03-01 00:00:00

  • Myasthenia gravis associated with HTLV-I infection and atypical brain lesions.

    abstract::We report a patient who experienced progressive diplopia and distal weakness of the upper limbs. Magnetic resonance imaging of the brain showed extensive white matter lesions and analysis of cerebrospinal fluid revealed acute human T-lymphotropic virus type I (HTLV-I) infection. Myasthenia gravis (MG) was evidenced by...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.20694

    authors: Lalive PH,Allali G,Truffert A

    更新日期:2007-04-01 00:00:00

  • Quantitative evaluation of hand motor function using a gyrosensor in mild and moderate carpal tunnel syndrome.

    abstract:INTRODUCTION:The objective of this study was to determine whether patients with carpal tunnel syndrome (CTS) manifest changes in early-stage motor function and to investigate the utility of a gyrosensor for quantitative evaluation of motor function. METHODS:Angular velocity signal was measured during finger tapping in...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.26424

    authors: Seok HY,Kim JW,Kim YH,Park MH,Kwon DY

    更新日期:2019-04-01 00:00:00

  • Nerve conduction abnormalities in aging mice deficient for myelin-associated glycoprotein.

    abstract::Ultrastructural, biochemical, and electrophysiological analyses were done on 12-14-month-old mice deficient for myelin-associated glycoprotein (MAG) to further characterize the neuropathy that develops as they age. Electron microscopy demonstrated normal myelin compaction and axonal degeneration in a large number of m...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.1159

    authors: Weiss MD,Luciano CA,Quarles RH

    更新日期:2001-10-01 00:00:00

  • Endocannabinoids and related lipids in serum from patients with amyotrophic lateral sclerosis.

    abstract:BACKGROUND:The goals of this study were to determine whether serum concentrations of endocannabinoids (eCB) and related lipids predict disease status in patients with amyotrophic lateral sclerosis (ALS) relative to healthy controls, and whether concentrations correlate with disease duration and severity. METHODS:Serum...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.27096

    authors: Carter GT,McLaughlin RJ,Cuttler C,Sauber GJ,Weeks DL,Hillard CJ,Weiss MD

    更新日期:2021-01-01 00:00:00

  • Safety of influenza and H1N1 vaccinations in patients with myasthenia gravis, and patient compliance.

    abstract::Myasthenia gravis (MG) exacerbations may be triggered by infections.In the winter of 2009/2010, the Israeli Ministry of Health recommended that each individual with a chronic condition be vaccinated against both the seasonal influenza and the H1N1 virus. We examined vaccination practices in 74 MG patients. Only 38 pat...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.22077

    authors: Auriel E,Regev K,Dori A,Karni A

    更新日期:2011-06-01 00:00:00

  • Growth and denervation response of skeletal muscle fibers of newborn rats.

    abstract::The cross-sectional area of the fibers of hindlimb muscles of rats increased 10-40 times during the first 6 weeks after birth. Denervation at birth stopped the growth of the muscle fibers. The number of satellite cells decreased, and eventually all fibers vanished. Reinnervation, if any, was poor. Partial denervation ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880130509

    authors: Schmalbruch H

    更新日期:1990-05-01 00:00:00

  • Two types of mitochondrial crystals in diseased human skeletal muscle fibers.

    abstract::Mitochondrial crystalline inclusions, frequently found in mitochondrial myopathies, were analyzed by crystallographic techniques and computer-aided image processing. It could be shown that these structures were real crystals. There are two distinct types of crystal, which can be distinguished by shape, size, and patte...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880110109

    authors: Farrants GW,Hovmöller S,Stadhouders AM

    更新日期:1988-01-01 00:00:00

  • Perioral reflexes in orofacial dyskinesia and spasmodic dysphonia.

    abstract::In order to assess the clinical utility of trigemino-facial reflexes in lower facial muscles, we studied perioral reflexes to mechanical and electrical stimulation in 13 patients with spasmodic dysphonia and orofacial dyskinesia and in 7 healthy subjects. Mechanical stimulation of the upper lip of all patients and ele...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880150906

    authors: Topka H,Hallett M

    更新日期:1992-09-01 00:00:00

  • Distal sensory nerve conduction of the superficial peroneal nerve: new method and its clinical application.

    abstract::The superficial peroneal nerve subserves sensation on the entire surface of the dorsum of the foot, except in small areas. All previously reported techniques for evaluating nerve conduction along this nerve tested a proximal portion of the nerve. We report a new method for evaluating sensory nerve conduction of the fo...

    journal_title:Muscle & nerve

    pub_type: 临床试验,杂志文章

    doi:10.1002/mus.1056

    authors: Oh SJ,Demirci M,Dajani B,Melo AC,Claussen GC

    更新日期:2001-05-01 00:00:00

  • Comparing the function of the corticospinal system in different species: organizational differences for motor specialization?

    abstract::An appreciation of the comparative functions of the corticospinal tract is of direct relevance to the understanding of how results from animal models can advance knowledge of the human motor system and its disorders. Two critical functions of the corticospinal tract are discussed: first, the role of descending project...

    journal_title:Muscle & nerve

    pub_type: 杂志文章,评审

    doi:10.1002/mus.20333

    authors: Lemon RN,Griffiths J

    更新日期:2005-09-01 00:00:00

  • Effect of gender and obesity on electrical current thresholds.

    abstract:INTRODUCTION:In this study we investigated the influence of gender and obesity on electrical current thresholds in an attempt to optimize the application of skeletal muscle electrical stimulation (ES) in clinical practice. METHODS:Thirty-two obese and 35 age-matched, non-obese men and women received graded ES to the q...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.22050

    authors: Maffiuletti NA,Morelli A,Martin A,Duclay J,Billot M,Jubeau M,Agosti F,Sartorio A

    更新日期:2011-08-01 00:00:00

  • Bcl-2 and bax immunohistochemistry in denervation-reinnervation and necrosis-regeneration of rat skeletal muscles.

    abstract::Bcl-2 and Bax immunohistochemistry was examined in the skeletal muscle of rats after cutting the sciatic nerve, as a model of denervation and reinnervation, and in the anterior tibialis muscle of rats after an intramuscular injection of metoclopramide, as a model of necrosis and regeneration of muscle fibers, to bette...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/1097-4598(200012)23:12<1862::aid-mus10>3.0

    authors: Olivé M,Ferrer I

    更新日期:2000-12-01 00:00:00

  • Temperature dependence of contraction characteristics in developing rat muscles.

    abstract::Contractions of rat extensor digitorum longus (EDL, a fast muscle) and soleus (SOL, a slow muscle) muscles of different ages (1-4 weeks) were recorded in vitro with direct stimulation and at different temperatures (range 35-10 degrees C). Twitch tension in 4-week-old EDL muscle increased in cooling from 35 to 20 degre...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.880100902

    authors: Wylie SR,Ranatunga KW

    更新日期:1987-11-01 00:00:00

  • Utility of whole exome sequencing in evaluation of juvenile motor neuron disease.

    abstract:INTRODUCTION:This case report focuses on identifying novel mutations in juvenile motor neuron disease and emphasizes the significance of whole exome sequencing (WES). METHODS:We report a 13-year-old Hispanic boy with rapidly progressive weakness, muscle atrophy, tremor, and tongue fasciculation, along with upper motor...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.25030

    authors: Agarwal S,Potocki L,Collier TR,Woodbury SL,Adesina AM,Jones J,Lotze TE

    更新日期:2016-04-01 00:00:00

  • Application of differentiated human tonsil-derived stem cells to trembler-J mice.

    abstract:INTRODUCTION:Mesenchymal stem cells (MSCs) can differentiate into various cell types. METHODS:In this study we investigated the potential of human tonsil-derived MSCs (T-MSCs) for neuromuscular regeneration in trembler-J (Tr-J) mice, a model for Charcot-Marie-Tooth disease type 1A (CMT1A). RESULTS:T-MSCs differentiat...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.25763

    authors: Park S,Choi Y,Kwak G,Hong YB,Jung N,Kim J,Choi BO,Jung SC

    更新日期:2018-03-01 00:00:00

  • Translation and validation of the arabic version of the revised 15-item myasthenia gravis quality-of-life questionnaire.

    abstract:INTRODUCTION:We sought to translate, culturally adapt, and assess the Arabic version of the 15-item myasthenia gravis quality-of-life revised scale (MGQOL15R). METHODS:We assessed reliability with Cronbach α; reproducibility with intraclass correlation coefficient (ICC); validity with Spearman correlations for myasthe...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.25948

    authors: Alanazy MH,Abuzinadah AR,Muayqil T

    更新日期:2018-04-01 00:00:00

  • Doxorubicin chemomyectomy as a treatment for cervical dystonia: histological assessment after direct injection into the sternocleidomastoid muscle.

    abstract::The sternocleidomastoid muscle (SCM) is one of the major muscles involved in producing abnormal head position in cervical dystonia patients. This study tested whether doxorubicin chemomyectomy, direct injection of doxorubicin into the SCM to permanently remove muscle fibers, has the potential to be a nonsurgical, perm...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/(sici)1097-4598(199811)21:11<1457::aid-mus

    authors: McLoon LK,Falkenberg JH,Dykstra D,Iaizzo PA

    更新日期:1998-11-01 00:00:00

  • A RYR1 mutation associated with recessive congenital myopathy and dominant malignant hyperthermia in Asian families.

    abstract::In this study we present 3 families with malignant hyperthermia (MH), all of Indian subcontinent descent. One individual from each of these families was fully sequenced for RYR1 and presented with the non-synonymous change c.11315G>A/p.R3772Q. When present in the homozygous state c.11315*A is associated with myopathic...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.21397

    authors: Carpenter D,Ismail A,Robinson RL,Ringrose C,Booms P,Iles DE,Halsall PJ,Steele D,Shaw MA,Hopkins PM

    更新日期:2009-10-01 00:00:00

  • Quantitative analysis of reflex inhibition in single motor units in human masseter muscle: effects of stimulus intensity.

    abstract::Inhibitory reflex responses to electrical stimulation of the mental nerve were studied in recordings from single motor units (SMU) in the human masseter muscle. A new analytical technique for spike train data was used. Electrical stimuli were delivered to the mental nerve when the SMU fired with two consecutive inter-...

    journal_title:Muscle & nerve

    pub_type: 临床试验,杂志文章

    doi:10.1002/(sici)1097-4598(200002)23:2<259::aid-mus18

    authors: Graven-Nielsen T,Svensson P,McMillan AS,Arendt-Nielsen L

    更新日期:2000-02-01 00:00:00

  • Yields of muscle from myogenic cells implanted into young and old mdx hosts.

    abstract::Implantation of normal muscle precursor cells (mpc) for treatment for inherited myopathies such as Duchenne muscular dystrophy is in clear need of improvement to become practicable, but few variables have been studied comparatively. Here, we report the first quantitative estimate of the effectiveness of implanting mpc...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/(SICI)1097-4598(199602)19:2<132::AID-MUS2>

    authors: Morgan JE,Fletcher RM,Partridge TA

    更新日期:1996-02-01 00:00:00

  • Hemolytic anemia associated with intravenous immunoglobulin.

    abstract::Intravenous immunoglobulin (IVIg) is a useful tool in the treatment of a variety of neuromuscular disorders. Though IVIg therapy is generally safe, hemolytic anemia is a potentially serious complication that is often overlooked, and is currently not listed in product inserts. We analyzed 45 patients who received IVIg ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/(sici)1097-4598(199709)20:9<1142::aid-mus8

    authors: Wilson JR,Bhoopalam H,Fisher M

    更新日期:1997-09-01 00:00:00

  • Early changes of muscle insulin-like growth factor-1 and myostatin gene expression in gastric cancer patients.

    abstract:INTRODUCTION:Cachexia increases morbidity and mortality of cancer patients. The progressive loss of muscle mass negatively affects physical function and quality of life. We previously showed reduced muscle insulin-like growth factor-1 (IGF-1) expression and enhanced myostatin signaling in tumor-bearing animals. This st...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.23798

    authors: Bonetto A,Penna F,Aversa Z,Mercantini P,Baccino FM,Costelli P,Ziparo V,Lucia S,Rossi Fanelli F,Muscaritoli M

    更新日期:2013-09-01 00:00:00

  • Ethical review of research involving human subjects: when and why is IRB review necessary?

    abstract::Requirements for ethical review of research involving human subjects are based on widely accepted international standards that are implemented by various national regulations and institutional policies. In the United States, most human research is reviewed by institutional review boards (IRBs) applying federal standar...

    journal_title:Muscle & nerve

    pub_type: 杂志文章,评审

    doi:10.1002/mus.10398

    authors: Wagner RM

    更新日期:2003-07-01 00:00:00

  • Adipose stem cells enhance myoblast proliferation via acetylcholine and extracellular signal-regulated kinase 1/2 signaling.

    abstract:INTRODUCTION:In this study we investigated the interaction between adipose tissue-derived stem cells (ASCs) and myoblasts in co-culture experiments. METHODS:Specific inductive media were used to differentiate ASCs in vitro into a Schwann cell-like phenotype (differentiated adipose tissue-derived stem cells, or dASCs) ...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.25741

    authors: El-Habta R,Kingham PJ,Backman LJ

    更新日期:2018-02-01 00:00:00

  • Early prednisone treatment in Duchenne muscular dystrophy.

    abstract::The purpose of this long-term, open parallel-group, double-consent study of alternate-day, low-dose prednisone in 2-4-year-old patients with Duchenne muscular dystrophy (DMD) was to determine whether prednisone produces a beneficial effect when given earlier than usual. Muscle function was evaluated by timed tests, an...

    journal_title:Muscle & nerve

    pub_type: 临床试验,杂志文章

    doi:10.1002/mus.10319

    authors: Merlini L,Cicognani A,Malaspina E,Gennari M,Gnudi S,Talim B,Franzoni E

    更新日期:2003-02-01 00:00:00

  • Altered MEF2 isoforms in myotonic dystrophy and other neuromuscular disorders.

    abstract::Because of their central role in muscle development and maintenance, MEF2 family members represent excellent candidate effectors of the muscle pathology in myotonic dystrophy (DM). We investigated the expression and alternative splicing of all four MEF2 genes in muscle from neuromuscular disorder (NMD) patients, inclu...

    journal_title:Muscle & nerve

    pub_type: 杂志文章

    doi:10.1002/mus.21789

    authors: Bachinski LL,Sirito M,Böhme M,Baggerly KA,Udd B,Krahe R

    更新日期:2010-12-01 00:00:00