Abstract:
:We wished to determine whether evoked force output from a human muscle could be inferred from the amplitude and the frequency of evoked muscular sounds. Sounds from adductor pollicis were recorded with a microphone and compared to evoked force changes produced by varying the intensity of nerve stimulation or of voluntary effort as well as by fatigue and twitch potentiation. In all instances, high correlations were obtained between evoked acoustic signals amplitude and evoked twitch force changes. Instantaneous time-frequency distributions of evoked acoustic signals also showed a high degree of cross correlation with evoked instantaneous twitch force, but no relationship was found for the group between the maximal frequency of sound and force changes. We conclude that evoked force changes from human muscles cannot be reliably inferred from frequency domain analysis of evoked sound signals and that, for this purpose, analysis of sound signals in time domain can be employed, an analysis potentially useful for muscles whose force output cannot be directly measured.
journal_name
Muscle Nervejournal_title
Muscle & nerveauthors
Chen D,Durand LG,Bellemare Fdoi
10.1002/(sici)1097-4598(199708)20:8<991::aid-mus9>subject
Has Abstractpub_date
1997-08-01 00:00:00pages
991-1001issue
8eissn
0148-639Xissn
1097-4598pii
10.1002/(SICI)1097-4598(199708)20:8<991::AID-MUS9>journal_volume
20pub_type
杂志文章相关文献
MUSCLE & NERVE文献大全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
更新日期:2011-06-01 00:00:00
abstract:INTRODUCTION:An enlarged tongue (macroglossia) has been reported in advanced-stage patients with amyotrophic lateral sclerosis (ALS). METHODS:In this study we examined the prevalence of macroglossia and analyzed clinical correlations in 65 ALS patients on tracheostomy-invasive ventilation (TIV). RESULTS:Macroglossia ...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.25058
更新日期:2016-09-01 00:00:00
abstract::We report electrophysiological findings of conduction along peripheral sensory fibers in 64 patients with amyotrophic lateral sclerosis. Distribution of the values of action potential amplitudes and conduction velocities of peripheral afferent fibers were significantly lower than in normal age-matched controls. Sensor...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880160208
更新日期:1993-02-01 00:00:00
abstract:INTRODUCTION:Herein we present an exploratory study of orofacial function in children with congenital myotonic dystrophy (CDM) vs. healthy controls. METHODS:We evaluated 41 children with CDM and 29 healthy controls for speech and swallow function and for lingual and labial strength. RESULTS:The Iowa Oral Performance ...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.26176
更新日期:2018-09-01 00:00:00
abstract::The acronym CANOMAD encompasses chronic ataxic neuropathy combined with ophthalmoplegia, M protein, cold agglutinins, and anti-disialosyl antibodies.Herein we describe 2 patients presenting with progressive ataxic neuropathy who only developed ophthalmoplegia after a significant delay post-presentation, which in 1 cas...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.22167
更新日期:2011-11-01 00:00:00
abstract::An electrophysiologic study of peripheral nerve excitability was performed in patients with hyperkalemic periodic paralysis (HPP) and in normal controls. It was found that a marked degree of neural hyperexcitability existed in all patients with HPP who showed cold sensitivity. The results suggest involvement of the ne...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880020402
更新日期:1979-07-01 00:00:00
abstract::The reliability of motor unit number estimation (MUNE) for assessment of the long-term course of ALS is dependent on the reproducibility of the technique. We report our results with the statistical method of MUNE on the ulnar nerve/hypothenar muscle in 16 ALS patients who were studied on 52 occasions. On each occasion...
journal_title:Muscle & nerve
pub_type: 临床试验,杂志文章
doi:10.1002/(sici)1097-4598(200002)23:2<193::aid-mus8>
更新日期:2000-02-01 00:00:00
abstract::The aim of this study was to investigate the fasciculation potentials (FPs) in the small-peripheral muscles of the foot and hand and the possible associated factors, in a healthy population. One hundred-twenty-two normal individuals (65 men and 57 women), aged 17-67 years (mean 39.96, SD=12.76) participated in the stu...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/(sici)1097-4598(199804)21:4<533::aid-mus14
更新日期:1998-04-01 00:00:00
abstract::We have examined the clinical features of patients with femoral neuropathy and the factors that influence the prognosis. Of 80 consecutive patients referred for neurophysiological evaluations of proximal lower limb weakness, 32 fulfilled strict inclusion criteria and had adequate information, including estimates of ax...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/(sici)1097-4598(199702)20:2<205::aid-mus11
更新日期:1997-02-01 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
pub_type: 杂志文章
doi:10.1002/mus.10384
更新日期:2003-06-01 00:00:00
abstract::We used peristimulus time histograms (PSTHs) to estimate characteristics of the composite excitatory postsynaptic potentials (EPSPs) generated at the anterior horn cell by a descending cortical volley induced by subthreshold transcranial magnetic stimuli in 11 normal subjects, 9 patients with DNA-confirmed Kennedy's d...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/(sici)1097-4598(199903)22:3<299::aid-mus2>
更新日期:1999-03-01 00:00:00
abstract::The clinical efficacy of functional electrical stimulation (FES) is limited by the rapid onset of fatigue. Functional electrical stimulation applications typically stimulate skeletal muscles with constant-frequency trains (CFTs). Our laboratory has identified trains that we call doublet-frequency trains (DFTs) and tha...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.20300
更新日期:2005-05-01 00:00:00
abstract::The aim of this study was to define normal ranges of histological features in pediatric muscle in comparison with muscle demonstrating inflammatory changes. Sixteen pediatric muscle biopsy samples, considered normal by standard histology, were analyzed for the presence of inflammatory cells, and the expression of neon...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.20898
更新日期:2008-02-01 00:00:00
abstract::To determine if short TI (time to inversion) recovery (STIR) magnetic resonance imaging (MRI) is useful in assessing lower extremity (LE) denervation in subacute lumbar radiculopathy (LR), 25 subjects underwent lumbar spine MRI, LE STIR MRI and needle electromyography (EMG). In 23 (92%) subjects there was a positive c...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/(sici)1097-4598(199709)20:9<1191::aid-mus1
更新日期:1997-09-01 00:00:00
abstract::Laser Doppler flowmetry (LDF) was conducted on familial amyloidotic polyneuropathy (FAP) patients and asymptomatic carriers of FAP. Vasoconstrictive responses in the 11 FAP patients tested, induced by deep inspiration, were markedly depressed compared with those of the healthy controls. The responses decreased with th...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880150416
更新日期:1992-04-01 00:00:00
abstract::Neurotrophic factors are growth factors or cytokines that are inducible polypeptides and permit intercellular communication. An explosion of information about neurotrophic factors is setting the stage for significant advances in neural disease therapy in the next century. The effects of these trophic factors are overl...
journal_title:Muscle & nerve
pub_type: 杂志文章,评审
doi:10.1002/(sici)1097-4598(199908)22:8<983::aid-mus1>
更新日期:1999-08-01 00:00:00
abstract::Using poststimulus time histograms, it has been reported that stimulation of the median nerve at the elbow produces a monosynaptic EPSP in voluntarily active single motoneurons of the human biceps brachii. The present study was undertaken to: (i) determine whether such stimulation could evoke a reproducible reflex res...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880180604
更新日期:1995-06-01 00:00:00
abstract::Myasthenia gravis (MG) and its animal model experimental autoimmune myasthenia gravis (EAMG) are caused by autoantibodies against nicotinic acetylcholine receptor (AChR) in skeletal muscle. The production of anti-AChR antibodies is mediated by cytokines produced by CD4+ and CD8+ T helper (Th) cells. Emerging investiga...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/(sici)1097-4598(199705)20:5<543::aid-mus2>
更新日期:1997-05-01 00:00:00
abstract::To enable the quantitative assessment of peripheral nerve structure and function, we determined the normal values for sural nerve hydration structure as measured by magnetic resonance proton imaging, and for neurological function with scores for neuropathic symptoms, signs, and nerve conduction properties. Normal huma...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880160311
更新日期:1993-03-01 00:00:00
abstract::Immunologic syndromes are associated with hepatitis B viral (HBV) infection. However, mononeuropathy multiplex (MM), a syndrome in which immune factors may play a role, is rare in acute HBV infection. Few cases of MM associated with HBV infection have been reported. We report a case of acute HBV infection in which MM ...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880130304
更新日期:1990-03-01 00:00:00
abstract::The nosologic distinction between paramyotonia congenita and hyperkalemic periodic paralysis is somewhat blurred. Muscle membrane inexcitability induced by cooling seems to be characteristic of paramyotonia congenita. The effect of cooling on the maximal compound muscle action potential (CMAP) in patients with paramyo...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880090804
更新日期:1986-10-01 00:00:00
abstract:INTRODUCTION:Duchenne muscular dystrophy (DMD) is a degenerative disease of skeletal, respiratory, and cardiac muscles caused by defects in the dystrophin gene. More recently, brain involvement has been verified. Mitochondrial dysfunction and oxidative stress may underlie the pathophysiology of DMD. In this study we ev...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.24704
更新日期:2016-01-01 00:00:00
abstract::Six members originating from two families with hereditary motor and sensory neuropathy (hypertrophic and neuronal types) were noted to have enlarged calf muscles. Muscle computed tomography revealed that muscle enlargement in the propositus of the family with the hypertrophic type of HMSN was due to an increase in mus...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880130109
更新日期:1990-01-01 00:00:00
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
更新日期:2010-05-01 00:00:00
abstract::The objectives of this study were 1) to determine the degree to which soleus motoneurons find their appropriate target following crush and transection injuries to the sciatic nerve, and 2) to determine whether repair of a transected nerve with a silicone tube leads to greater specificity of reinnervation and recovery ...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/(sici)1097-4598(199701)20:1<29::aid-mus4>3
更新日期:1997-01-01 00:00:00
abstract:INTRODUCTION:Tarsal tunnel syndrome (TTS) arises from tibial nerve damage under the flexor retinaculum of the fibro-osseus tunnel at the medial malleolus. It is notoriously difficult to diagnose, as many other foot pathologies result in a similar clinical picture. We examined the additional value of nerve ultrasound in...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.24963
更新日期:2016-06-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to determine factors affecting health-related quality of life (HRQOL) and to propose appropriate treatment targets for patients with myasthenia gravis (MG). METHODS:We evaluated 640 consecutive patients with MG seen at 11 neurological centers. Two-year follow-up data were obtaine...
journal_title:Muscle & nerve
pub_type: 杂志文章,多中心研究
doi:10.1002/mus.24213
更新日期:2014-10-01 00:00:00
abstract::Deletions of muscle mitochondrial DNA are known in mitochondrial myopathy patients who have chronic progressive external ophthalmoplegia (CPEO). A 41-year-old patient with no apparent family history of this condition suffers from hypertrophic cardiomyopathy, slight muscle atrophy, and weakness of the extremities, but ...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.880181115
更新日期:1995-11-01 00:00:00
abstract::This study compared the force output produced by variable frequency, short-duration trains (VFTs) of electrical pulses with the forces produced by constant frequency, short-duration trains (CFTs). Human quadriceps femoris muscle was stimulated with a 300-msec train of pulses once every second for 180 seconds. Each sub...
journal_title:Muscle & nerve
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/mus.880140909
更新日期:1991-09-01 00:00:00
abstract::Mutations of the valosin-containing protein gene (VCP) are responsible for autosomal-dominant hereditary inclusion-body myopathy associated with frontotemporal dementia and Paget's disease of bone. We identified the p.R155C missense mutation in the VCP gene segregating in an Italian family with three affected siblings...
journal_title:Muscle & nerve
pub_type: 杂志文章
doi:10.1002/mus.20890
更新日期:2008-01-01 00:00:00