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Neuromuscular stimulation

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https://www.readbyqxmd.com/read/28803817/6mwt-can-identify-type-3-sma-patients-with-neuromuscular-junction-dysfunction
#1
REVIEW
Maria Carmela Pera, Marco Luigetti, Marika Pane, Giorgia Coratti, Nicola Forcina, Lavinia Fanelli, Elena S Mazzone, Laura Antonaci, Leonardo Lapenta, Concetta Palermo, Domiziana Ranalli, Giuseppe Granata, Mauro Lomonaco, Serenella Servidei, Eugenio Mercuri
The aim of the study was to establish if the decrease in gait velocity on the 6 minute walk test relates to signs of neuromuscular junction dysfunction in spinal muscular atrophy type 3 patients. 6 minute walk test and low-rate repetitive nerve stimulation test were performed in fifteen ambulant patients with spinal muscular atrophy type 3 of age between 9 and 66 years. The 6 minute walk distance ranged between 66 and 575 m. The difference between the first and the 6th minute ranged between 0 and -69%. The low-rate repetitive nerve stimulation test measured in % of loss ranged between -31...
July 14, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28797897/ultrasonographic-quantification-of-architectural-response-in-tibialis-anterior-to-neuromuscular-electrical-stimulation
#2
Emilie Simoneau-Buessinger, Sébastien Leteneur, Alix Bisman, François Gabrielli, Jennifer Jakobi
While muscle contraction in voluntary efforts has been widely investigated, little is known about contraction during neuromuscular electrical stimulation (NMES). The aim of this study was to quantify in vivo muscle architecture of agonist and antagonist muscles at the ankle joint during NMES. Muscle fascicle lengths and pennation angles of the tibialis anterior (TA) and lateral gastrocnemius muscles were assessed via ultrasonography in 8 healthy young males. Measures were obtained during maximal NMES and torque-matched voluntary dorsiflexion contractions...
July 26, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28795964/neuromuscular-monitoring-in-the-perioperative-period
#3
Glenn S Murphy
Neuromuscular monitoring devices were introduced into clinical practice in the 1970s. Qualitative neuromuscular monitors, or peripheral nerve stimulators, provide an electrical stimulus to a motor nerve and the response of corresponding muscle subjectively evaluated. A standard peripheral nerve stimulator provides several patterns of nerve stimulation, including train-of-four (TOF), double-burst, tetanic, and post-tetanic count. Qualitative (and quantitative) monitors are needed to determine onset of neuromuscular blockade, maintain the required depth of muscle relaxation during the surgical procedure, and assess an appropriate dose of reversal agent...
August 8, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28792587/electromyographic-bridge-for-promoting-the-recovery-of-hand-movements-in-subacute-stroke-patients-a-randomized-controlled-trial
#4
Yu-Xuan Zhou, Yang Xia, Jia Huang, Hai-Peng Wang, Xue-Liang Bao, Zheng-Yang Bi, Xiao-Bing Chen, Yu-Jie Gao, Xiao-Ying Lü, Zhi-Gong Wang
OBJECTIVE: The electromyographic bridge (EMGB) detects surface electromyographic signals from a non-paretic limb. It then generates electric pulse trains according to the electromyographic time domain features, which can be used to stimulate a paralysed or paretic limb in real time. This strategy can be used for the contralateral control of neuromuscular electrical stimulation (NMES) to improve motor function after stroke. The aim of this study was to compare the treat-ment effects of EMGB vs cyclic NMES on wrist and finger impairments in subacute stroke patients...
August 9, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28780847/-characteristics-of-repetitive-nerve-stimulation-in-53-cases-of-amyotrophic-lateral-sclerosis
#5
W X Liu, Z H Chen, L Ling, Y T Ren, B Sun, F Yang, F Cui, X S Huang
Objective: To investigate the feature of repetitive nerve stimulation (RNS) in patients with amyotrophic lateral sclerosis (ALS) and correlation between RNS and clinical features and electromyography (EMG) findings of the corresponding muscle. Methods: Needle EMG and RNS were performed in 53 patients with ALS, who were recruited into Department of Neurology of Chinese PLA general hospital during April to December in 2016. Decrement of the compond muscle action potential (CMAP) in response to RNS of different nerves and stimulus frequencies was compared...
August 1, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28770093/the-clinical-practice-guideline-for-the-management-of-ards-in-japan
#6
Satoru Hashimoto, Masamitsu Sanui, Moritoki Egi, Shinichiro Ohshimo, Junji Shiotsuka, Ryutaro Seo, Ryoma Tanaka, Yu Tanaka, Yasuhiro Norisue, Yoshiro Hayashi, Eishu Nango
BACKGROUND: The Japanese Society of Respiratory Care Medicine and the Japanese Society of Intensive Care Medicine provide here a clinical practice guideline for the management of adult patients with ARDS in the ICU. METHOD: The guideline was developed applying the GRADE system for performing robust systematic reviews with plausible recommendations. The guideline consists of 13 clinical questions mainly regarding ventilator settings and drug therapies (the last question includes 11 medications that are not approved for clinical use in Japan)...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28765190/reversible-central-neural-hyperexcitability-an-electroencephalographic-clue-to-hypocalcaemia
#7
Bhagyadhan A Patel, Rahul T Chakor, Kaumil V Kothari, Swaleha Nadaf
A 23-year-old male patient presented with cognitive decline and seizures. Examination revealed Chvostek's and Trousseau's signs. Investigations revealed hypocalcaemia, hyperphosphatemia and normal intact parathyroid hormone levels. Imaging showed calcifications in bilateral basal ganglia, thalamus and dentate nuclei. Interictal electroencephalogram showed theta range slowing of background activity and bilateral temporo-occipital, irregular, sharp and slow wave discharges, which accentuated during hyperventilation, photic stimulation and eye closure...
August 1, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28758085/neuromuscular-electrical-stimulation-and-strength-recovery-of-postnatal-diastasis-recti-abdominis-muscles
#8
Dalia M Kamel, Amel M Yousif
OBJECTIVE: To assess the effect of neuromuscular electrical stimulation (NMES) on the recovery of abdominal muscle strength in postnatal women with diastasis of recti abdominis muscles (DRAM). METHODS: Sixty women, 2 months postnatal, participated in this study. They were divided randomly into two equal groups. Group A received NMES in addition to abdominal exercises; group B received only abdominal exercises. The intervention in both groups was for three times per week for 8 weeks...
June 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28736791/control-of-standing-balance-at-leaning-postures-with-functional-neuromuscular-stimulation-following-spinal-cord-injury
#9
Musa L Audu, Brooke M Odle, Ronald J Triolo
This study systematically explored the potential of applying feedback control of functional neuromuscular stimulation (FNS) for stabilizing various erect and leaning standing postures after spinal cord injury (SCI). Perturbations ranging from 2 to 6% body weight were applied to two subjects with motor complete thoracic level SCI who were proficient at standing with implanted multichannel neural stimulators to activate the ankle, knee, hip and trunk muscles. The subjects stood with four different postures: erect, forward, forward-right and forward-left...
July 24, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28732481/central-and-peripheral-fatigue-development-in-the-shoulder-muscle-with-obesity-during-an-isometric-endurance-task
#10
Mojdeh Pajoutan, Mahboobeh Ghesmaty Sangachin, Lora A Cavuoto
BACKGROUND: Fatigue increases the likelihood of developing work-related musculoskeletal disorders and injury. Due to the physiological and neuromuscular changes that accompany obesity, it may alter the fatigue development mechanism and exacerbate injury risk. The upper extremities have the highest incidence rates for work-related musculoskeletal disorders. Therefore, the goals of this study were to investigate the effect of obesity on central vs. peripheral fatigue as well as on the physical signs of fatigue on the middle deltoid muscle...
July 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28732069/saccharomyces-boulardii-cncm-i-745-supplementation-reduces-gastrointestinal-dysfunction-in-an-animal-model-of-ibs
#11
Paola Brun, Melania Scarpa, Chiara Marchiori, Gloria Sarasin, Valentina Caputi, Andrea Porzionato, Maria Cecilia Giron, Giorgio Palù, Ignazio Castagliuolo
BACKGROUND: We evaluated the effect of Saccharomyces boulardii CNCM I-745 on intestinal neuromuscular anomalies in an IBS-type mouse model of gastrointestinal motor dysfunctions elicited by Herpes Simplex Virus type 1 (HSV-1) exposure. METHODS: Mice were inoculated intranasally with HSV-1 (102 PFU) or vehicle at time 0 and 4 weeks later by the intragastric (IG) route (108 PFU). Six weeks after IG inoculum, mice were randomly allocated to receive oral gavage with either S...
2017: PloS One
https://www.readbyqxmd.com/read/28730908/electrical-stimulation-for-the-treatment-of-obstructive-sleep-apnoea-a-review-of-the-evidence
#12
Valeria Bisogni, Martino F Pengo, Andrea De Vito, Giuseppe Maiolino, Gian Paolo Rossi, John Moxham, Joerg Steier
Obstructive sleep apnoea is an increasingly prevalent clinical condition with significant impact on individuals and public health. Continuous positive airway pressure therapy is the standard treatment, but adherence is limited and alternative treatments are needed. In this context, non-invasive and invasive methods for the electrical stimulation of upper airway dilator muscles have been demonstrated to be effective in selected patients. Areas covered: This review will cover investigations on the clinical effects, safety, and tolerability of non-invasive and invasive electrical stimulation of the upper airway for the management of obstructive sleep apnoea...
July 27, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28729118/hbk-14-and-hbk-15-triple-5-ht1a-5-ht7-and-5-ht3-antagonists-with-potent-antidepressant-and-anxiolytic-like-properties-increase-seizure-threshold-in-various-seizure-tests-in-mice
#13
Karolina Pytka, Katarzyna Socała, Anna Rapacz, Dorota Nieoczym, Mateusz Pieróg, Anna Gryboś, Agata Siwek, Anna Waszkielewicz, Piotr Wlaź
Most antidepressants lower seizure threshold, which might be due to the modulation of serotonergic neurotransmission. Here, we investigated the effects of two 5-HT1A, 5-HT7 and 5-HT3 antagonists, i.e., 1-(2-(2-(2,6-dimethylphenoxy)ethoxy)ethyl)-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-14) and 1-{2-[2-(2-chloro-6-methylphenoxy)ethoxy]ethyl}-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-15), with antidepressant- and anxiolytic-like properties, on seizure thresholds in three acute seizure tests, i.e...
July 17, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28728611/effect-of-electrode-position-of-low-intensity-neuromuscular-electrical-stimulation-on-the-evoked-force-in-the-quadriceps-femoris-muscle
#14
Kohei Watanabe, Shuhei Kawade, Toshio Moritani
OBJECTIVE: The present study aimed to test the effect of the electrode position and inter-electrode distance on the evoked force by neuromuscular electrical stimulation (NMES) with a low current intensity and a single pair of electrodes. Knee extensor forces during NMES to quadriceps femoris muscles were compared among four different electrode configurations in seven healthy men. Electrodes were located at 10 cm proximal and 15 cm distal (P10-D15), 10 cm proximal and 10 cm distal (P10-D10), 5 cm proximal and 15 cm distal, and 5 cm proximal and 10 cm distal (P5-D10) to the center of the longitudinal axis of the quadriceps femoris muscles...
July 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28724748/depressed-synaptic-transmission-and-reduced-vesicle-release-sites-in-huntington-s-disease-neuromuscular-junctions
#15
Ahmad Khedraki, Eric J Reed, Shannon H Romer, Qingbo Wang, William Romine, Mark M Rich, Robert J Talmadge, Andrew A Voss
Huntington's disease (HD) is a progressive and fatal degenerative disorder that results in debilitating cognitive and motor dysfunction. Most HD studies have focused on degeneration of the central nervous system. We previously discovered that skeletal muscle from transgenic R6/2 HD mice is hyperexcitable due to decreased chloride and potassium conductances. The progressive and early onset of these defects suggest a primary myopathy in HD. In this study, we examined the relationship between neuromuscular transmission and skeletal muscle hyperexcitability...
July 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28723717/localized-muscle-vibration-reverses-quadriceps-muscle-hypotrophy-and-improves-physical-function-a-clinical-and-electrophysiological-study
#16
Maria Grazia Benedetti, Gennaro Boccia, Lorenzo Cavazzuti, Elena Magnani, Elisabetta Mariani, Alberto Rainoldi, Roberto Casale
Quadriceps weakness has been associated with knee osteoarthritis (OA). High-frequency localized muscle vibration (LMV) has been proposed recently for quadriceps strengthening in patients with knee OA. The purpose of this study was (a) to investigate the clinical effectiveness of high-frequency LMV on quadriceps muscle in patients with knee OA and (b) to disentangle, by means of surface electromyography (sEMG), the underlying mechanism. Thirty patients, aged between 40 and 65 years, and clinically diagnosed with knee OA were included in this randomized, controlled, single-blinded pilot study...
July 18, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28722822/-test-retest-reliability-of-wide-pulse-high-frequency-nmes-evoked-force
#17
Daria Neyroud, Sidney Grosprêtre, Julien Gondin, Bengt Kayser, Nicolas Place
INTRODUCTION: We aimed to compare forces evoked by wide-pulse high-frequency (WPHF) neuromuscular electrical stimulation (NMES) delivered to a nerve trunk vs. muscle belly and to assess their test-retest intra- and inter-individual reliability. METHODS: Forces evoked during two sessions with WPHF NMES delivered over the tibial nerve trunk and two over the triceps surae muscle belly were compared. Ten individuals participated in four sessions involving ten 20-s WPHF NMES contractions interspaced by 40 s recovery...
July 19, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28721012/comparison-of-neurotoxic-potency-between-a-novel-chinbotulinumtoxina-with-onabotulinumtoxina-incobotulinumtoxina-and-lanbotulinumtoxina-in-rats
#18
Ya Feng, Wuchao Liu, Lizhen Pan, Cong Jiang, Chengxi Zhang, Yuxuan Lu, Zhiyu Nie, Lingjing Jin
Four botulinumtoxin type A (BoNT/A) products, onabotulinumtoxinA (A/Ona), incobotulinumtoxinA (A/Inco), lanbotulinumtoxinA (A/Lan) and chinbotulinumtoxinA (A/Chin), are applied in the present study, among which A/Chin is newly produced. We aimed to compare the neurotoxic potency of these toxins by the gauge of muscle strength reduction. Furthermore, potential molecular and cellular mechanisms were also explored. According to our data, muscle strengths in the four toxin groups were all significantly decreased after injection for 1 week...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28718435/agrin-to-yap-in-cancer-and-neuromuscular-junctions
#19
Wen-Cheng Xiong, Lin Mei
Agrin is utilized by motor neurons to stimulate the LRP4-MuSK receptor in muscles for neuromuscular junction (NMJ) formation. Recent studies of cancer have identified novel functions of the low-density lipoprotein receptor-related protein 4-muscle-specific kinase (LRP4-MuSK) pathway. Agrin may act as a mechanotransduction signal in the extracellular matrix (ECM) to coordinate the cross-talk between the LRP4-MuSK pathway and integrin-focal adhesion pathway. Ensuing Yes-associated protein (YAP) activation promotes hepatocellular carcinoma (HCC)...
April 2017: Trends in Cancer
https://www.readbyqxmd.com/read/28710284/the-neuronal-protein-neurexin-directly-interacts-with-the-scribble-pix-complex-to-stimulate-f-actin-assembly-for-synaptic-vesicle-clustering
#20
Menglong Rui, Jinjun Qian, Lijuan Liu, Yihan Cai, Huihui Lv, Junhai Han, Zhengping Jia, Wei Xie
Synaptic vesicles (SVs) form distinct pools at synaptic terminals, and this well-regulated separation is necessary for normal neuro-transmission. However, how SV cluster in particular synaptic compartments to maintain normal neurotransmitter release remains a mystery. The presynaptic protein Neurexin (NRX) plays a significant role in synaptic architecture and function, and some evidences suggest that NRX is associated with neurological disorders, including autism spectrum disorders. However, the role of NRX in SV clustering is unclear...
July 14, 2017: Journal of Biological Chemistry
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