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Neuromuscular stimulation

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https://www.readbyqxmd.com/read/29777714/efficiency-of-neuromuscular-electrical-stimulation-and-transcutaneous-nerve-stimulation-on-hemiplegic-shoulder-pain-a-prospective-randomized-controlled-trial
#1
Meimei Zhou, Fang Li, Weibo Lu, Junfa Wu, Song Pei
OBJECTIVE: To compare the efficacy of neuromuscular electrical stimulation (NMES) and transcutaneous nerve stimulation (TENS) on hemiplegic shoulder pain (HSP). DESIGN: This is a prospective randomized controlled trial (RCT). SETTING: A total of 184 HSP patients, aged 18-80 years, were recruited in the Rehabilitation Hospital from February 2014 to July 2016. The Ethics approval was obtained from the Institutional Review Board of the Hospital...
May 16, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29777332/influence-of-tetanic-stimulation-on-the-staircase-phenomenon-and-the-acceleromyographic-time-course-of-neuromuscular-block-a-randomized-controlled-trial
#2
Guido Mazzinari, Carlos L Errando, Oscar Díaz-Cambronero, Manuel Martin-Flores
During neuromuscular monitoring, repeated electrical stimulation evokes muscle responses of increasing magnitude ('staircase phenomenon', SP). We aimed to evaluate whether SP affects time course and twitches' values of an acceleromyographic assessed neuromuscular block with or without previous tetanic stimulation. Fifty adult patients were randomized to receive a 50 Hz tetanic stimulus (S group) or not (C group) before monitor calibration. After 20 min of TOF ratio (TOFr) stimulation rocuronium was administered...
May 18, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29766505/esophageal-multimodal-stimulation-and-sensation
#3
REVIEW
Dag Arne Lihaug Hoff, Barry McMahon, Hans Gregersen
Esophageal mechanosensation describes the relationship between a mechanical stimulation of the esophageal wall, such as bag distension, and the reaction to the stimulation perceived or unperceived. When studying mechanosensation in esophageal disease, it is important to recognize that symptoms might be due to alterations at different levels of the neuromuscular system, such as alterations at the mechanoreceptor level or in the afferent mechanosensory pathways, or irregularities in the homeostatic state. One might ask if it is possible to provoke, record, and describe the multidimensional responses behind a mechanosensory experience? It is a complex system and, at a minimum, a multidisciplinary approach is needed to avoid erroneous conclusions...
May 16, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29760645/systems-analysis-of-human-visuo-myoelectric-control-facilitated-by-anodal-transcranial-direct-current-stimulation-in-healthy-humans
#4
Vinh Kha, Aguida S Foerster, Susan Bennett, Michael A Nitsche, Filip Stefanovic, Anirban Dutta
Induction of neuroplasticity by transcranial direct current stimulation (tDCS) applied to the primary motor cortex facilitates motor learning of the upper extremities in healthy humans. The impact of tDCS on lower limb functions has not been studied extensively so far. In this study, we applied a system identification approach to investigate the impact of anodal transcranial direct current stimulation of the leg area of the motor cortex via the human visuo-myoelectric controller. The visuo-myoelectric reaching task (VMT) involves ballistic muscle contraction after a visual cue...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760579/the-effect-of-transcutaneous-neuromuscular-electrical-stimulation-on-laryngeal-vestibule-closure-timing-in-swallowing
#5
Christopher R Watts, Matthew J Dumican
Background: The purpose of this study was to investigate the effect of transcutaneous neuromuscular electrical stimulation (NMES) on the timing of laryngeal vestibule closure during the pharyngeal stage of swallowing in healthy adults. The theoretical framework proposed that NMES applied to these muscles would present a perturbation to laryngeal vestibular closure reaction time (the amount of time for the laryngeal vestibule to close once the swallowing reflex has been triggered) by providing an antagonistic force to the direction of vestibule closure...
2018: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/29755590/wide-pulse-high-frequency-low-intensity-neuromuscular-electrical-stimulation-has-potential-for-targeted-strengthening-of-an-intrinsic-foot-muscle-a-feasibility-study
#6
Darren C James, Matthew C Solan, Katya N Mileva
Background: Strengthening the intrinsic foot muscles is a poorly understood and largely overlooked area. In this study, we explore the feasibility of strengthening m . abductor hallucis (AH) with a specific paradigm of neuromuscular electrical stimulation; one which is low-intensity in nature and designed to interleave physiologically-relevant low frequency stimulation with high-frequencies to enhance effective current delivery to spinal motoneurones, and enable a proportion of force produced by the target muscle to be generated from a central origin...
2018: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29746792/the-modulation-of-corticospinal-excitability-and-inhibition-following-acute-resistance-exercise-in-males-and-females
#7
Christopher Latella, Ashlee Hendy, Dan Vanderwesthuizen, Wei-Peng Teo
OBJECTIVE: The acute responses to resistance training (RT) between males and females are poorly understood, especially from a neural perspective. Therefore, we aimed to compare the corticospinal and intracortical responses during fatigue and recovery following RT. METHODS: Twenty-two participants (12M, 10F) completed one-session of RT (3 × 12 repetition maximum) unilateral leg extensions with 60 s recovery. Single- and paired-pulse transcranial magnetic stimulation measured changes in the motor-evoked potential (MEP), corticospinal silent period (CSP), CSP/MEP ratio, and intracortical facilitation/inhibition (ICF, SICI)...
May 10, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29742451/muscle-plasticity-of-aged-subjects-in-response-to-electrical-stimulation-training-and-inversion-and-or-limitation-of-the-sarcopenic-process
#8
REVIEW
Thierry Paillard
This review addresses the possible structural and functional adaptations of the muscle function to neuromuscular electrical stimulation (NMES) training in frail and/or aged (without advanced chronic disease) subjects. Evidence suggests that the sarcopenic process and its structural and functional effects would be limited and/or reversed through NMES training using excito-motor currents (or direct currents). From a structural viewpoint, NMES helps reduce muscle atrophy. From a functional viewpoint, NMES enables the improvement of motor output (i...
May 6, 2018: Ageing Research Reviews
https://www.readbyqxmd.com/read/29739451/reflex-erection-in-the-rat-reciprocal-interplay-between-hemodynamic-and-somatic-events
#9
Alexander Andreev-Andrievskiy, Evgeniia Lagereva, Anfisa Popova
BACKGROUND: Penile erection is a complex reflex under spinal control and modulated by the brain. The hemodynamic events under autonomic control and the perineal muscles somatic activity are interconnected during the reflex erection at the spinal level, however if the afferent feedback on the corpus cavernosum pressure during an erection affects the somatic activity (perineal muscles contractions) and vice versa is not known. This study was aimed to test this hypothesis using a rat model...
May 8, 2018: BMC Urology
https://www.readbyqxmd.com/read/29739270/bioinspired-3d-human-neuromuscular-junction-development-in-suspended-hydrogel-arrays
#10
Thomas Dixon, Eliad Cohen, Dana Meredith Cairns, Maria Rodriguez, Juanita Mathews, Rod Jose, David L Kaplan
The physical connection between motoneurons and skeletal muscle targets is responsible for the creation of neuromuscular junctions (NMJs), which allow electrical signals to be translated to mechanical work. NMJ pathology contributes to the spectrum of neuromuscular, motoneuron, and dystrophic disease. Improving in vitro tools that allow for recapitulation of the physiology of the neuromuscular connection will enable researchers to better understand the development and maturation of NMJs, and will help to decipher mechanisms leading to NMJ degeneration...
May 9, 2018: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29738790/neuromuscular-electrical-stimulation-can-improve-mobility-in-older-adults-but-the-time-course-varies-across-tasks-double-blind-randomized-trial
#11
Diba Mani, Awad M Almuklass, Ioannis G Amiridis, Roger M Enoka
Declines in mobility with advancing age are often associated with a reduction in the use of lower leg muscles. We examined the influence of two interventions that involved neuromuscular electrical stimulation (NMES) applied to the triceps surae muscles on the mobility and muscle function of older adults. Thirty healthy older adults (73.5 ± 4.8 yrs) participated in a 6-week intervention comprising 3 weekly sessions of either narrow- or wide-pulse NMES. Motor function was assessed at Weeks 0, 4, 7, and 10...
May 5, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29731661/electrophysiologic-alterations-in-the-excitability-of-the-sciatic-and-vagus-nerves-during-early-stages-of-sepsis
#12
Lúcio Ricardo Leite Diniz, Viviane Gomes Portella, Kerly Shamira da Silva Alves, Pâmella Cristina da Costa Araújo, Ricardo Luiz Cavalcanti de Albuquerque Júnior, Aline Alice Cavalcante de Albuquerque, Andrelina Noronha Coelho-de-Souza, José Henrique Leal-Cardoso
Background: Nonspecific and delayed diagnosis of neurologic damage contributes to the development of neuropathies in patients with severe sepsis. The present study assessed the electrophysiologic parameters related to the excitability and conductibility of sciatic and vagus nerves during early stages of sepsis. Materials and methods: Twenty-four hours after sepsis induced by cecal ligation and puncture (CLP) model, sciatic and vagus nerves of septic (CLP group) and control (sham group) rats were removed, and selected electric stimulations were applied to measure the parameters of the first and second components of the compound action potential...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29726748/efficacy-of-neuromuscular-electrical-stimulation-in-improving-the-negative-psychological-state-in-patients-with-cerebral-infarction-and-dysphagia
#13
Yanfang Zeng, James Yip, Hongli Cui, Longfei Guan, Haomeng Zhu, Weidong Zhang, Huishan Du, Xiaokun Geng
Objective To observe the improvement of negative affect disorders in patients with cerebral infarction and dysphagia by neuromuscular electrical stimulation. Methods One hundred and twelve patients with cerebral infarction and dysphagia were selected and randomized into treatment (n = 59) and control (n = 53) groups. Similar swallowing function was found in both groups before treatment: (1) Water-drinking test in the treatment group proved swallowing function Level III in 24 cases, Level IV in 22 cases and Level V in 13 cases; (2) in the control group, swallowing function was Level III in 21 cases, Level IV in 20 cases and Level V in 12 cases...
May 4, 2018: Neurological Research
https://www.readbyqxmd.com/read/29726694/the-role-of-the-nervous-system-in-neuromuscular-fatigue-induced-by-ultra-endurance-exercise
#14
Guillaume Y Millet, Vincent Martin, John Temesi
Ultra-endurance events are not a recent development but they have only become very popular in the last two decades, particularly ultra-marathons run on trails. The present paper reviews the role of the central nervous system (CNS) in neuromuscular fatigue induced by ultra-endurance exercise. Large decreases in voluntary activation are systematically found in ultra-endurance running but are attenuated in ultra-endurance cycling for comparable intensity and duration. This indirectly suggests that afferent feedback, rather than neurobiological changes within the CNS, is determinant in the amount of central fatigue produced...
May 4, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29721605/estimation-of-critical-end-test-torque-using-neuromuscular-electrical-stimulation-of-the-quadriceps-in-humans
#15
Natalie R Janzen, Robert E Hight, Darshit S Patel, Jason A Campbell, Rebecca D Larson, Christopher D Black
Characterization of critical power/torque (CP/CT) during voluntary exercise requires maximal effort, making difficult for those with neuromuscular impairments. To address this issue we sought to determine if electrically stimulated intermittent isometric exercise resulted in a critical end-test torque (ETT) that behaved similar to voluntary CT. In the first experiment participants (n = 9) completed four bouts of stimulated exercise at a 3:2 duty cycle, at frequencies of 100, 50, 25 Hz, and a low frequency below ETT (Sub-ETT; ≤ 15 Hz)...
May 2, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29719079/effects-of-ipsilateral-and-contralateral-fatigue-and-muscle-blood-flow-occlusion-on-the-complexity-of-knee-extensor-torque-output-in-humans
#16
Jamie Pethick, Samantha L Winter, Mark Burnley
NEW FINDINGS: In this study we show that the fatigue-induced loss of isometric torque complexity does not recover if the fatigued muscle's blood flow is occluded during recovery, suggesting a pivotal role for peripheral mechanisms in this effect. When the contralateral limb is fatigued, the complexity of isometric torque output is unaffected even if the contralateral limb's blood flow is occluded, which suggests neither central fatigue nor afferent feedback from ischaemic muscle influence the complexity of torque output in an otherwise fresh muscle...
May 2, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29719042/early-endplate-remodeling-and-skeletal-muscle-signaling-events-following-rat-hindlimb-suspension
#17
Alexander V Chibalin, Boubacar Benziane, Guzalija F Zakyrjanova, Violetta V Kravtsova, Igor I Krivoi
Motor endplates naturally undergo continual morphological changes that are altered in response to changes in neuromuscular activity. This study examines the consequences of acute (6-12 hr) disuse following hindlimb suspension on rat soleus muscle endplate structural stability. We identify early changes in several key signaling events including markers of protein kinase activation, AMPK phosphorylation and autophagy markers which may play a role in endplate remodeling. Acute disuse does not change endplate fragmentation, however, it decreases both the individual fragments and the total endplate area...
May 2, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29718968/acute-attenuation-of-fatigue-after-sodium-bicarbonate-supplementation-does-not-manifest-into-greater-training-adaptations-after-10-weeks-of-resistance-training-exercise
#18
Jason C Siegler, Paul W M Marshall, Harrison Finn, Rebecca Cross, Kurt Mudie
PURPOSE: In two concurrent studies, we aimed to a) confirm the acute effect of 0.3 g·kg-1 body weight (BW) sodium bicarbonate (NaHCO3) supplementation on central and peripheral mechanisms associated with explosive power (Study 1) and b) determine whether chronic NaHCO3 supplementation would improve the adaptive response of the neuromuscular system during a 10-week resistance training program (Study 2). METHODS: Eight resistance trained participants volunteered after providing written consent...
2018: PloS One
https://www.readbyqxmd.com/read/29705497/presynaptic-inhibition-mechanisms-may-subserve-the-spinal-excitability-modulation-induced-by-neuromuscular-electrical-stimulation
#19
Sidney Grosprêtre, Nicolas Gueugneau, Alain Martin, Romuald Lepers
This study aimed at deciphering the origins of spinal excitability modulation that follows neuromuscular electrical stimulation (NMES). Ten participants (age: 24.6 ± 4.2 years) performed 2 randomized NMES sessions on plantar flexors with frequencies of stimulations of 20 or 100 Hz (pulse width: 1 ms) at 20% of maximal voluntary contraction (MVC). Before and after each session, the posterior tibial nerve was stimulated to record H-reflex of soleus (SOL), gastrocnemius medialis (GM) and gastrocnemius lateralis (GL)...
April 24, 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29704921/assistive-technologies-to-overcome-sarcopenia-in-ageing
#20
REVIEW
Rachel A Scott, Michele L Callisaya, Gustavo Duque, Peter R Ebeling, David Scott
Sarcopenia is an age-related decline in skeletal muscle mass and function that results in disability and loss of independence. It affects up to 30% of older adults. Exercise (particularly progressive resistance training) and nutrition are key strategies in preventing and reversing declines in muscle mass, strength and power during ageing, but many sarcopenic older adults fail to meet recommended levels of both physical activity and dietary nutrient intake. Assistive technology (AT) describes devices or systems used to maintain or improve physical functioning...
June 2018: Maturitas
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