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Neuromuscular electrical stimulation

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https://www.readbyqxmd.com/read/28436401/effects-of-amplitude-and-phase-duration-modification-on-electrically-induced-contraction-force-and-discomfort
#1
Shmuel Springer, Maxim Shapiro
BACKGROUND: Neuromuscular electrical stimulation (NMES) is commonly used in rehabilitation. However, the optimal combination of phase-duration and amplitude for enhancing motor output is not yet resolved. OBJECTIVE: To test the effects of increasing phase-duration and amplitude on isometric knee extension force and discomfort, while controlling the effects of electrode-skin resistance and body mass index (BMI). METHODS: Twenty-one healthy volunteers participated in the study...
April 14, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28435743/effects-of-overground-locomotor-training-on-the-ventilatory-response-to-volitional-treadmill-walking-in-individuals-with-incomplete-spinal-cord-injury-a-pilot-study
#2
Gino S Panza, Andrew A Guccione, Lisa M Chin, Jared M Gollie, Jeffery E Herrick, John P Collins
INTRODUCTION: Although there has been substantial emphasis on the neuromuscular and cardiovascular adaptations following rehabilitation, pulmonary adaptations in individuals with incomplete SCI (iSCI) in response to locomotor training have been less frequently studied. In healthy individuals, effective transition from rest to work is accomplished by a hyperpneic response, which exhibits an exponential curve with three phases. However, the degree to which our current understanding of exercise hyperpnea can be applied to individuals with iSCI is unknown...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28432420/sex-differences-in-neuromuscular-function-after-repeated-eccentric-contractions-of-the-knee-extensor-muscles
#3
Andrea Lee, Jake Baxter, Claire Eischer, Matt Gage, Sandra Hunter, Tejin Yoon
PURPOSE: This study examined the mechanisms for force and power reduction during and up to 48 h after maximal eccentric contractions of the knee extensor muscles in young men and women. METHODS: 13 men (22.8 ± 2.6 years) and 13 women (21.6 ± 2.2 years) performed 150 maximal effort eccentric contractions (5 sets of 30) with the knee extensor muscles at 60° s(-1). Maximal voluntary isometric contractions (MVIC) and maximal voluntary concentric contractions (MVCC) were performed before and after the 150 eccentric contractions...
April 21, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28424583/a-rodent-model-of-dynamic-facial-reanimation-using-functional-electrical-stimulation
#4
Mark A Attiah, Julius de Vries, Andrew G Richardson, Timothy H Lucas
Facial paralysis can be a devastating condition, causing disfiguring facial droop, slurred speech, eye dryness, scarring and blindness. This study investigated the utility of closed-loop functional electric stimulation (FES) for reanimating paralyzed facial muscles in a quantitative rodent model. The right buccal and marginal mandibular branches of the rat facial nerve were transected for selective, unilateral paralysis of whisker muscles. Microwire electrodes were implanted bilaterally into the facial musculature for FES and electromyographic (EMG) recording...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28420958/electrical-stimulation-of-afferent-pathways-for-the-suppression-of-pathological-tremor
#5
Jakob L Dideriksen, Christopher M Laine, Strahinja Dosen, Silvia Muceli, Eduardo Rocon, José L Pons, Julian Benito-Leon, Dario Farina
Pathological tremors are involuntary oscillatory movements which cannot be fully attenuated using conventional treatments. For this reason, several studies have investigated the use of neuromuscular electrical stimulation for tremor suppression. In a recent study, however, we found that electrical stimulation below the motor threshold also suppressed tremor, indicating involvement of afferent pathways. In this study, we further explored this possibility by systematically investigating how tremor suppression by afferent stimulation depends on the stimulation settings...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28394724/a-multimodal-nonpharmacologic-intervention-improves-mood-and-cognitive-function-in-people-with-multiple-sclerosis
#6
Jennifer E Lee, Babita Bisht, Michael J Hall, Linda M Rubenstein, Rebecca Louison, Danielle T Klein, Terry L Wahls
OBJECTIVE: The objective of this study was to examine whether participation in a 12-month multimodal intervention would improve mood and cognitive function in adults with progressive multiple sclerosis (MS). METHODS: In this one-arm, open-label feasibility trial, participants were prescribed a home-based multimodal intervention, including (1) a modified Paleolithic diet; (2) an exercise program (stretching and strengthening of the trunk and lower limb muscles); (3) neuromuscular electrical stimulation (EStim) of trunk and lower limb muscles; and (4) stress management (meditation and self-massage)...
March 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28392766/presence-and-absence-of-muscle-contraction-elicited-by-peripheral-nerve-electrical-stimulation-differentially-modulate-primary-motor-cortex-excitability
#7
Ryoki Sasaki, Shinichi Kotan, Masaki Nakagawa, Shota Miyaguchi, Sho Kojima, Kei Saito, Yasuto Inukai, Hideaki Onishi
Modulation of cortical excitability by sensory inputs is a critical component of sensorimotor integration. Sensory afferents, including muscle and joint afferents, to somatosensory cortex (S1) modulate primary motor cortex (M1) excitability, but the effects of muscle and joint afferents specifically activated by muscle contraction are unknown. We compared motor evoked potentials (MEPs) following median nerve stimulation (MNS) above and below the contraction threshold based on the persistence of M-waves. Peripheral nerve electrical stimulation (PES) conditions, including right MNS at the wrist at 110% motor threshold (MT; 110% MNS condition), right MNS at the index finger (sensory digit nerve stimulation [DNS]) with stimulus intensity approximately 110% MNS (DNS condition), and right MNS at the wrist at 90% MT (90% MNS condition) were applied...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28388333/blunted-myoglobin-and-quadriceps-soreness-after-electrical-stimulation-during-the-luteal-phase-or-oral-contraception
#8
Lindsey J Anderson, Lucinda L Baker, E Todd Schroeder
PURPOSE: Acute muscle damage after exercise triggers subsequent regeneration, leading to hypertrophy and increased strength after repeated exercise. It has been debated whether acute exercise-induced muscle damage is altered under various premenopausal estrogen conditions. Acute contraction-induced muscle damage was compared during exogenous (oral contraceptive, OC), endogenous (luteal phase, HI), or low (menses, LO) estrogen in healthy young women aged 21 to 30 years old. METHODS: Women (OC, n = 9; HI, n = 9; LO, n = 8; total N = 26) performed 1 neuromuscular electrical stimulation (NMES) bout...
April 7, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/28377392/effects-of-testosterone-and-evoked-resistance-exercise-after-spinal-cord-injury-terex-sci-study-protocol-for-a-randomised-controlled-trial
#9
Ashraf S Gorgey, Refka E Khalil, Ranjodh Gill, Laura C O'Brien, Timothy Lavis, Teodoro Castillo, David X Cifu, Jeannie Savas, Rehan Khan, Christopher Cardozo, Edward J Lesnefsky, David R Gater, Robert A Adler
INTRODUCTION: Individuals with spinal cord injury (SCI) are at a lifelong risk of obesity and chronic metabolic disorders including insulin resistance and dyslipidemia. Within a few weeks of injury, there is a significant decline in whole body fat-free mass, particularly lower extremity skeletal muscle mass, and subsequent increase in fat mass (FM). This is accompanied by a decrease in anabolic hormones including testosterone. Testosterone replacement therapy (TRT) has been shown to increase skeletal muscle mass and improve metabolic profile...
April 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/28374487/gastric-neuromuscular-histology-in-patients-with-refractory-gastroparesis-relationships-to-etiology-gastric-emptying-and-response-to-gastric-electric-stimulation
#10
J Heckert, R M Thomas, H P Parkman
BACKGROUND: The aims of this study were to describe the histology in gastroparesis, specifically to relate histopathology to etiology of gastroparesis (idiopathic and diabetic gastroparesis), gastric emptying, and clinical response to gastric electric stimulation. METHODS: Full thickness gastric body sections obtained during insertion of gastric stimulator in gastroparetics were stained with Hematoxylin & Eosin, Masson Trichrome and immunohistochemical stains for Neuron-Specific Enolase and c-Kit...
April 4, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28364678/effect-of-neuromuscular-stimulation-and-individualized-rehabilitation-on-muscle-strength-in-intensive-care-unit-survivors-a-randomized-trial
#11
Irini Patsaki, Vasiliki Gerovasili, Georgios Sidiras, Eleftherios Karatzanos, Georgios Mitsiou, Emmanuel Papadopoulos, Anna Christakou, Christina Routsi, Anastasia Kotanidou, Serafim Nanas
PURPOSE: Intensive Care Unit (ICU) survivors experience muscle weakness leading to restrictions in functional ability. Neuromuscular electrical stimulation (NMES) has been an alternative to exercise in critically ill patients. The aim of our study was to investigate its effects along with individualized rehabilitation on muscle strength of ICU survivors. MATERIAL AND METHODS: Following ICU discharge, 128 patients (age: 53±16years) were randomly assigned to daily NMES sessions and individualized rehabilitation (NMES group) or to control group...
March 22, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28363767/time-scaling-based-sliding-mode-control-for-neuromuscular-electrical-stimulation-under-uncertain-relative-degrees
#12
Tiago Roux Oliveira, Luiz Rennó Costa, João Marcos Yamasaki Catunda, Alexandre Visintainer Pino, William Barbosa, Márcio Nogueira de Souza
This paper addresses the application of the sliding mode approach to control the arm movements by artificial recruitment of muscles using Neuromuscular Electrical Stimulation (NMES). Such a technique allows the activation of motor nerves using surface electrodes. The goal of the proposed control system is to move the upper limbs of subjects through electrical stimulation to achieve a desired elbow angular displacement. Since the human neuro-motor system has individual characteristics, being time-varying, nonlinear and subject to uncertainties, the use of advanced robust control schemes may represent a better solution than classical Proportional-Integral (PI) controllers and model-based approaches, being simpler than more sophisticated strategies using fuzzy logic or neural networks usually applied in this control problem...
March 28, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28361201/swallowing-function-after-continuous-neuromuscular-electrical-stimulation-of-the-submandibular-region-evaluated-by-high-resolution-manometry
#13
Michael Jungheim, Christoph Schubert, Simone Miller, Martin Ptok
Although neuromuscular electrical stimulation (NMES) is increasingly used in dysphagia therapy, patient responses to NMES are inconsistent and conflicting results have been reported. This, together with a lack of information about the effects of NEMS on the swallowing process, has led to an ongoing debate about its impact on swallowing function. In order to address this, we set out to (i) collect baseline information on the physiological effects of NMES on the complex pharyngeal phase of swallowing and (ii) to compare two different stimulation protocols...
March 30, 2017: Dysphagia
https://www.readbyqxmd.com/read/28358718/imaging-three-dimensional-innervation-zone-distribution-in-muscles-from-m-wave-recordings
#14
Chuan Zhang, Yun Peng, Yang Liu, Sheng Li, Ping Zhou, William Zev Rymer, Yingchun Zhang
OBJECTIVE: To localize neuromuscular junctions in skeletal muscles in vivo which is of great importance in understanding, diagnosing and managing of neuromuscular disorders. APPROACH: A three-dimensional global innervation zone imaging technique was developed to characterize the global distribution of innervation zones, as an indication of the location and features of neuromuscular junctions, using electrically evoked high-density surface electromyogram recordings...
March 30, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28343442/effectiveness-of-neuromuscular-electrical-stimulation-for-management-of-shoulder-subluxation-post-stroke-a-systematic-review-with-meta-analysis
#15
Jae-Hyoung Lee, Lucinda L Baker, Robert E Johnson, Julie K Tilson
OBJECTIVES: To examine the effectiveness of neuromuscular electrical stimulation (NMES) for the management of shoulder subluxation after stroke including assessment of short (1 hour or less) and long (more than one hour) daily treatment duration. DATA SOURCES: MEDLINE, CENTRAL, CINAHL, WOS, KoreaMed, RISS and reference lists from inception to January 2017 Review methods: We considered randomized controlled trials that reported neuromuscular electrical stimulation for the treatment of shoulder subluxation post-stroke...
March 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28338357/neuromuscular-fatigue-after-repeated-jumping-with-concomitant-electrical-stimulation
#16
Daria Neyroud, Jimmy Samararatne, Bengt Kayser, Nicolas Place
PURPOSE: We evaluated the etiology and extent of neuromuscular fatigue induced by fifty squat jumps performed with and without neuromuscular electrical stimulation (NMES) of the knee extensors. METHODS: Nine healthy recreationally active males (24 ± 2 years old) took part in two experiments. These consisted of fifty squat jumps performed with stimulation (NMES) or without (CON). Maximal voluntary contraction (MVC) force, maximal voluntary activation level (VAL) and forces evoked by single and double (10 and 100 Hz) stimulations were recorded before and after the fifty jumps...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28327054/effects-of-low-frequency-repetitive-transcranial-magnetic-stimulation-and-neuromuscular-electrical-stimulation-on-upper-extremity-motor-recovery-in-the-early-period-after-stroke-a-preliminary-study
#17
Aliye Tosun, Sabiha Türe, Ayhan Askin, Engin Ugur Yardimci, Secil Umit Demirdal, Tülay Kurt Incesu, Ozgur Tosun, Hikmet Kocyigit, Galip Akhan, Fazıl Mustafa Gelal
OBJECTIVE: To assess the efficacy of inhibitory repetitive transcranial magnetic stimulation (rTMS) and neuromuscular electrical stimulation (NMES) on upper extremity motor function in patients with acute/subacute ischemic stroke. METHODS: Twenty-five ischemic acute/subacute stroke subjects were enrolled in this randomized controlled trial. Experimental group 1 received low frequency (LF) rTMS to the primary motor cortex of the unaffected side + physical therapy (PT) including activities to improve strength, flexibility, transfers, posture, balance, coordination, and activities of daily living, mainly focusing on upper limb movements; experimental group 2 received the same protocol combined with NMES to hand extensor muscles; and the control group received only PT...
March 22, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28315283/effect-of-swallowing-rehabilitation-protocol-on-swallowing-function-in-patients-with-esophageal-atresia-and-or-tracheoesophageal-fistula
#18
Selen Serel Arslan, Tutku Soyer, Numan Demir, Sule Yalcın, Ayşe Karaduman, Ibrahim Karnak, Feridun Cahit Tanyel
Aim The aim of this study was to evaluate the results of Swallowing Rehabilitation Protocol (SRP) on swallowing function (SF) of esophageal atresia and tracheoesophageal fistula (EA-TEF) patients with pharyngeal swallowing disorder. Materials and Methods In this study, 24 children with EA-TEF who had deglutitive and respiratory problems were grouped into either study (n = 12) or control group (n = 12) by basic randomization. Study group received the SRP including neuromuscular electrical stimulation, thermal tactile stimulation, and hyolaryngeal mobilization...
March 17, 2017: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28314519/after-effects-of-peripheral-neurostimulation-on-brain-plasticity-and-ankle-function-in-chronic-stroke-the-role-of-afferents-recruited
#19
Louis-David Beaulieu, Hugo Massé-Alarie, Samuel Camiré-Bernier, Édith Ribot-Ciscar, Cyril Schneider
AIMS OF THE STUDY: This study tested the after-effects of neuromuscular electrical stimulation (NMES), repetitive peripheral magnetic stimulation (rPMS) and muscle tendon vibration (VIB) on brain plasticity and sensorimotor impairments in chronic stroke to investigate whether different results could depend on the nature of afferents recruited by each technique. MATERIALS AND METHODS: Fifteen people with chronic stroke participated in five sessions (one per week)...
March 14, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28291023/central-contribution-to-electrically-induced-fatigue-depends-on-stimulation-frequency
#20
Sidney Grosprêtre, Nicolas Gueugneau, Alain Martin, Romuald Lepers
PURPOSE: This study analyzed the impact of several protocols of neuromuscular electrical stimulation (NMES), matched with a similar total torque-time integral, on muscle activation pathways and neuromuscular fatigue. METHODS: Ten young healthy participants (age: 24.6 ± 4.2) performed 3 randomized NMES sessions on the triceps surae muscles with 20 Hz, 60 Hz or 100 Hz stimulation frequencies (pulse duration: 1 ms), with pulse amplitude (IES) set at 20 % of isometric maximal voluntary contraction (MVC)...
March 13, 2017: Medicine and Science in Sports and Exercise
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