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https://www.readbyqxmd.com/read/28636643/neuromuscular-electrical-stimulation-prevents-skeletal-muscle-dysfunction-in-adjuvant-induced-arthritis-rat
#1
Koichi Himori, Daisuke Tatebayashi, Keita Kanzaki, Masanobu Wada, Håkan Westerblad, Johanna T Lanner, Takashi Yamada
Skeletal muscle weakness is a prominent feature in patients with rheumatoid arthritis (RA). In this study, we investigated whether neuromuscular electrical stimulation (NMES) training protects against skeletal muscle dysfunction in rats with adjuvant-induced arthritis (AIA). AIA was produced by intraarticular injection of complete Freund's adjuvant into the knees of Wistar rats. For NMES training, dorsiflexor muscles were stimulated via a surface electrode (0.5 ms pulse, 50 Hz, 2 s on/4 s off). NMES training was performed every other day for three weeks and consisted of three sets produced at three min intervals...
2017: PloS One
https://www.readbyqxmd.com/read/28621488/effects-of-intradialytic-neuromuscular-electrical-stimulation-on-strength-and-muscle-architecture-in-patients-with-chronic-kidney-failure-randomized-clinical-trial
#2
Jociane Schardong, Thiago Dipp, Camila Bassani Bozzeto, Marília Godoy da Silva, Gabriela Leivas Baldissera, Raíssa de Castro Ribeiro, Bruna Pan Valdemarca, Alexandre Severo do Pinho, Graciele Sbruzzi, Rodrigo Della Méa Plentz
This study aimed to evaluate the effects of neuromuscular electrical stimulation (NMES) on muscle strength and architecture, functional capacity, and endothelial function in patients with chronic kidney failure (CKF) on hemodialysis (HD). Twenty-one patients with CKF on HD were randomized into a control group (CG; n = 10) and neuromuscular electrical stimulation group (NMESG; n = 11) who received NMES in the quadriceps muscle for 8 weeks, 3 times/week (20-34 min) during HD sessions. The muscle strength of the lower limbs was evaluated by dynamometry and sit-and-stand test (SST); muscle architecture through ultrasonography; functional capacity by the distance covered in a 6-min walk test and the endothelial function by flow-mediated dilatation technique of the brachial artery...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28610968/comparison-of-the-effect-of-sensory-level-and-conventional-motor-level-neuromuscular-electrical-stimulation-on-quadriceps-strength-after-total-knee-arthroplasty-a-prospective-randomized-single-blind-trial
#3
Yosuke Yoshida, Koki Ikuno, Koji Shomoto
OBJECTIVE: To compare sensory-level neuromuscular electrical stimulation (sNMES) and conventional motor- level neuromuscular electrical stimulation (mNMSE ) in patients after total knee arthroplasty (TKA). DESIGN: A prospective randomized single-blind trial. SETTING: A hospital total arthroplasty center: inpatients. PARTICIPANTS: Patients with osteoarthritis (N=66, 85% women, mean age 73.5±6.3y) were randomized to receive either sNMES applied to the quadriceps (the sNMES group), mNMES (the mNMES group), or no stimulation (the Control group) in addition to a standard rehabilitation program...
June 10, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28577338/specific-brain-activation-patterns-associated-with-two-neuromuscular-electrical-stimulation-protocols
#4
Jennifer Wegrzyk, Jean-Philippe Ranjeva, Alexandre Fouré, Anne Kavounoudias, Christophe Vilmen, Jean-Pierre Mattei, Maxime Guye, Nicola A Maffiuletti, Nicolas Place, David Bendahan, Julien Gondin
The influence of neuromuscular electrical stimulation (NMES) parameters on brain activation has been scarcely investigated. We aimed at comparing two frequently used NMES protocols - designed to vary in the extent of sensory input. Whole-brain functional magnetic resonance imaging was performed in sixteen healthy subjects during wide-pulse high-frequency (WPHF, 100 Hz-1 ms) and conventional (CONV, 25 Hz-0.05 ms) NMES applied over the triceps surae. Each protocol included 20 isometric contractions performed at 10% of maximal force...
June 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28572500/neuromuscular-electrical-stimulation-improves-skeletal-muscle-regeneration-through-satellite-cell-fusion-with-myofibers-in-healthy-elderly-subjects
#5
Ester Sara Di Filippo, Rosa Mancinelli, Mariangela Marrone, Christian Doria, Vittore Verratti, Luana Toniolo, Josè Luiz Dantas, Stefania Fulle, Tiziana Pietrangelo
The aim was to determine whether neuromuscular electrical stimulation (NMES) affects skeletal muscle regeneration through a reduction of oxidative status in satellite cells of healthy elderly subjects. Satellite cells from the Vastus lateralis skeletal muscle of 12 healthy elderly subjects before and after 8 weeks of NMES were allowed to proliferate to provide myogenic populations of adult stem cells (myogenic precursor cells; MPCs). These MPCs were then investigated in terms of their proliferation, their basal cytoplasmic free Ca(2+) concentrations, and their expression of myogenic regulatory factors (PAX3, PAX7, MYF5, MYOD, MYOG) and microRNAs (miR-1, miR-133a/b, miR-206)...
June 1, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28567858/optimization-of-interphase-intervals-to-enhance-the-evoked-muscular-responses-of-transcutaneous-neuromuscular-electrical-stimulation
#6
Jose Luis Vargas Luna, Matthias Krenn, Winfried Mayr, Jorge Armando Cortés Ramírez
Neuromuscular electrical stimulation (NMES) is a widely used technique for clinical diagnostic, treatment, and research. Normally, it applies charge-balanced biphasic pulses, which several publications have reported to be less efficient than monophasic pulses. A good alternative is the use of interphase intervals (IPI) on biphasic pulses that allows to achieve similar responses than those evoked by monophasic stimulation. This study analyzes the enhancing mechanism of the IPI and provides guidelines on how to optimize the IPI in order to reduce secondary effects such as the electrode corrosion...
June 1, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28556590/biocompatibility-of-four-common-orthopedic-biomaterials-following-neuroelectromyostimulation-an-in-vivo-study
#7
Lecocq Mathieu, Felix Marie-Solenne, Bernard Cécile, Linares Jean-Marc, Chaves-Jacob Julien, Decherchi Patrick, Dousset Erick
Despite the worldwide high prevalence of total joint arthroplasty (TJA), life expectancy of prosthesis remains limited by mechanical and chemical constraint which promote wear debris production, surrounding tissues damage and finally prosthesis loosening. Such results could be amplified by neuro-myoelectrostimulation (NMES; widely used to reduce neuromuscular deficits observed following TJA surgery). It was previously described in an in vivo experiment that interactions between NMES and Ti6Al4V implant are deleterious for both implant and surrounding muscles...
May 29, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28527228/efficacy-of-neuromuscular-electrical-stimulation-for-preventing-quadriceps-muscle-wasting-in-patients-with-moderate-or-severe-acute-stroke-a-pilot-study
#8
Masafumi Nozoe, Masashi Kanai, Hiroki Kubo, Yuka Takeuchi, Miki Kobayashi, Miho Yamamoto, Asami Furuichi, Makoto Yamazaki, Shinichi Shimada, Kyoshi Mase
BACKGROUND: Stroke-related muscle wasting is one of the factors leading to long-term disability and functional dependency. No study has reported an effective therapeutic intervention for such muscle wasting. OBJECTIVE: The purpose of this study was to investigate the effects of neuromuscular electrical stimulation (NMES) on quadriceps muscle mass preservation in patients with acute moderate or severe stroke by using ultrasonography (US). METHODS: Twenty patients with acute, moderate, or severe stroke (age: 68±11 years) were divided into usual care group (control group) and intervention groups (NMES group), respectively...
May 19, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28513326/the-effects-of-blood-flow-restricted-electrostimulation-on-strength-hypertrophy
#9
Joshua Slysz, Jamie F Burr
CONTEXT: The combined effect of neuromuscular electrical muscle stimulation (NMES) and blood flow restriction (BFR) on muscle mass and strength has not been thoroughly investigated. OBJECTIVE: To examine the effects of combined and independent BFR and a low-intensity NMES on skeletal muscle adaptation. DESIGN: Exploratory Study. SETTING: Laboratory. PARTICIPANTS: Twenty recreationally active subjects...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28500007/a-wearable-multi-site-system-for-nmes-based-hand-function-restoration
#10
Andrea Crema, Nebojsa Malesevic, Ivan Furfaro, Flavio Raschella, Alessandra Pedrocchi, Silvestro Micera
Reaching and grasping impairments significantly affect the quality of life for people who have experienced a stroke or spinal cord injury (SCI). The long-term well-being of patients varies greatly according to the restorable residual capabilities. Electrical stimulation could be a promising solution to restore motor functions in these conditions, but its use is not clinically widespread.
May 10, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28482746/neuromuscular-electrical-stimulation-combined-with-protein-ingestion-preserves-thigh-muscle-mass-but-not-muscle-function-in-healthy-older-adults-during-5-days-of-bed-rest
#11
Paul T Reidy, Alec I McKenzie, Preston Brunker, Daniel S Nelson, Katherine M Barrows, Mark Supiano, Paul C LaStayo, Micah J Drummond
Short-term bed rest in older adults is characterized by significant loss in leg lean mass and strength posing significant health consequences. The purpose of this study was to determine in healthy older adults if the daily combination of neuromuscular electrical stimulation and protein supplementation (NMES+PRO) would protect muscle mass and function after 5 days of bed rest. Twenty healthy older adults (∼70 years) were subjected to 5 days of continuous bed rest and were randomized into one of two groups: NMES+PRO (n = 10) or control (CON) (n = 10)...
June 19, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28464800/effect-of-tendon-vibration-during-wide-pulse-neuromuscular-electrical-stimulation-nmes-on-the-decline-and-recovery-of-muscle-force
#12
Vanesa Bochkezanian, Robert U Newton, Gabriel S Trajano, Amilton Vieira, Timothy S Pulverenti, Anthony J Blazevich
BACKGROUND: Neuromuscular electrical stimulation (NMES) is commonly used to activate skeletal muscles and reverse muscle atrophy in clinical populations. Clinical recommendations for NMES suggest the use of short pulse widths (100-200 μs) and low-to-moderate pulse frequencies (30-50 Hz). However, this type of NMES causes rapid muscle fatigue due to the (non-physiological) high stimulation intensities and non-orderly recruitment of motor units. The use of both wide pulse widths (1000 μs) and tendon vibration might optimize motor unit activation through spinal reflex pathways and thus delay the onset of muscle fatigue, increasing muscle force and mass...
May 2, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28446181/a-neuromuscular-electrical-stimulation-nmes-and-robot-hybrid-system-for-multi-joint-coordinated-upper-limb-rehabilitation-after-stroke
#13
Wei Rong, Waiming Li, Mankit Pang, Junyan Hu, Xijun Wei, Bibo Yang, Honwah Wai, Xiaoxiang Zheng, Xiaoling Hu
BACKGROUND: It is a challenge to reduce the muscular discoordination in the paretic upper limb after stroke in the traditional rehabilitation programs. METHOD: In this study, a neuromuscular electrical stimulation (NMES) and robot hybrid system was developed for multi-joint coordinated upper limb physical training. The system could assist the elbow, wrist and fingers to conduct arm reaching out, hand opening/grasping and arm withdrawing by tracking an indicative moving cursor on the screen of a computer, with the support from the joint motors and electrical stimulations on target muscles, under the voluntary intention control by electromyography (EMG)...
April 26, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28436401/effects-of-amplitude-and-phase-duration-modification-on-electrically-induced-contraction-force-and-discomfort
#14
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/28432606/neuromuscular-electrostimulation-a-new-therapeutic-option-to-improve-radio-cephalic-arteriovenous-fistula-maturation-in-end-stage-chronic-kidney-disease-patients
#15
Lucia Martinez, Vicent Esteve, Montserrat Yeste, Vicent Artigas, Secundino Llagostera
BACKGROUND: Radio-cephalic arteriovenous fistula (RCAVF) is the gold standard vascular access for end-stage chronic kidney disease patients. Exercises after arteriovenous fistula (AVF) creation improve maturation. No articles are published regarding neuromuscular electrostimulation (NMES) in AVF maturation. OBJECTIVES: To assess the usefulness of a NMES programme on RCAVF maturation process. METHODS: An 8-week single-centre prospective study...
April 21, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28414846/clinical-trials-in-latin-america-implications-for-the-sustainability-and-safety-of-pharmaceutical-markets-and-the-wellbeing-of-research-subjects
#16
Núria Homedes, Antonio Ugalde
This study sought to verify whether drugs approved by the US Food and Drug Administration (FDA) were registered, commercialized and sold at affordable prices in the Latin American countries where they had been tested, as well as to ascertain their contribution to the quality of the pharmaceutical market. The list of New Molecular Entities (NMEs) approved by the FDA in 2011 and 2012 was consulted to determine the countries where pivotal trials were conducted. Affordability was assessed as a proportion of income and information on safety and efficacy was gathered from independent drug bulletins...
July 2016: Salud Colectiva
https://www.readbyqxmd.com/read/28388333/blunted-myoglobin-and-quadriceps-soreness-after-electrical-stimulation-during-the-luteal-phase-or-oral-contraception
#17
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...
June 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/28364678/effect-of-neuromuscular-stimulation-and-individualized-rehabilitation-on-muscle-strength-in-intensive-care-unit-survivors-a-randomized-trial
#18
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
#19
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
#20
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
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