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neuromuscular electrostimulation

Markus Lindkvist, Gabriel Granåsen, Christer Grönlund
During muscle contraction the excitation-contraction process mediates the neural input and mechanical output. Proper muscle function and body locomotion depends on the status of the elements in the same process. However, non-invasive and in-vivo methods to study this are not available. Here we show the existence of an optical response occurring during the excitation-contraction process in human biceps brachii muscle. We developed a non-invasive instrument from a photodiode array and light emitting diodes to detect spatially propagating (~5 m/s) and precontractile (~6 ms onset) optical signals closely related to the action potential during electrostimulation...
January 9, 2018: Scientific Reports
I V Reshetov, G V Polunin, A V Ananichuk, L I Ippolitov, A A Kovalenko
The restoration of the functional competence of the larynx following bilateral laryngeal nerve damage and vocal fold paralysis is a serious challenge for the surgeon that has thus far no satisfactory solution. Physiological re-innervation that occurs naturally with time is non-selective and, in the majority of the cases, leads to synkinesis. Laryngeal pacing achieved with the application of the implantable microchips appears to be a promising approach. The animal experiments have demonstrated the possibility of successful restoration of all the functions of the larynx by means of laryngeal pacing but simultaneously revealed a number of technical issues that have to be addressed if the further progress in this field is to be achieved including the choice of the proper materials for implantation, solution of problems pertaining to the neuromuscular mapping during pacer implantation, etc...
2017: Vestnik Otorinolaringologii
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...
April 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
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
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...
September 2017: International Urology and Nephrology
Laura Becerra Fajardo, Marieluise Schmidbauer, Antoni Ivorra
Existing implantable stimulators use powering approaches that result in stiff and bulky systems or result in systems incapable of producing the current magnitudes required for neuromuscular stimulation. This hampers their use in neuroprostheses for paralysis. We previously demonstrated an electrical stimulation method based on electronic rectification of high frequency (HF) current bursts. The implants act as rectifiers of HF current that flows through the tissues by galvanic coupling, transforming this current into low frequency current capable of performing neuromuscular stimulation...
October 31, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Laura Becerra-Fajardo, Marieluise Schmidbauer, Antoni Ivorra
Existing implantable stimulators use powering approaches that result in stiff and bulky systems or result in systems incapable of producing the current magnitudes required for neuromuscular stimulation. This hampers their use in neuroprostheses for paralysis. We previously demonstrated an electrical stimulation method based on electronic rectification of high frequency (HF) current bursts. The implants act as rectifiers of HF current that flows through the tissues by galvanic coupling, transforming this current into low frequency current capable of performing neuromuscular stimulation...
October 31, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
H Gueldich, N Zarrouk, H Chtourou, F Zghal, S Sahli, H Rebai
This study examined the effects of electrostimulation (ES) strength training at the same time-of-day on the diurnal fluctuations of maximal voluntary isometric contractions (MVIC) and surface electromyography (EMG). 20 male performed 3 MVICs of knee extension coupled with surface EMG before and after 5 weeks of 3 ES training sessions per week. Each ES training session consisted in 45 isometric contractions. The participants were randomly assigned to either a morning (MTG, 07:00-08:00 h) or an evening (ETG, 17:00-18:00 h) training group...
January 2017: International Journal of Sports Medicine
Nicky van Melick, Robert E H van Cingel, Frans Brooijmans, Camille Neeter, Tony van Tienen, Wim Hullegie, Maria W G Nijhuis-van der Sanden
AIM: The Royal Dutch Society for Physical Therapy (KNGF) instructed a multidisciplinary group of Dutch anterior cruciate ligament (ACL) experts to develop an evidence statement for rehabilitation after ACL reconstruction. DESIGN: Clinical practice guideline underpinned by systematic review and expert consensus. DATA SOURCES: A multidisciplinary working group and steering group systematically reviewed the literature and wrote the guideline...
December 2016: British Journal of Sports Medicine
Saliha Y Amasyali, Ayşe Yaliman
To determine the effectiveness of mirror therapy and electromyography (EMG)-triggered neuromuscular stimulation on improvement of functions of the upper extremity in patients with subacute stroke in comparison with conventional therapy as well as to evaluate the advantage of each treatment over another, we conducted a prospective, randomized, and controlled trial involving 24 patients with ischemic stroke. The mean age and mean time since stroke of the patients were 58.79±11.49 years and 5.25±2.25 months...
December 2016: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
Huda Jawad, Duncan S Bain, Helen Dawson, Kate Crawford, Atholl Johnston, Arthur Tucker
OBJECTIVE: This study compares the effectiveness of a neuromuscular electrostimulation device (geko T-1; Firstkind Ltd, High Wycombe, UK) in enhancing lower limb blood perfusion with two leading intermittent pneumatic compression (IPC) devices, the Huntleigh Flowtron Universal (Huntleigh Healthcare Ltd, Cardiff, UK) and the Kendall SCD Express (Covidien plc, Dublin, Ireland). The subjects' tolerance of the devices was also compared. METHODS: Ten healthy subjects were recruited...
April 2014: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Maura Griffin, Dawn Bond, Andrew Nicolaides
BACKGROUND: A previous study using electrical stimulation of the common peroneal nerve (geko™) to activate the venous muscle pump measured blood flow in both the femoral and popliteal veins. Increased blood flow by as much as 60% was demonstrated in the femoral vein. Such an increase is assumed to be as a result of an increase in venous flow from the deep calf veins; however this has yet to be confirmed. The aim of this study was to conduct direct measurements in these deep calf veins to confirm this assumption in healthy individuals...
August 2016: International Angiology: a Journal of the International Union of Angiology
R A Guzmán-Venegas, M P Bralic, J J Cordero, G Cavada, O F Araneda
BACKGROUND: The innervation zone (IZ) corresponds to the location of the neuromuscular junctions. Its location can be determined by using arranged surface linear electrode arrays. Typically, voluntary muscle contractions (VC) are used in this method. However, it also may be necessary to locate the IZ under clinical conditions such as spasticity, in which this type of contraction is difficult to perform. Therefore, contractions imposed by electrostimulation (ES) can be an alternative. There is little background comparing the locations of IZ obtained by two different types of contractions...
April 2016: Journal of Electromyography and Kinesiology
Kagan Ozer, Alvaro Rojas-Pena, Christopher L Mendias, Benjamin S Bryner, Cory Toomasian, Robert H Bartlett
PURPOSE: To test the potential for the ex situ limb perfusion system to prolong limb allograft survival up to 24 hours. METHODS: We used 20 swine for the study. In group 1 (control), 4 limbs were perfused with heparin solution and preserved at 4°C for 6 hours. In group 2, 4 limbs were perfused with autologous blood at 27°C to 32°C for 24 hours. In both groups, limbs were transplanted orthotopically to recipients and monitored for 12 hours. In addition to perfusion parameters, we recorded perfusate gases and electrolytes (pH, pCO2, pO2, O2 saturation, Na, K, Cl, Ca, HCO3, glucose, and lactate) and obtained functional electrostimulation hourly throughout the experiment...
January 2016: Journal of Hand Surgery
Vicent Esteve Simó, Anna Junque Jiménez, José Carneiro Oliveira, Fátima Moreno Guzmán, Miquel Fulquet Nicolás, Mónica Pou Potau, Anna Saurina Solé, Verónica Duarte Gallego, Irati Tapia González, Manel Ramírez de Arellano Serna
BACKGROUND: Haemodialysis (HD) patients are characterised by muscle wasting, decreased physical function and poor quality of life. The objective was to analyse the effect of an intradialysis NMES training programme in muscular strength, functional capacity and quality of life in our HD patients. MATERIAL: HD patients were assigned to NMES (ESG) or control group (CG) in a 12-week single-centre prospective study. Transversal quadriceps muscular area, maximum length quadriceps strength (MLQS), handgrip, sit-to-stand-to-sit 10 test (STS10), "6-min walking test" (6MWT); EuroQol-5D health-related quality of life (EQ-5D) questionnaire, subjective global assessment (SGA) and NMES symptoms questionnaires (SQ) were completed...
October 2015: International Urology and Nephrology
Toshiharu Natsume, Hayao Ozaki, Anneyuko I Saito, Takashi Abe, Hisashi Naito
PURPOSE: Low-load voluntary exercise can induce muscle hypertrophy and strength gain in working muscles when combined with blood flow restriction (BFR). However, it is unknown whether such hypertrophy and strength gain can be induced by involuntary muscle contractions triggered via low-intensity neuromuscular electrical stimulation (NMES) combined with BFR. The purpose of this article was to investigate whether low-intensity NMES combined with BFR (NMES-BFR) could elicit muscle hypertrophy and strength gain in the quadriceps...
December 2015: Medicine and Science in Sports and Exercise
Shouyao Liu, Rongguo Wang, Dan Luo, Qianwei Xu, Cheng Xiao, Peng Lin, Zhange Yu, Xuanji Zhao, Rongrong Cai, Jinhui Ma, Qingxi Zhang, Yunting Wang
BACKGROUND: Our preliminary studies indicated that electroacupuncture (EA) at the ST36 and Ashi acupoints could promote regeneration of the rabbit gastrocnemius (GM) by improving microcirculation perfusion, promoting the recovery of myofiber structures, and inhibiting excessive fibrosis. However, the effects of EA on recovery of the electrophysiological properties of the GM after contusion are not yet clear. Thus, the purpose of this study was to investigate the effects of EA at the Zusanli (ST36) and Ashi acupoints with regard to recovery of the electrophysiological properties of the rabbit GM after contusion...
March 19, 2015: BMC Complementary and Alternative Medicine
Guiting Lin, Huixi Li, Xiaoyu Zhang, Jianwen Wang, Uwais Zaid, Melissa T Sanford, Victor Tu, Alex Wu, Lin Wang, Fei Tian, Helen Kotanides, Venkatesh Krishnan, Guifang Wang, Hongxiu Ning, Lia Banie, Ching-Shwun Lin, Gary G Deng, Tom F Lue
BACKGROUND: Erectile dysfunction (ED) is a major health issue in aged populations, and neurogenic ED is particularly difficult to treat. Novel therapeutic approaches are needed for treatment of neurogenic ED of peripheral origin. OBJECTIVE: To investigate the therapeutic effects of a neurotrophic tyrosine kinase receptor type 1 monoclonal antibody (TrkA-mAb) on erectile function and sexual behavior in a rat model of cavernous nerve injury (CNI). DESIGN, SETTING, AND PARTICIPANTS: In one experiment, 84 male rats were randomly assigned to seven groups...
April 2015: European Urology
M Bayon-Mottu, G Gambart, X Deries, C Tessiot, I Richard, M Dinomais
OBJECTIVE: In this study, we consider two localization techniques used in injections of botulinium toxin in children: electrical stimulation and ultrasound. The hypothesis of this work was that injections performed without stimulation would be less painful. PATIENTS AND METHODS: Monocentric prospective study, with 107 sessions of lower limb injections. Two groups of children were compared: localization by ultrasound only (60 children), detection by stimulation only or by stimulation combined with ultrasound (47 children)...
December 2014: Annals of Physical and Rehabilitation Medicine
Jennifer A Summers, James Clinch, Muralikrishnan Radhakrishnan, Andy Healy, Viktoria McMillan, Elizabeth Morris, Tiago Rua, Mercy Ofuya, Yanzhong Wang, Paul W Dimmock, Cornelius Lewis, Janet L Peacock, Stephen F Keevil
The geko™ device is a single-use, battery-powered, neuromuscular electrostimulation device that aims to reduce the risk of venous thromboembolism (VTE). The National Institute for Health and Care Excellence (NICE) selected the geko™ device for evaluation, and invited the manufacturer, Firstkind Ltd, to submit clinical and economic evidence. King's Technology Evaluation Centre, an External Assessment Centre (EAC) commissioned by the NICE, independently assessed the evidence submitted. The sponsor submitted evidence related to the geko™ device and, in addition, included studies of other related devices as further clinical evidence to support a link between increased blood flow and VTE prophylaxis...
April 2015: Applied Health Economics and Health Policy
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