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"tDCS" OR transcranial direct current stimulation OR Eletric stimulation AND exercise

L Angius, B Pageaux, J Hopker, S M Marcora, A R Mauger
Transcranial direct current stimulation (tDCS) can increase cortical excitability of a targeted brain area, which may affect endurance exercise performance. However, optimal electrode placement for tDCS remains unclear. We tested the effect of two different tDCS electrode montages for improving exercise performance. Nine subjects underwent a control (CON), placebo (SHAM) and two different tDCS montage sessions in a randomised design. In one tDCS session, the anodal electrode was placed over the left motor cortex and the cathodal on contralateral forehead (HEAD), while for the other montage the anodal electrode was placed over the left motor cortex and cathodal electrode above the shoulder (SHOULDER)...
October 14, 2016: Neuroscience
Sangeetha Madhavan, James W Stinear, Neeta Kanekar
Objective. High intensity interval treadmill training (HIITT) has been gaining popularity for gait rehabilitation after stroke. In this study, we examined the changes in excitability of the lower limb motor cortical representation (M1) in chronic stroke survivors following a single session of HIITT. We also determined whether exercise-induced changes in excitability could be modulated by transcranial direct current stimulation (tDCS) enhanced with a paretic ankle skill acquisition task. Methods. Eleven individuals with chronic stroke participated in two 40-minute treadmill-training sessions: HIITT alone and HITT preceded by anodal tDCS enhanced with a skill acquisition task (e-tDCS+HIITT)...
2016: Neural Plasticity
Étienne Ojardias, Oscar Azeo, Diana Rimaud, Pascal Giraux
OBJECTIVE: Transcortical direct current stimulation (tDCS) is an emerging technique in the rehabilitation of hemiplegic patients after stroke, and has been mainly evaluated for the upper limb. The feasibility and tolerance of the use of repeated stimulations on the lower limb motor cortex require a clinical evaluation. OBSERVATIONS: A 72-year-old patient, who suffered from a first ischemic stroke in the left middle cerebral artery area, on July 2015, was admitted, 6 months post-stroke, to the PRM outpatient clinic of the university hospital of Saint-Étienne, for a motor training program combined with iterative tDCS stimulations...
September 2016: Annals of Physical and Rehabilitation Medicine
R Darkow, A Flöel
Speech and language therapy is essential in the rehabilitation of aphasic disorders following a stroke. Due to the predicted increase of aphasia and limited resources within the healthcare system, the development of efficient and sustainable treatment methods is of exceptional importance. The effectiveness of both traditional and innovative approaches needs to be evaluated against the standards of evidence-based medicine. Class I evidence has been established for high-intensity speech and language therapy in subacute and chronic stages of aphasia...
October 2016: Der Nervenarzt
Rafael A Montenegro, Adrian Midgley, Renato Massaferri, Wendell Bernardes, Alexandre H Okano, Paulo Farinatti
Post-stroke patients usually exhibit reduced peak muscular torque (PT) and/or force steadiness during submaximal exercise. Brain stimulation techniques have been proposed to improve neural plasticity and help to restore motor performance in post-stroke patients. The present study compared the effects of bihemispheric motor cortex transcranial direct current stimulation (tDCS) on PT and force steadiness during maximal and submaximal resistance exercise performed by post-stroke patients vs. healthy controls. A double-blind randomized crossover controlled trial (identification number: TCTR20151112001; URL: http://www...
2016: Frontiers in Human Neuroscience
Martin J Barwood, Jake Butterworth, Stuart Goodall, James R House, Ryan Laws, Alexander Nowicky, Jo Corbett
BACKGROUND: Transcranial direct current stimulation (tDCS) is a non-invasive neuromodulatory technique and has previously been shown to enhance submaximal exercise by reducing rating of perceived exertion (RPE). The present study examined the effects of tDCS on high-intensity self-paced exercise in temperate conditions and fixed followed by maximal exercise in the heat; it was hypothesised that performance and RPE would be altered. METHODS: Two separate studies were undertaken in which exercise was preceded by 20-minutes of sham tDCS (SHAM), or anodal tDCS (TDCS)...
July 20, 2016: Brain Stimulation
Gilmar Esteves, Yuri Motoyama, Domingos Pandeló, Paulo Pereira, Rafael Pereira, Paulo Azevedo
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Patricia J Ward, Laura N Jones, Amanda Mulligan, William Goolsby, Jennifer C Wilhelm, Arthur W English
Peripheral nerve injuries are common, and functional recovery is very poor. Beyond surgical repair of the nerve, there are currently no treatment options for these patients. In experimental models of nerve injury, interventions (such as exercise and electrical stimulation) that increase neuronal activity of the injured neurons effectively enhance axon regeneration. Here, we utilized optogenetics to determine whether increased activity alone is sufficient to promote motor axon regeneration. In thy-1-ChR2/YFP transgenic mice in which a subset of motoneurons express the light-sensitive cation channel, channelrhodopsin (ChR2), we activated axons in the sciatic nerve using blue light immediately prior to transection and surgical repair of the sciatic nerve...
2016: PloS One
Nico Sollmann, Sebastian Ille, Tobias Boeckh-Behrens, Florian Ringel, Bernhard Meyer, Sandro M Krieg
BACKGROUND: Functional magnetic resonance imaging (fMRI) is considered to be the standard method regarding non-invasive language mapping. However, repetitive navigated transcranial magnetic stimulation (rTMS) gains increasing importance with respect to that purpose. However, comparisons between both methods are sparse. METHODS: We performed fMRI and rTMS language mapping of the left hemisphere in 40 healthy, right-handed subjects in combination with the tasks that are most commonly used in the neurosurgical context (fMRI: word-generation = WGEN task; rTMS: object-naming = ON task)...
July 2016: Acta Neurochirurgica
Eduardo Lattari, Maria L Andrade, Alberto S Filho, Antônio M Moura, Geraldo M Neto, Júlio G Silva, Nuno B Rocha, Ti-Fei Yuan, Oscar Arias-Carrión, Sérgio Machado
The goal of this study was to evaluate the acute efficacy of anodic transcranial direct current stimulation on the total volume of repetitions and perceived exertion in recreationally trained individuals in strength. The sample consisted of 10 participants trained in exercise against resistance for at least three months. Participants underwent elbow flexion exercise at barbell with specific load of 10RM, responded immediately after the OMNI-RES scale and were stimulated for 20 minutes with a tDSC protocols (2 mA), depending on randomization...
April 19, 2016: Journal of Strength and Conditioning Research
Mariana E Mendonca, Marcel Simis, Luanda C Grecco, Linamara R Battistella, Abrahão F Baptista, Felipe Fregni
UNLABELLED: Fibromyalgia is a chronic pain syndrome that is associated with maladaptive plasticity in neural central circuits. One of the neural circuits that are involved in pain in fibromyalgia is the primary motor cortex. We tested a combination intervention that aimed to modulate the motor system: transcranial direct current stimulation (tDCS) of the primary motor cortex (M1) and aerobic exercise (AE). In this phase II, sham-controlled randomized clinical trial, 45 subjects were assigned to 1 of 3 groups: tDCS + AE, AE only, and tDCS only...
2016: Frontiers in Human Neuroscience
Joyce L Chen, Gottfried Schlaug
Non-invasive stimulation of the brain using transcranial direct current stimulation (tDCS) during motor rehabilitation can improve the recovery of movements in individuals with stroke. However, the neural substrates that underlie the clinical improvements are not well understood. In this proof-of-principle open-label pilot study, five individuals with stroke received 10 sessions of tDCS while undergoing usual care physical/occupational therapy for the arm and hand. Motor impairment as indexed by the Upper Extremity Fugl Meyer assessment was significantly reduced after the intervention...
2016: Scientific Reports
Kentaro Oki, Niladri K Mahato, Masato Nakazawa, Shinichi Amano, Christopher R France, David W Russ, Brian C Clark
BACKGROUND: Decreased cortical excitability has been proposed as a potential mechanism underlying task failure during sustained muscular contractions, and cortical excitability may decrease with old age. We tested the hypothesis that transcranial direct current stimulation, which has been reported to raise cortical excitability, would prolong the time to task failure during a sustained muscular contraction in older adults. METHODS: Thirteen older adults (68.3±2...
August 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
Rosa Manenti, Michela Brambilla, Alberto Benussi, Sandra Rosini, Chiara Cobelli, Clarissa Ferrari, Michela Petesi, Italo Orizio, Alessandro Padovani, Barbara Borroni, Maria Cotelli
BACKGROUND: Parkinson's disease (PD) is characterized by both motor and cognitive deficits. In PD, physical exercise has been found to improve physical functioning. Recent studies demonstrated that repeated sessions of transcranial direct current stimulation led to an increased performance in cognitive and motor tasks in patients with PD. OBJECTIVES: The present study investigated the effects of anodal transcranial direct current stimulation applied over the dorsolateral prefrontal cortex and combined with physical therapy in PD patients...
May 2016: Movement Disorders: Official Journal of the Movement Disorder Society
Morufu Olusola Ibitoye, Nur Azah Hamzaid, Nazirah Hasnan, Ahmad Khairi Abdul Wahab, Glen M Davis
BACKGROUND: Rapid muscle fatigue during functional electrical stimulation (FES)-evoked muscle contractions in individuals with spinal cord injury (SCI) is a significant limitation to attaining health benefits of FES-exercise. Delaying the onset of muscle fatigue is often cited as an important goal linked to FES clinical efficacy. Although the basic concept of fatigue-resistance has a long history, recent advances in biomedical engineering, physiotherapy and clinical exercise science have achieved improved clinical benefits, especially for reducing muscle fatigue during FES-exercise...
2016: PloS One
Marleen Welkenhuysen, Luis Hoffman, Zhengxiang Luo, Anabel De Proft, Chris Van den Haute, Veerle Baekelandt, Zeger Debyser, Georges Gielen, Robert Puers, Dries Braeken
Modulation of a group of cells or tissue needs to be very precise in order to exercise effective control over the cell population under investigation. Optogenetic tools have already demonstrated to be of great value in the study of neuronal circuits and in neuromodulation. Ideally, they should permit very accurate resolution, preferably down to the single cell level. Further, to address a spatially distributed sample, independently addressable multiple optical outputs should be present. In current techniques, at least one of these requirements is not fulfilled...
2016: Scientific Reports
Mario Moisés Alvarez, Julie C Liu, Grissel Trujillo-de Santiago, Byung-Hyun Cha, Ajaykumar Vishwakarma, Amir Ghaemmaghami, Ali Khademhosseini
Macrophages are key players in many physiological scenarios including tissue homeostasis. In response to injury, typically the balance between macrophage sub-populations shifts from an M1 phenotype (pro-inflammatory) to an M2 phenotype (anti-inflammatory). In tissue engineering scenarios, after implantation of any device, it is desirable to exercise control on this M1-M2 progression and to ensure a timely and smooth transition from the inflammatory to the healing stage. In this review, we briefly introduce the current state of knowledge regarding macrophage function and nomenclature...
January 14, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
Marcelo Vitor-Costa, Nilo Massaru Okuno, Henrique Bortolotti, Maurizio Bertollo, Paulo Sergio Boggio, Felipe Fregni, Leandro Ricardo Altimari
The central nervous system seems to have an important role in fatigue and exercise tolerance. Novel noninvasive techniques of neuromodulation can provide insights on the relationship between brain function and exercise performance. The purpose of this study was to determine the effects of transcranial direct current stimulation (tDCS) on physical performance and physiological and perceptual variables with regard to fatigue and exercise tolerance. Eleven physically active subjects participated in an incremental test on a cycle simulator to define peak power output...
2015: PloS One
Fabiana Tenório Gomes Silva, Jeferson Tafarel Pereira Rêgo, Francisco Rômulo Raulino, Marília Rodrigues Silva, Franceline Reynaud, Eryvaldo Sócrates Tabosa Egito, Paulo Moreira Silva Dantas
PURPOSE: To report the effect of the transcranial direct current stimulation (tDCS) applied over the primary motor cortex (M1) of an individual, a sedentary male subject with complete chronic spinal cord injury at the T11-T12 levels. METHODS: The individual underwent three experimental sessions: control, sham and anodal tDCS. Before, during and after exercise sessions, the following variables were recorded: heart rate variability, Rating of Perceived Exertion (RPE), power and glucose (this one only before and after the exercise)...
December 2015: Autonomic Neuroscience: Basic & Clinical
Wei-Ju Chang, Kim L Bennell, Paul W Hodges, Rana S Hinman, Matthew B Liston, Siobhan M Schabrun
INTRODUCTION: Osteoarthritis (OA) is a major health problem and a leading cause of disability. The knee joint is commonly affected, resulting in pain and physical dysfunction. Exercise is considered the cornerstone of conservative management, yet meta-analyses indicate, at best, moderate effect sizes. Treatments that bolster the effects of exercise, such as transcranial direct current stimulation (tDCS), may improve outcomes in knee OA. The aims of this pilot study are to (1) determine the feasibility, safety and perceived patient response to a combined tDCS and exercise intervention in knee OA, and (2) provide data to support a sample size calculation for a fully-powered trial should trends of effectiveness be present...
2015: BMJ Open
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