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Shiravand F, Motamedi P, Amani-Shalamzari S, Amiri E, da Silva Machado DG. Effect of repeated sessions of transcranial direct current stimulation on subjective and objective measures of recovery and performance in soccer players following a soccer match simulation. Sci Rep 2024; 14:20809. [PMID: 39242725 PMCID: PMC11379740 DOI: 10.1038/s41598-024-71701-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 08/30/2024] [Indexed: 09/09/2024] Open
Abstract
We investigated the effect of repeated sessions of anodal transcranial direct current stimulation (a-tDCS) on subjective and objective measures of recovery, cognitive and sport-specific performance in professional soccer players following a soccer match simulation (SMS). Sixteen soccer players participated in this randomized, crossover, and sham-controlled study. They completed baseline assessments of well-being, total quality recovery (TQR), electromyographic activity (EMG) of the thigh muscles, countermovement jump (CMJ), and cognitive and Loughborough soccer passing test (LSPT) skills. Then, the participants engaged in an SMS routine (2 × 45 min, 15-min intervals). There was no significant difference in rating of perceived exertion (RPE) during the SMS in the anodal (17.25 ± 0.85) and sham (16.93 ± 0.92) conditions (p = 0.19). Following the SMS, the participants were randomized to receive three sessions of a-tDCS (2 mA, 20 min, +F3/-F4) targeting the left dorsolateral prefrontal cortex (DLPFC) or sham immediately after, 24 h, and 48 h after the SMS. Finally, the same outcome measures were evaluated 24 and 48 h following the SMS. A two-way repeated-measures ANOVA showed that a-tDCS stimulation improved passing skills (decreased time to perform the LSPT and number of errors; all ps < 0.01; d = 0.56-2.9) and increased the feeling of well-being (p = 0.02; d = 2.8), with no effect on TQR, cognitive performance, CMJ performance, and EMG. Therefore, the results of the present study indicate, for the first time, that repeated a-tDCS could be used as an adjunct method to accelerate soccer players' well-being and technical performance recovery, particularly after congested matches and/or training sessions. These findings may also be applicable to other team sports with characteristics similar to soccer (e.g., futsal, handball, basketball, etc.).
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Affiliation(s)
- Fatemeh Shiravand
- Department of Exercise Physiology, Faculty of Physical Education and Sports Science, Kharazmi University, Tehran, Iran
| | - Pezhman Motamedi
- Department of Exercise Physiology, Faculty of Physical Education and Sports Science, Kharazmi University, Tehran, Iran
| | - Sadegh Amani-Shalamzari
- Department of Exercise Physiology, Faculty of Physical Education and Sports Science, Kharazmi University, Tehran, Iran.
| | - Ehsan Amiri
- Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, Kermanshah, Iran
| | - Daniel Gomes da Silva Machado
- Research Group in Neuroscience of Human Movement (NeuroMove), Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil
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Holgado D, Sanabria D, Vadillo MA, Román-Caballero R. Zapping the brain to enhance sport performance? An umbrella review of the effect of transcranial direct current stimulation on physical performance. Neurosci Biobehav Rev 2024; 164:105821. [PMID: 39053786 DOI: 10.1016/j.neubiorev.2024.105821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/09/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
Concepts such as "neurodoping" have contributed to an expansion in the area of transcranial direct current stimulation (tDCS) and its impact over physical performance in recent years. This umbrella review examines meta-analyses to evaluate tDCS's impact on exercise performance in healthy individuals. We identified 9 meta-analyses that met our inclusion criteria, encompassing 50 crossover studies and 683 participants. Like previous meta-analyses, we found a small but significant effect across individual studies (gz = 0.28, 95%CI [0.18, 0.39]). However, we also found clear evidence of publication bias, low power and substantial variability in methodological decisions. The average effect became non-significant after accounting for publication bias (grm = 0.10, 95%CrI [-0.04, 0.20], BF10 = 0.99), and a specification curve analysis showed that the final effect could range from g = -0.23 to g = 0.33, depending on decisions such as the formula used for estimating the effect size and multiple additional analytic steps. Overall, our findings suggest that current evidence does not conclusively support acute tDCS as an exercise performance enhancer.
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Affiliation(s)
- Darías Holgado
- Institute of Sport Sciences, University of Lausanne, Quartier, UNIL-Centre, Bâtiment, Synathlon, Lausanne, Switzerland; Department of Experimental Psychology, University of Granada, Spain; Mind, Brain & Behavior Research Center, University of Granada, Spain.
| | - Daniel Sanabria
- Department of Experimental Psychology, University of Granada, Spain; Mind, Brain & Behavior Research Center, University of Granada, Spain
| | - Miguel A Vadillo
- Department of Basic Psychology, Autonomous University of Madrid, Madrid, Spain
| | - Rafael Román-Caballero
- Department of Experimental Psychology, University of Granada, Spain; Mind, Brain & Behavior Research Center, University of Granada, Spain; Department of Psychology Neuroscience, and Behaviour, McMaster University, Hamilton, Canada; McMaster Institute for Music and the Mind, McMaster University, Hamilton, Canada
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3
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Winker M, Hoffmann S, Laborde S, Javelle F. The acute effects of motor cortex transcranial direct current stimulation on athletic performance in healthy adults: A systematic review and meta-analysis. Eur J Neurosci 2024; 60:5086-5110. [PMID: 39120435 DOI: 10.1111/ejn.16488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 07/02/2024] [Accepted: 07/13/2024] [Indexed: 08/10/2024]
Abstract
This systematic review and meta-analysis assesses independently the acute effects of anodal and cathodal motor cortex transcranial direct current stimulation (tDCS) on athletic performance in healthy adults. Besides, it evaluates the unique and conjoint effects of potential moderators (i.e., stimulation parameters, exercise type, subjects' training status and risk of bias). Online database search was performed from inception until March 18th 2024 (PROSPERO: CRD42023355461). Forty-three controlled trials were included in the systematic review, 40 in the anodal tDCS meta-analysis (68 effects), and 9 (11 effects) in the cathodal tDCS meta-analysis. Performance enhancement between pre- and post-stimulation was the main outcome measure considered. The anodal tDCS effects on physical performance were small to moderate (g = .29, 95%CI [.18, .40], PI = -.64 to 1.23, I2 = 64.0%). Exercise type, training status and use of commercial tDCS were significant moderators of the results. The cathodal tDCS effects were null (g = .04, 95%CI [-.05, .12], PI = -.14 to .23, I2 = 0%), with a small to moderate heterogeneity entirely due to sampling error, thus impairing further moderator analysis. These findings hold significant implications for the field of brain stimulation and physical performance, as they not only demonstrate a small to moderate effect of acute tDCS but also identify specific categories of individuals, devices and activities that are more susceptible to improvements. By addressing the multidimensional factors influencing the mechanisms of tDCS, we also provide suggestions for future research.
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Affiliation(s)
- Matteo Winker
- University of Cologne, Cologne, Germany
- Institute for Sport and Sport Science, Performance and Health (Sports Medicine), TU Dortmund University, Dortmund, Germany
- Department for Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Sven Hoffmann
- Psychological Methods and Evaluation, Institute of Psychology, University of Hagen, Hagen, Germany
| | - Sylvain Laborde
- Department of Performance Psychology, Institute of Psychology, German Sport University Cologne, Cologne, Germany
| | - Florian Javelle
- NeuroPsychoImmunology research unit, Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
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Ledur ÂC, Fontenele MQS, Bueno MEB, Smaili SM, Zamboti CL. Acute Effect of Transcranial Direct Current Stimulation in Pelvic Floor Muscle Function in Young Healthy Women: Initial Findings of a Randomized Controlled Trial. Int Urogynecol J 2024; 35:1635-1642. [PMID: 38953997 DOI: 10.1007/s00192-024-05846-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/07/2024] [Indexed: 07/04/2024]
Abstract
INTRODUCTION AND HYPOTHESIS Transcranial direct current stimulation (tDCS) can enhance muscle function in healthy individuals. However, it is unknown if tDCS associated with pelvic floor muscle training (PFMT) can improve pelvic floor muscle function (PFMF) in healthy women. The aim of this study was to investigate the acute effect of a single session of tDCS in PFMF compared with sham-tDCS in healthy women. METHODS A double-blind, cross-over, randomized clinical trial was conducted with healthy, nulliparous and sexually active women. PFMF was assessed by bidigital palpation (PERFECT scale) and intravaginal pressure by a manometer (Peritron™). Participants randomly underwent two tDCS sessions (active and sham) 7 days apart. The electrode was positioned equal for both protocols, the anode electrode in the supplementary motor area (M1) and the cathode electrode in the right supraorbital frontal cortex (Fp2). The current was applied for 20 min at 2 mA in active stimulation and for 30 s in sham-tDCS. The tDCS applications were associated with verbal instructions to PFMT in a seated position. After each tDCS session PFMF was reevaluated. RESULTS Twenty young healthy women (aged 23.4 ± 1.7 years; body mass index 21.7 ± 2.2 kg/m2) were included. No difference was observed in power, endurance, and intravaginal pressure of PFMF (p > 0.05). The number of sustained contractions improved from 3.0 (2.0-3.5) to 4.0 (3.0-5.0) after active-tDCS (p = 0.0004) and was superior to sham-tDCS (p = 0.01). CONCLUSION The number of sustained contractions of PFM improved immediately after a single active-tDCS session, with a difference compared with the post-intervention result of sham-tDCS in healthy young women.
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Affiliation(s)
- Ângela C Ledur
- Department of Physiotherapy, State University of Londrina, Robert Koch Avenue 60, Londrina, 86038-350, Brazil
| | - Marta Q S Fontenele
- Department of Physiotherapy, State University of Londrina, Robert Koch Avenue 60, Londrina, 86038-350, Brazil
| | - Maria E B Bueno
- Department of Physiotherapy, State University of Londrina, Robert Koch Avenue 60, Londrina, 86038-350, Brazil
| | - Suhaila M Smaili
- Department of Physiotherapy, State University of Londrina, Robert Koch Avenue 60, Londrina, 86038-350, Brazil
- Neurofunctional Physical Therapy Research Group (GPFIN), Master's and Doctoral degree program in Rehabilitation Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Camile L Zamboti
- Department of Physiotherapy, State University of Londrina, Robert Koch Avenue 60, Londrina, 86038-350, Brazil.
- Department of Physiotherapy in School of Science and Technology, Sao Paulo State University (UNESP), 305 Roberto Símonsen Street, Presidente Prudente, SP, 19060-900, Brazil.
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Uehara L, Coelho DB, Baptista AF, Santana L, Moreira RJD, Zana Y, Malosá L, Lima T, Valentim G, Cardenas-Rojas A, Fregni F, Corrêa JCF, Corrêa FI. Does Transcranial Direct Current Stimulation reduce central and peripheral muscle fatigue in recreational runners? A triple-blind, sham-controlled, randomized, crossover clinical study. Braz J Phys Ther 2024; 28:101088. [PMID: 38936315 PMCID: PMC11260918 DOI: 10.1016/j.bjpt.2024.101088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 05/01/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND Runners seek health benefits and performance improvement. However, fatigue might be considered a limiting factor. Transcranial Direct Current Stimulation (tDCS) has been investigated to improve performance and reduce fatigue in athletes. While some studies showing that tDCS may improve a variety of physical measures, other studies failed to show any benefit. OBJECTIVE To evaluate the acute effects of tDCS on central and peripheral fatigue compared to a sham intervention in recreational runners. METHODS This is a triple-blind, controlled, crossover study of 30 recreational runners who were randomized to receive one of the two interventions, anodal or sham tDCS, after the fatigue protocol. The interventions were applied to the quadriceps muscle hotspot for 20 min. Peak torque, motor-evoked potential, and perceived exertion rate were assessed before and after the interventions, and blood lactate level was assessed before, during, and after the interventions. A generalized estimated equation was used to analyze the peak torque, motor-evoked potential, and blood lactate data, and the Wilcoxon test was used for perceived exertion rate data. RESULTS Our findings showed no difference between anodal tDCS and sham tDCS on peak torque, motor-evoked potential, blood lactate, and perceived exertion rate. CONCLUSION The tDCS protocol was not effective in improving performance and reducing fatigue compared to a sham control intervention. BRAZILIAN CLINICAL TRIALS REGISTRY RBR-8zpnxz.
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Affiliation(s)
- Laura Uehara
- Master's and Doctorate in Rehabilitation Sciences Program, Universidade Nove de Julho, São Paulo, SP, Brazil
| | | | | | - Lucas Santana
- Universidade Federal do ABC (UFABC), São Bernardo do Campo, SP, Brazil
| | | | - Yossi Zana
- Universidade Federal do ABC (UFABC), São Bernardo do Campo, SP, Brazil
| | - Luciana Malosá
- Master's and Doctorate in Rehabilitation Sciences Program, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Taiane Lima
- Master's and Doctorate in Rehabilitation Sciences Program, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Gabriela Valentim
- Master's and Doctorate in Rehabilitation Sciences Program, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Alejandra Cardenas-Rojas
- Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Felipe Fregni
- Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - João Carlos Ferrari Corrêa
- Master's and Doctorate in Rehabilitation Sciences Program, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Fernanda Ishida Corrêa
- Master's and Doctorate in Rehabilitation Sciences Program, Universidade Nove de Julho, São Paulo, SP, Brazil.
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Yu Y, Zhang X, Nitsche MA, Vicario CM, Qi F. Does a single session of transcranial direct current stimulation enhance both physical and psychological performance in national- or international-level athletes? A systematic review. Front Physiol 2024; 15:1365530. [PMID: 38962069 PMCID: PMC11220198 DOI: 10.3389/fphys.2024.1365530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 05/29/2024] [Indexed: 07/05/2024] Open
Abstract
Some studies showed that a single session of transcranial direct current stimulation (tDCS) has the potential of modulating motor performance in healthy and athletes. To our knowledge, previously published systematic reviews have neither comprehensively investigated the effects of tDCS on athletic performance in both physical and psychological parameters nor investigated the effects of tDCS on high-level athletes. We examined all available research testing a single session of tDCS on strength, endurance, sport-specific performance, emotional states and cognitive performance for better application in competition and pre-competition trainings of national- or international-level athletes. A systematic search was conducted in PubMed, Web of Science, EBSCO, Embase, and Scopus up until to June 2023. Studies were eligible when participants had sports experience at a minimum of state and national level competitions, underwent a single session of tDCS without additional interventions, and received either sham tDCS or no interventions in the control groups. A total of 20 experimental studies (224 participants) were included from 18 articles. The results showed that a single tDCS session improved both physical and psychological parameters in 12 out of the 18 studies. Of these, six refer to the application of tDCS on the motor system (motor cortex, premotor cortex, cerebellum), five on dorsolateral prefrontal cortex and two on temporal cortex. The most sensitive to tDCS are strength, endurance, and emotional states, improved in 67%, 75%, and 75% of studies, respectively. Less than half of the studies showed improvement in sport-specific tasks (40%) and cognitive performance (33%). We suggest that tDCS is an effective tool that can be applied to competition and pre-competition training to improve athletic performance in national- or international-level athletes. Further research would explore various parameters (type of sports, brain regions, stimulation protocol, athlete level, and test tasks) and neural mechanistic studies in improving efficacy of tDCS interventions. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022326989, identifier CRD42022326989.
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Affiliation(s)
- Ying Yu
- Key Laboratory of Sport Training of General Administration of Sport of China, Beijing Sport University, Beijing, China
- Sports, Exercise and Brain Sciences Laboratory, Beijing Sport University, Beijing, China
| | - Xinbi Zhang
- Key Laboratory of Sport Training of General Administration of Sport of China, Beijing Sport University, Beijing, China
- Sports, Exercise and Brain Sciences Laboratory, Beijing Sport University, Beijing, China
| | - Michael A. Nitsche
- Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany
- University Clinic of Psychiatry and Psychotherapy and University Clinic of Child and Adolescent Psychiatry and Psychotherapy, Protestant Hospital of Bethel Foundation, University Hospital OWL, Bielefeld University, Bielefeld, Germany
| | - Carmelo M. Vicario
- Department of Cognitive Sciences, Psychology, Education and Cultural Studies, University of Messina, Messina, Italy
| | - Fengxue Qi
- Key Laboratory of Sport Training of General Administration of Sport of China, Beijing Sport University, Beijing, China
- Sports, Exercise and Brain Sciences Laboratory, Beijing Sport University, Beijing, China
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Kenville R, Clauß M, Berkow S, Ragert P, Maudrich T. The impact of cerebellar transcranial direct current stimulation on isometric bench press performance in trained athletes. Heliyon 2024; 10:e29951. [PMID: 38694076 PMCID: PMC11058892 DOI: 10.1016/j.heliyon.2024.e29951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 05/03/2024] Open
Abstract
Athletic development centers on optimizing performance, including technical skills and fundamental motor abilities such as strength and speed. Parameters such as maximum contraction force and rate of force development, influence athletic success, although performance gains become harder to achieve as athletic abilities increase. Non-invasive transcranial direct current stimulation of the cerebellum (CB-tDCS) has been used successfully to increase force production in novices, although the potential effects in athletes remain unexplored. The present study examined the effects of CB-tDCS on maximum isometric voluntary contraction force (MVCiso) and isometric rate of force development (RFDiso) during a bench press task in well-trained athletes. 21 healthy, male, strength-trained athletes participated in a randomized, sham-controlled, double-blinded crossover design. Each participant completed the isometric bench press (iBP) task on two separate days, with at least 5 days between sessions, while receiving either CB-tDCS or sham stimulation. Electromyography (EMG) recordings of three muscles involved in iBP were acquired bilaterally to uncover differences in neuromuscular activation and agonist-antagonist co-contraction between conditions. Contrary to our hypothesis, no significant differences in MVCiso and RFDiso were observed between CB-tDCS and sham conditions. Furthermore, no tDCS-induced differences in neuromuscular activation or agonist-antagonist co-contraction were revealed. Here, we argue that the effects of CB-tDCS on force production appear to depend on the individual's training status. Future research should study individual differences in tDCS responses between athletes and novices, as well as the potential of high-definition tDCS for precise brain region targeting to potentially enhance motor performance in athletic populations.
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Affiliation(s)
- Rouven Kenville
- Department of Movement Neuroscience, Faculty of Sports Science, Leipzig University, Leipzig, 04109, Germany
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, 04103, Germany
| | - Martina Clauß
- Department of Movement Neuroscience, Faculty of Sports Science, Leipzig University, Leipzig, 04109, Germany
| | - Stefan Berkow
- Department of Movement Neuroscience, Faculty of Sports Science, Leipzig University, Leipzig, 04109, Germany
| | - Patrick Ragert
- Department of Movement Neuroscience, Faculty of Sports Science, Leipzig University, Leipzig, 04109, Germany
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, 04103, Germany
| | - Tom Maudrich
- Department of Movement Neuroscience, Faculty of Sports Science, Leipzig University, Leipzig, 04109, Germany
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, 04103, Germany
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Rocha JVDS, de Almeida RF, de Lima Cordeiro BN, Cardoso Sarcinelli CH, Zimerer C, Arêas FZ. Effects of bi-hemispheric anodal transcranial direct current stimulation on soccer player performance: a triple-blinded, controlled, and randomized study. Front Sports Act Living 2024; 6:1350660. [PMID: 38584685 PMCID: PMC10995377 DOI: 10.3389/fspor.2024.1350660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/27/2024] [Indexed: 04/09/2024] Open
Abstract
The search for increased performance and physical performance are linked to the use of ergogenic resources. The vertical jump is one of the measures commonly used to evaluate the performance of lower limbs in athletes. Transcranial direct current stimulation (tDCS) is a non-invasive, safe, economically viable technique that can modulate cortical excitability, which can influence the increase in the performance of athletes in general. This study aimed to investigate whether the use of tDCS on the primary motor cortex (M1) improves the performance of soccer players. A cross-sectional study was conducted. Twenty-seven players were randomized into three groups: Active tDCS group (n = 9), Sham group (n = 9), and control group (n = 9). Stimulation was applied at 2 mA for 15 min using a cephalic mount. Visual Pain Scale (VAS) and Subjective Recovery Scale (SRS) were monitored before and after tDCS. In addition, the participants performed the Countermovement Jump (CMJ) before and after the stimulation intercalated with Heart Rate (HR) and Rating of Perceived Exertion (RPE CR-10). No differences were found in any of the performance variables analyzed (p > 0.05) nor in the responses of HR (p > 0.05), RPE (p > 0.05), VAS (p > 0.05), and SRS (p > 0.05) between groups. The tDCS in M1 did not change the performance of the vertical jump, and there was no improvement in the subjective scales. New studies should also be developed with different stimulus intensities in different cortical areas and sports modalities.
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Affiliation(s)
- Jader Vinicius Da Silva Rocha
- Universidade Federal do Espirito Santo, Vitória, Brazil
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
| | | | - Bárbara Naeme de Lima Cordeiro
- Universidade Federal do Espirito Santo, Vitória, Brazil
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
| | | | - Carla Zimerer
- Universidade Federal do Espirito Santo, Vitória, Brazil
| | - Fernando Zanela Arêas
- Universidade Federal do Espirito Santo, Vitória, Brazil
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitória, Brazil
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Zheng S, Fu T, Yan J, Zhu C, Li L, Qian Z, Lü J, Liu Y. Repetitive temporal interference stimulation improves jump performance but not the postural stability in young healthy males: a randomized controlled trial. J Neuroeng Rehabil 2024; 21:38. [PMID: 38509563 PMCID: PMC10953232 DOI: 10.1186/s12984-024-01336-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Temporal interference (TI) stimulation, an innovative non-invasive brain stimulation technique, has the potential to activate neurons in deep brain regions. The objective of this study was to evaluate the effects of repetitive TI stimulation targeting the lower limb motor control area (i.e., the M1 leg area) on lower limb motor function in healthy individuals, which could provide evidence for further translational application of non-invasive deep brain stimulation. METHODS In this randomized, double-blinded, parallel-controlled trial, 46 healthy male adults were randomly divided into the TI or sham group. The TI group received 2 mA (peak-to-peak) TI stimulation targeting the M1 leg area with a 20 Hz frequency difference (2 kHz and 2.02 kHz). Stimulation parameters of the sham group were consistent with those of the TI group but the current input lasted only 1 min (30 s ramp-up and ramp-down). Both groups received stimulation twice daily for five consecutive days. The vertical jump test (countermovement jump [CMJ], squat jump [SJ], and continuous jump [CJ]) and Y-balance test were performed before and after the total intervention session. Two-way repeated measures ANOVA (group × time) was performed to evaluate the effects of TI stimulation on lower limb motor function. RESULTS Forty participants completed all scheduled study visits. Two-way repeated measures ANOVA showed significant group × time interaction effects for CMJ height (F = 8.858, p = 0.005) and SJ height (F = 6.523, p = 0.015). The interaction effect of the average CJ height of the first 15 s was marginally significant (F = 3.550, p = 0.067). However, there was no significant interaction effect on the Y balance (p > 0.05). Further within-group comparisons showed a significant post-intervention increase in the height of the CMJ (p = 0.004), SJ (p = 0.010) and the average CJ height of the first 15 s (p = 0.004) in the TI group. CONCLUSION Repetitive TI stimulation targeting the lower limb motor control area effectively increased vertical jump height in healthy adult males but had no significant effect on dynamic postural stability.
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Affiliation(s)
- Suwang Zheng
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China
| | - Tianli Fu
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China
| | - Jinlong Yan
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China
| | - Chunyue Zhu
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China
| | - Lu Li
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China
| | - Zhenyu Qian
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China
| | - Jiaojiao Lü
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China.
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China.
| | - Yu Liu
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, 200438, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, China
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10
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Baharlouei H, Goosheh M, Moore M, Ramezani Ahmadi AH, Yassin M, Jaberzadeh S. The effect of transcranial direct current stimulation on rating of perceived exertion: A systematic review of the literature. Psychophysiology 2024; 61:e14520. [PMID: 38217074 DOI: 10.1111/psyp.14520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/14/2024]
Abstract
The rating of perceived exertion (RPE) is a widely used method for monitoring the load during training, as it provides insight into the subjective intensity of effort experienced during exercises. Considering the role of brain in monitoring and perception of the effort, several studies explored the effect of transcranial direct current stimulation (tDCS) on RPE in different populations. The aim of current study is to review the studies that investigated the effect of tDCS on RPE in three groups including healthy untrained people, physically active persons, and athletes. Nine databases were searched for papers assessing the effect of tDCS on RPE. The data from the included studies were extracted and methodological quality was examined using the risk of bias 2 (ROB2) tool. Thirty-three studies met the inclusion criteria. According to the meta-analysis, active a-tDCS significantly decreased the RPE compared to the sham stimulation. The a-tDCS could decrease the RPE when it was applied over M1 or DLPF. Regarding the measurement tool, Borg's scale 6-20 and OMNI scale could show an improvement in RPE scale. A-tDCS is a promising technique that can decrease the RPE. M1 and DLPFC are suggested as the target area of stimulation. From the tools that measure the RPE, Borg's RPE 6-20 and OMNI scale could better show the effect of a-tDCS.
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Affiliation(s)
- Hamzeh Baharlouei
- Musculoskeletal Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Meysam Goosheh
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maha Moore
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Marzieh Yassin
- Iranian Center of Excellence in Physiotherapy, Rehabilitation Research Center, Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Shapour Jaberzadeh
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia
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11
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Sasaki A, Aisawa A, Takeuchi N. Transcranial direct current stimulation facilitates backward walking training. Exp Brain Res 2024; 242:67-77. [PMID: 37955707 DOI: 10.1007/s00221-023-06728-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/23/2023] [Indexed: 11/14/2023]
Abstract
Backward walking training presents a great challenge to the physical and neural systems, which may result in an improvement in gait performance. Transcranial direct current electrical stimulation (tDCS), which can non-invasively enhance cortical activity, has been reported to strengthen corticomotor plasticity. We investigated whether excitatory tDCS over the primary motor cortex (M1) or the dorsolateral prefrontal cortex (DLPFC) enhances the effects of backward walking training in healthy participants. Thirty-six healthy participants (16 men and 20 women, mean age 21.3 ± 1.4 years) participated in this study. The participants were randomly assigned to one of the three tDCS groups (M1, DLPFC, and sham). They performed 5 min of backward walking training during 15 min of tDCS. We evaluated dual-task forward and backward walking performance before and after training. Both tDCS groups increased walking speed in the backward condition, but the DLPFC group increased the dual-task backward walking speed more than the M1 group. The M1 group showed decreased gait variability in dual-task backward walking, whereas the DLPFC group showed increased gait variability. Backward walking training combined with M1 stimulation may increase the backward walking speed by reducing gait variability. Backward walking training combined with DLPFC stimulation may prioritize walking speed over gait stability. Our results indicate that backward walking training combined with tDCS may be extended to other rehabilitation methods to improve gait performance.
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Affiliation(s)
- Ayuka Sasaki
- Department of Physical Therapy, Akita University Graduate School of Health Sciences, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Anri Aisawa
- Department of Physical Therapy, Akita University Graduate School of Health Sciences, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Naoyuki Takeuchi
- Department of Physical Therapy, Akita University Graduate School of Health Sciences, 1-1-1 Hondo, Akita, 010-8543, Japan.
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12
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Machado DGDS, Amiri E. Critical considerations on tDCS-induced changes in corticospinal excitability and exercise performance: should we go beyond M1? J Physiol 2023; 601:5453-5455. [PMID: 37786946 DOI: 10.1113/jp285507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/12/2023] [Indexed: 10/04/2023] Open
Affiliation(s)
- Daniel Gomes da Silva Machado
- Research Group in Neuroscience of Human Movement (NeuroMove), Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Ehsan Amiri
- Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, Kermanshah, Iran
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13
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Amann M, Sidhu SK, McNeil CJ, Gandevia SC. Transcranial direct current stimulation to enhance athletic performance: Are we there yet? Will we ever get there? J Physiol 2023; 601:5457-5458. [PMID: 37929747 DOI: 10.1113/jp285691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023] Open
Affiliation(s)
- Markus Amann
- Department of Anesthesiology, University of Utah, Salt Lake City, UT, USA
| | - Simranjit K Sidhu
- School of Biomedicine, University of Adelaide, South Australia, Australia
| | - Chris J McNeil
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - Simon C Gandevia
- Neuroscience Research Australia and University of New South Wales, Sydney, Australia
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14
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Perrey S. The potential of fNIRS, EEG, and transcranial current stimulation to probe neural mechanisms of resistance training. Front Hum Neurosci 2023; 17:1295993. [PMID: 38098763 PMCID: PMC10720034 DOI: 10.3389/fnhum.2023.1295993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/16/2023] [Indexed: 12/17/2023] Open
Affiliation(s)
- Stéphane Perrey
- EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Ales, Montpellier, France
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15
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Maudrich T, Ragert P, Perrey S, Kenville R. Letter to the Editor: Response regarding "Single-session anodal transcranial direct current stimulation to enhance sport-specific performance in athletes: A systematic review and meta-analysis". Brain Stimul 2023; 16:1551-1552. [PMID: 37909111 DOI: 10.1016/j.brs.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 11/02/2023] Open
Affiliation(s)
- Tom Maudrich
- Department of Movement Neuroscience, Faculty of Sport Science, Leipzig University, Leipzig, Germany; Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
| | - Patrick Ragert
- Department of Movement Neuroscience, Faculty of Sport Science, Leipzig University, Leipzig, Germany; Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Stéphane Perrey
- EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Ales, Montpellier, France
| | - Rouven Kenville
- Department of Movement Neuroscience, Faculty of Sport Science, Leipzig University, Leipzig, Germany; Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
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Machado DGDS, Amiri E. Letter to the editor regarding "Single-session anodal transcranial direct current stimulation to enhance sport-specific performance in athletes: A systematic review and meta-analysis". Brain Stimul 2023; 16:1549-1550. [PMID: 37909110 DOI: 10.1016/j.brs.2023.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/12/2023] [Indexed: 11/02/2023] Open
Affiliation(s)
- Daniel Gomes da Silva Machado
- Research Group in Neuroscience of Human Movement (NeuroMove), Department of Physical Education, Federal University of Rio Grande Do Norte, Natal, RN, Brazil.
| | - Ehsan Amiri
- Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, Kermanshah, Iran
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Perrey S. Probing the Promises of Noninvasive Transcranial Electrical Stimulation for Boosting Mental Performance in Sports. Brain Sci 2023; 13:brainsci13020282. [PMID: 36831825 PMCID: PMC9954379 DOI: 10.3390/brainsci13020282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
While the importance of physical abilities is noncontested to perform in elite sport, more focus has recently been turned toward cognitive processes involved in sport performance. Practicing any sport requires a high demand of cognitive functioning including, but not limited to, decision-making, processing speed, working memory, perceptual processing, motor functioning, and attention. Noninvasive transcranial electrical stimulation (tES) has recently attracted considerable scientific interest due to its ability to modulate brain functioning. Neuromodulation apparently improves cognitive functions engaged in sports performance. This opinion manuscript aimed to reveal that tES is likely an adjunct ergogenic resource for improving cognitive processes, counteracting mental fatigue, and managing anxiety in elite athletes. Nevertheless, the first evidence is insufficient to guarantee its real effectiveness and benefits. All tES techniques could be add-ons to make performance-related cognitive functions more efficient and obtain better results. Modulating inhibitory control through tES over the frontal cortex might largely contribute to the improvement of mental performance. Nevertheless, studies in elite athletes are required to assess the long-term effects of tES application as an ergogenic aid in conjunction with other training methods (e.g., neurofeedback, mental imagery) where cognitive abilities are trainable.
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Affiliation(s)
- Stephane Perrey
- EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Ales, 34090 Montpellier, France
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18
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Perrey S, Flanagan SD. Editorial: Understanding the effects of transcranial current stimulation on the locomotor and musculoskeletal systems. Front Hum Neurosci 2023; 17:1189405. [PMID: 37113320 PMCID: PMC10126502 DOI: 10.3389/fnhum.2023.1189405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 03/28/2023] [Indexed: 04/29/2023] Open
Affiliation(s)
- Stephane Perrey
- EuroMov Digital Health in Motion, University of Montpellier, IMT Mines Ales, Montpellier, France
- *Correspondence: Stephane Perrey
| | - Shawn D. Flanagan
- Neuromuscular Research Laboratory, University of Pittsburgh, Pittsburgh, PA, United States
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