ORCID Profile
0000-0002-1819-6895
Current Organisation
Federation University
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Publisher: Mary Ann Liebert Inc
Date: 11-2021
Publisher: SAGE Publications
Date: 12-05-2020
Abstract: To compare the effects of anodal trans-cranial direct current stimulation (a-tDCS) over primary motor and dorsolateral prefrontal cortices on Fatigue Severity Scale and its lasting effect on fatigue reduction and improvement in quality of life in patients with multiple sclerosis. A randomized, double-blinded, sham-controlled parallel clinical trial study. Neurological physiotherapy clinics. Thirty-nine participants were randomly assigned to three groups: dorsolateral prefrontal cortex a-tDCS, primary motor a-tDCS (experimental groups) and sham a-tDCS. Finally, 36 participants completed the whole study ( n = 12 in each group). Participants in the experimental groups received six-session a-tDCS (1.5 mA, 20 minutes) during two weeks (three sessions per week). The sham group received six sessions of 20-minute sham stimulation. The Fatigue Severity Scale and quality of life were assessed before, immediately and four weeks after the intervention. Findings indicated a significant reduction in the Fatigue Severity Scale and a significant increase in the quality of life in both experimental groups, immediately after the intervention ( P 0.001), while Fatigue Severity Scale and quality of life changes were not significant in the sham a-tDCS group ( P 0.05). In addition, improvement of the variables remained four weeks after the intervention in dorsolateral prefrontal cortex a-tDCS (mean differences (95% confidence interval): 0.03 (−0.63 to 0.68) as compared to primary motor (−0.62 (−0.11 to −1.14) and sham a-tDCS groups (−0.47 (−1.37 to 0.43)). Both primary motor and dorsolateral prefrontal cortex a-tDCS as compared to sham intervention can immediately improve fatigue and quality of life. However, the effects last up to four weeks only by the dorsolateral prefrontal cortex a-tDCS.
Publisher: Cold Spring Harbor Laboratory
Date: 31-03-2020
DOI: 10.1101/2020.03.30.017046
Abstract: Response variability following transcranial direct current stimulation (tDCS) highlights need for exploring different tDCS electrode montages. This study compared corticospinal excitability (CSE), cortico-cortical excitability and intra-in idual variability following conventional and HD anodal (a-tDCS) and cathodal (c-tDCS) tDCS. Fifteen healthy young males attended four sessions at least one-week apart: conventional a-tDCS, conventional c-tDCS, HD-a-tDCS, HD-c-tDCS. TDCS was administered (1mA, 10-minutes) over the primary motor cortex (M1), via 6×4cm active and 7×5cm return electrodes (conventional tDCS) and 4×1 ring-electrodes 3.5cm apart in ring formation around M1 (HD-tDCS). For CSE, twenty-five single-pulse transcranial magnetic stimulation (TMS) peak-to-peak motor evoked potentials (MEP) were recorded at baseline, 0-minutes and 30-minutes post-tDCS. For cortico-cortical excitability, twenty-five paired-pulse MEPs with 3-millisecond (ms) inter-pulse interval (IPI) and twenty-five at 10ms assessed short-interval intracortical inhibition (SICI) and intracortical facilitation (ICF) respectively. MEP standardised z-values standard deviations represented intra-in idual variability. No significant differences were reported in CSE between conventional and HD a-tDCS, but significant differences between conventional and HD c-tDCS 0-minutes post-tDCS. Intra-in idual variability was significantly reduced in conventional tDCS compared to HD-tDCS for a-tDCS (0-minutes) and c-tDCS (30-minutes). No significant changes were reported in SICI and ICF. These novel findings highlight current technical issues with HD-tDCS, suggesting future tDCS studies should utilise conventional tDCS to minimise intra-in idual variability, ensuring tDCS after-effects are true changes in CSE and cortico-cortical excitability.
Publisher: Wiley
Date: 03-11-2020
DOI: 10.1111/EJN.15002
Abstract: Genetic mediation of cortical plasticity and the role genetic variants play in previously observed response variability to transcranial direct current stimulation (tDCS) have become important issues in the tDCS literature in recent years. This study investigated whether inter‐in idual variability to tDCS was in‐part genetically mediated. In 61 healthy males, anodal‐tDCS (a‐tDCS) and sham‐tDCS were administered to the primary motor cortex at 1 mA for 10‐min via 6 × 4 cm active and 7 × 5 cm return electrodes. Twenty‐five single‐pulse transcranial magnetic stimulation (TMS) motor evoked potentials (MEP) were recorded to represent corticospinal excitability (CSE). Twenty‐five paired‐pulse MEPs were recorded with 3 ms inter‐stimulus interval (ISI) to assess intracortical inhibition (ICI) via short‐interval intracranial inhibition (SICI) and 10 ms ISI for intracortical facilitation (ICF). Saliva s les were tested for specific genetic polymorphisms in genes encoding for excitatory and inhibitory neuroreceptors. In iduals were sub‐grouped based on a pre‐determined threshold and via statistical cluster analysis. Two distinct subgroups were identified, increases in CSE following a‐tDCS (i.e. Responders) and no increase or even reductions in CSE (i.e. Non‐responders). No changes in ICI or ICF were reported. No relationships were reported between genetic polymorphisms in excitatory receptor genes and a‐tDCS responders. An association was reported between a‐tDCS responders and GABRA3 gene polymorphisms encoding for GABA‐A receptors suggesting potential relationships between GABA‐A receptor variations and capacity to undergo tDCS‐induced cortical plasticity. In the largest tDCS study of its kind, this study presents an important step forward in determining the contribution genetic factors play in previously observed inter‐in idual variability to tDCS.
Publisher: Japanese Physical Therapy Association
Date: 20-12-2021
DOI: 10.1298/PTR.E10081
Publisher: Elsevier BV
Date: 02-2020
DOI: 10.1016/J.JOCN.2019.12.022
Abstract: Application of unilateral tDCS (Uni-tDCS) vs. bilateral tDCS (Bi-tDCS) is another important factor that can affect the physiological results of tDCS intervention on motor learning and motor performance. According to the evidence, some studies indicated that motor performance or motor learning are facilitated in healthy in iduals by application of the Bi-tDCS more than the Uni-tDCS. On the other hand, some studies showed that there was no significant differences between Uni-tDCS and Bi-tDCS and both techniques were more effective than sham stimulation. In contrast, the other studies have shown more significant effectiveness of Uni-tDCS than Bi-tDCS on motor performance and motor learning. The aim of this study was to systematically review the studies which investigated the effectiveness of Uni-tDCS and Bi-tDCS intervention on the motor learning and motor performance. The search was performed from databases in the Google Scholar, PubMed, Elsevier, Medline, Ovid and Science Direct with the keywords of motor behavior, motor performance, motor learning, Bi-tDCS or bilateral tDCS, dual tDCS, Uni-tDCS or unilateral tDCS, anodal tDCS and cathodal tDCS from 2000 to 2019. The results indicated that the study population was a key factor in determining study's findings. Data meta-analysis showed that Uni-tDCS was more effective than Bi-tDCS in patients with stroke, while, Bi-tDCS was more effective than Uni-tDCS to improve motor learning and motor performance in healthy in iduals.
Publisher: Elsevier BV
Date: 10-2019
DOI: 10.1016/J.JOCN.2019.07.017
Abstract: Changes in different regions of the brain due to postural disturbances were found in patients with chronic low back pain (LBP). The aims of the current study were to investigate the short- and long-term enhancing effects of concurrent postural training and primary motor cortex (M1) anodal transcranial direct current stimulation (a-tDCS) on balance, postural stability and pain in chronic LBP patients with postural impairment. In this clinical trial study, thirty eight patients with chronic LBP were randomly assigned to a-tDCS and training, sham a-tDCS and training,and training only groups. All groups received identical postural training for 20 min, three sessions per week for two weeks. The length of stimulation, which used concurrent with postural training in the active a-tDCS group was also 20 min. Before, immediately and one-month after the interventions, postural stability, balance and pain were assessed using Biodex Balance System, Berg Balance Scale (BBS) and Visual Analog Scale (VAS), respectively. The postural stability indices, BBS and VAS scores significantly improved immediately and one-month after the intervention in the a-tDCS and training group (P < 0.001), while there were significant differences between active a-tDCS and other two groups (P 0.05). M1 a-tDCS significantly improves the effects of postural training on postural stability, balance and pain in patients with chronic LBP. Two-week postural training alone cannot improve postural impairment in patients with chronic LBP.
Publisher: Frontiers Media SA
Date: 24-08-2020
Publisher: Springer Science and Business Media LLC
Date: 04-11-2020
Publisher: Springer Science and Business Media LLC
Date: 27-03-2020
Publisher: Mary Ann Liebert Inc
Date: 24-04-0024
Publisher: Wiley
Date: 17-10-2016
DOI: 10.1002/EPI4.12020
Publisher: Elsevier BV
Date: 09-2021
Publisher: Hindawi Limited
Date: 31-03-2023
DOI: 10.1155/2023/9680371
Abstract: Introduction. The risk of falling and its subsequent injuries increases with aging. Impaired balance and gait are important contributing factors to the increased risk of falling. A wide range of methods was examined to improve balance, but these interventions might produce small effects or be inapplicable for this population. The current study aimed at investigating the effect of motor imaginary (MI) training combined with transcranial direct current stimulation (tDCS) over the cerebellum on balance in middle-aged women with high fall risk. Methods. Thirty subjects aged 40-65 years old were ided into two groups including intervention ( n = 15 ) and sham control ( n = 15 ). The participants completed a 4-week program 3 times per week. The intervention group performed MI training combined with tDCS over the cerebellum, and the control group performed MI training combined with sham tDCS over the cerebellum. Static and dynamic balance were measured at baseline and after completing the 4-week program using balance error scoring system (BESS) and Y balance testing, respectively. Result. A one-way analysis of covariance and paired t -tests were used to analyze the data. Significant improvement was observed in both balance tests in the intervention group after the implementation of the 4-week intervention program compared to the control group. The within-group analysis showed that both static and dynamic balance improved significantly from the baseline values only in the intervention group ( p 0.05 ) and not in the control group ( p 0.05 ). Conclusion. The results of the study indicate that MI training combined with tDCS over the cerebellum can lead to balance improvement in middle-aged women with high fall risk.
Publisher: Springer Science and Business Media LLC
Date: 30-09-2020
DOI: 10.1038/S41598-020-72909-4
Abstract: Transcranial direct current stimulation is applied to modulate activity, and excitability of the brain. Basically, LTP-like plasticity is induced when anodal tDCS (a-tDCS) is applied over the primary motor cortex. However, it has been shown that specific parameters of a-tDCS can induce a plasticity reversal. We aimed to systematically assess the intensity threshold for reversal of the direction of plasticity induced by a-tDCS, monitored by corticospinal excitability (CSE), and explored mechanisms regulating this reversal. Fifteen healthy participants received a-tDCS in pseudo-random order for 26 min with four intensities of 0.3, 0.7, 1, and 1.5 mA. To measure CSE changes, single-pulse TMS was applied over the left M1, and motor evoked potentials of a contralateral hand muscle were recorded prior to a-tDCS, immediately and 30-min post-intervention. Paired-pulse TMS was used to evaluate intracortical excitation and inhibition. CSE increased significantly following a-tDCS with an intensity of 0.7 mA however, the expected effect decreased and even reversed at intensities of 1 and 1.5 mA. ICF was significantly increased while SICI and LICI decreased at 0.7 mA. On the other hand, a significant decrease of ICF, but SICI and LICI enhancement was observed at intensities of 1, and 1.5 mA. The present findings show an intensity threshold of ≥ 1 mA for 26 min a-tDCS to reverse LTP- into LTD-like plasticity. It is suggested that increasing stimulation intensity, with constant stimulation duration, activates counter-regulatory mechanisms to prevent excessive brain excitation. Therefore, stimulation intensity and plasticity induced by a-tDCS might non-linearly correlate in scenarios with prolonged stimulation duration.
Publisher: Wiley
Date: 05-08-2020
DOI: 10.1111/EJN.14916
Publisher: Optica Publishing Group
Date: 11-06-2009
DOI: 10.1364/AO.48.003460
Abstract: Some fluctuations in the output power of a copper vapor laser with a 16 mm bore were recorded by varying the excitation frequency from 13 to 33 kHz. The effect arises from the laser tube, which performs both as an optical and an acoustic resonator at the acoustic resonant frequencies. It is shown that a similar effect occurs in other metal vapor and copper halide lasers as well.
Publisher: Mary Ann Liebert Inc
Date: 02-2020
Publisher: Research Square Platform LLC
Date: 29-06-2022
DOI: 10.21203/RS.3.RS-1778754/V1
Abstract: Background Anodal transcranial direct current stimulation (a-tDCS) applied to the primary motor cortex (M1), or cerebellum (CB) can enhance the postural balance in healthy young adults. Objective In a randomized double-blinded crossover, the sham-controlled study design was utilized to explore the effects of concurrent bilateral anodal tDCS of M1 and CB (concurrent bilateral a-tDCS M1+CB ) on the balance indices. Methods Twenty-one healthy adults participated in this study. Each participant received a-tDCS of 2 mA 20 minutes in four pseudo-randomized, counterbalanced sessions, separated by at least seven days (7.11 days ± 0.65). These sessions were bilateral M1 stimulation (bilateral a-tDCS M1 ), bilateral cerebellar stimulation (bilateral a-tDCS CB ), concurrent bilateral a-tDCS M1+CB , and sham stimulation (bilateral a-tDCS Sham ). Postural balance was evaluated by different tests, including four conditions of the unilateral stance test (US), four conditions of the modified Clinical Test of Sensory Interaction on Balance (mCTSIB), and reaction time (RT), movement velocity (MVL) and directional control (DCL) in limits of stability test (LOS), were recorded before and immediately after the intervention to measure balance changes. Results Concurrent bilateral a-tDCS M1+CB significantly improved RT, MVL, DCL, US and mCTSIB (p ˂0.05). Also, bilateral a-tDCS M1 significantly improved the RT, MVL, and DCL (p ˂0.05). However, no significant changes were found after bilateral a-tDCS CB . Interestingly, concurrent bilateral a-tDCS M1+CB showed shorter RT compared to bilateral a-tDCS M1 (p = 0.015) and bilateral a-tDCS CB (p = 0.06). Conclusions These results confirm that the concurrent bilateral a-tDCS M1+CB significantly improves the balance in young, healthy adults and has better effects than the bilateral a-tDCS M1 .
Publisher: Cold Spring Harbor Laboratory
Date: 23-11-2021
DOI: 10.1101/2021.11.23.469768
Abstract: Our ability to interact flexibly with the surrounding environment and achieve an adaptive goal-directed response is one of the necessities of balance control. This study aimed to examine the interaction between cognitive demand and the necessity for keeping balance in unstable conditions. We examined the effects of performing two cognitive tasks, namely the Stroop test and Wisconsin Card Sorting Test (WCST), on postural balance in healthy young adults. Stroop and the WCST test assess selective attention and cognitive flexibility in shifting between rules, respectively. Thirty-two healthy adults were included in two experimental conditions (control and treatment) in random order, separated by at least seven days. Standing balance was evaluated by the Sway Medical Mobile application in eyes open (EO) and eyes closed (EC) in different stance positions: feet apart, feet together, semi-tandem, tandem, and single-leg stance (SLS). Balance was evaluated before and after the cognitive test in each experimental condition. Our findings indicate that performing cognitively demanding tasks adversely affected the balance ability in more demanding balance tests such as the SLS with EC (P □ 0.05). However, no significant changes were seen in other balance tests (P □ 0.05). Additionally, no significant changes were seen in balance ability after the Stroop or Wisconsin card sorting test alone. These results confirm that performing cognitively demanding tasks significantly reduced the ability to keep balance in less stable conditions. These findings have significant implications in understanding and preventing falls and incidents resulting from an impaired balance in complex and cognitively demanding conditions.
Publisher: Springer Science and Business Media LLC
Date: 19-08-2022
DOI: 10.1007/S00429-022-02533-7
Abstract: Transcranial direct current stimulation (tDCS) applied to the primary motor cortex (M1), and cerebellum (CB) can change the level of M1 corticospinal excitability (CSE). A randomized double-blinded crossover, the sham-controlled study design was used to investigate the effects of concurrent bilateral anodal tDCS of M1 and CB (concurrent bilateral a-tDCS M1+CB ) on the CSE. Twenty-one healthy participants were recruited in this study. Each participant received anodal-tDCS (a-tDCS) of 2 mA, 20 min in four pseudo-randomized, counterbalanced sessions, separated by at least 7 days (7.11 days ± 0.65). These sessions were bilateral M1 stimulation (bilateral a-tDCS M1 ), bilateral cerebellar stimulation (bilateral a-tDCS CB ), concurrent bilateral a-tDCS M1+CB , and sham stimulation (bilateral a-tDCS Sham ). Transcranial magnetic stimulation (TMS) was delivered over the left M1, and motor evoked potentials (MEPs) of a contralateral hand muscle were recorded before and immediately after the intervention to measure CSE changes. Short-interval intracortical inhibition (SICI), intracortical facilitation (ICF), and long interval intracortical inhibition (LICI) were assessed with paired-pulse TMS protocols. Anodal-tDCS significantly increased CSE after concurrent bilateral a-tDCS M1+CB and bilateral a-tDCS CB . Interestingly, CSE was decreased after bilateral a-tDCS M1 . Respective alterations in SICI, LICI, and ICF were seen, including increased SICI and decreased ICF, which indicate the involvement of glutamatergic and GABAergic systems in these effects. These results confirm that the concurrent bilateral a-tDCS M1+CB have a facilitatory effect on CSE, whereas bilateral a-tDCS M1 exert some inhibitory effects. Moreover, the effects of the 2 mA, 20 min a-tDCS on the CB were consistent with its effects on the M1.
Publisher: Frontiers Media SA
Date: 25-08-2022
Publisher: Mary Ann Liebert Inc
Date: 03-2020
Publisher: Cold Spring Harbor Laboratory
Date: 04-2020
DOI: 10.1101/2020.03.31.017798
Abstract: Genetic mediation of cortical plasticity and the role genetic variants play in previously observed response variability to transcranial direct current stimulation (tDCS) have become important issues in the tDCS literature in recent years. This study investigated whether inter-in idual variability to tDCS was in-part genetically mediated. In sixty-one healthy males, anodal-tDCS (a-tDCS) and sham-tDCS were administered to the primary motor cortex at 1mA for 10-minutes via 6×4cm active and 7×5cm return electrodes. Twenty-five single-pulse transcranial magnetic stimulation (TMS) motor evoked potentials (MEP) were recorded to represent corticospinal excitability (CSE). Twenty-five paired-pulse MEPs were recorded with 3ms inter-stimulus interval (ISI) to assess intracortical inhibition (ICI) via short-interval intracranial inhibition (SICI) and 10ms ISI for intracortical facilitation (ICF). Saliva s les tested for specific genetic polymorphisms in genes encoding for excitatory and inhibitory neuroreceptors. In iduals were sub-grouped based on a pre-determined threshold and via statistical cluster analysis. Two distinct subgroups were identified, increases in CSE following a-tDCS (i.e. Responders) and no increase or even reductions in CSE (i.e. Non-responders). No changes in ICI or ICF were reported. No relationships were reported between genetic polymorphisms in excitatory receptor genes and a-tDCS responders. An association was reported between a-tDCS responders and GABRA3 gene polymorphisms encoding for GABA-A receptors suggesting potential relationships between GABA-A receptor variations and capacity to undergo tDCS-induced cortical plasticity. In the largest tDCS study of its kind, this study presents an important step forward in determining the contribution genetic factors play in previously observed inter-in idual variability to tDCS.
Publisher: Mary Ann Liebert Inc
Date: 12-2019
Abstract: High rates of variability in the litude of transcranial magnetic stimulation (TMS)-induced motor evoked potentials (MEPs), a popular method for assessing corticospinal excitability (CSE), make it essential to examine inherent reliability of the MEP litude. We aimed to investigate the effects of different intertrial intervals (ITIs) of single-pulse TMS on the litude, variability, and test-retest reliability of MEPs. Twenty-five TMS single pulses were recorded at four different ITIs of 5, 10, 15, and 20 sec from 15 healthy participants who attended two experimental sessions. Repeated measures analysis of variance (rmANOVA) and standardized
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 10-01-2019
Publisher: Elsevier BV
Date: 05-2018
DOI: 10.1016/J.NEULET.2018.03.026
Abstract: Transcranial magnetic stimulation (TMS)-induced motor evoked potentials (MEPs) are frequently used to assess corticospinal and intercortical activities. Trial to trial variance of the potentials is commonly observed, and averages of multiple MEPs are usually reported. Multiple trials have resources implications and are not compatible with some experimental protocols. This study investigated the minimum number of MEPs required to reliably assess corticospinal excitability (CSE), short interval intracortical inhibition (SICI) and intercortical facilitation (ICF), within and between sessions. Fifteen healthy volunteers received 35 single-pulse TMS for CSE assessments and 35 paired-pulse TMS for SICI and ICF measurements. Intra- and intersession reliability were examined using intra-class correlation coefficient tests, and stability of the measures was assessed using a general equation estimation analysis. Coefficients of variation were used to probe the effects of inter-in idual variability on reliability results. All analyses were carried out on cumulative averages. The optimal number of trials to ensure "excellent" intra and inter-session reliability with low inter-in idual variability and the highest level of stability was found to be 20 for CSE and 26 for SICI assessments. Although 30 consecutive trials produced highly reliable ICF measures within a session, inter-session reliability was not significant across 35 trials. These findings have significant implications for improving time efficiency of TMS experiments without compromising intra- or intersession reliability.
Publisher: Oxford University Press (OUP)
Date: 28-06-2020
DOI: 10.1093/PM/PNAA128
Abstract: Chronic neuropathic pain is a common symptom in multiple sclerosis (MS). This randomized controlled single-blinded study investigated whether a new protocol involving five days of transcranial direct current stimulation (tDCS) with an interval period would be effective to reduce pain using the visual analog scale (VAS). Other secondary outcomes included the Neuropathic Pain Scale (NPS), Depression Anxiety Stress Score (DASS), Short Form McGill Pain Questionnaire (SFMPQ), and Multiple Sclerosis Quality of Life 54 (MSQOL54). A total of 30 participants were recruited for the study, with 15 participants randomized to a sham group or and 15 randomized to an active group. After a five-day course of a-tDCS, VAS and NPS scores were measured daily and then weekly after treatment up to four weeks after treatment. Secondary outcomes were measured pretreatment and then weekly up to four weeks. After a five-day course of a-tDCS, VAS scores were significantly reduced compared with sham tDCS and remained significantly low up to week 2 post-treatment. There were no statistically significant mean changes in MSQOL54, SFMPQ, NPS, or DASS for the sham or treatment group before treatment or at four-week follow-up. This study shows that repeated stimulation with a-tDCS for five days can reduce pain intensity for a prolonged period in patients with MS who have chronic neuropathic pain.
Publisher: Elsevier BV
Date: 05-2020
Publisher: Springer Science and Business Media LLC
Date: 05-03-2018
Publisher: Cold Spring Harbor Laboratory
Date: 15-06-2020
DOI: 10.1101/2020.06.13.150342
Abstract: High variability between in iduals (i.e. inter-in idual variability) in response to transcranial direct current stimulation (tDCS) has become a commonly reported issue in the tDCS literature in recent years. Inherent genetic differences between in iduals has been proposed as a contributing factor to observed response variability. This study investigated whether tDCS inter-in idual variability was genetically mediated. A large s le-size of sixty-one healthy males received cathodal-tDCS (c-tDCS) and sham-tDCS, of the primary motor cortex at 1mA and 10-minutes via 6×4cm active and 7×5cm return electrodes. Corticospinal excitability (CSE) was assessed via twenty-five single-pulse transcranial magnetic stimulation motor evoked potentials (MEP). Intracortical inhibition (ICI) was assessed via twenty-five 3ms inter-stimulus interval (ISI) paired-pulse MEPs, known as short-interval intracortical inhibition (SICI). Intracortical facilitation (ICF) was assessed via twenty-five 10ms ISI paired-pulse MEPs. Gene variants encoding for excitatory and inhibitory neuroreceptors were determined via saliva s les. Pre-determined thresholds and statistical cluster analyses were used to subgroup in iduals. Two distinct subgroups were identified, ‘responders’ reducing CSE following c-tDCS and ‘non-responders’ showing no reduction or even increase in CSE. Differences in CSE between responders and non-responders following c-tDCS were not explained by changes in SICI or ICF. No significant relationships were reported between gene variants and inter-in idual variability to c-tDCS suggesting the chosen gene variants did not influence the activity of the neuroreceptors involved in eliciting changes in CSE in responders following c-tDCS. In this largest c-tDCS study of its kind, novel insights were reported into the contribution genetic factors may play in observed inter-in idual variability to c-tDCS.
Publisher: CASRP: Center of Advanced Scientific Research and Publications
Date: 2017
Publisher: Informa UK Limited
Date: 25-08-2021
DOI: 10.1080/00222895.2021.1962238
Abstract: The issue of using transcranial direct current stimulation (tDCS) to improve sport performance has recently been a topic of interest for researchers. The purpose of this study was to examine the effect of tDCS over left dorsolateral prefrontal cortex (DLPFC) on mental fatigue and physical performance in professional swimmers. Fifteen professional swimmers were randomly assigned in a single-blinded, randomized, counterbalanced order to sham, anodal and cathodal stimulation conditions. Mental fatigue was induced by using a 60-min modified Stroop color-word task. Subjective ratings of mental fatigue were measured before and after the stroop task. The results showed that only anodal tDCS of the left DLPFC reduces adverse effects of mental fatigue in 50-meter swimming performance, whereas cathodal stimulation had no significant effect.
Publisher: Mary Ann Liebert Inc
Date: 11-2020
Start Date: 2013
End Date: 2017
Funder: National Health and Medical Research Council
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