Functional whole-brain mechanisms underlying effects of tDCS on athletic performance of male rowing athletes revealed by resting-state fMRI

Ma, Mengmeng; Xu, Yan; Xiang, Ziliang; Yang, Xi; Guo, Jihua; Zhao, Yi; Hou, Zhenghua; Feng, Yuping; Chen, Jianhuai; Yuan, Yonggui

doi:10.3389/fpsyg.2022.1002548

Cited by 3 publications

(5 citation statements)

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“…They established that simultaneous tDCS-induced excitations over the M1 might improve the male rower's overall performance through the right precentral gyrus, left paracentral lobule, and left inferior frontal gyrus. Those areas initiate voluntary movement, while the inferior frontal gyrus is a crucial area of the cognitive–motor network, vital for planning motor actions ( 26 ). The authors should have stated where the cathode electrode was placed and shared the quadriceps and latissimus dorsi performance using the isokinetic dynamometer.…”

Section: Discussionmentioning

confidence: 99%

“…This volitional action helped them achieve optimal performance results, in contrast to the present study, where the motivation came from the researchers. Ma et al (26) aimed to reach two objectives: first, to investigate the central mechanisms of tDCS in improving the male rower's performance; and second, to examine whether the improvements were related to the changes in the brain and topological activity characteristics of the functional brain network using resting-state functional MRI (rs-fMRI). They performed separate stimulations per group (1 or 2 mA) targeting LM1 (20 min, five times weekly for 2 weeks).…”

Section: Discussionmentioning

confidence: 99%

“…The group found improvements in time and power performance during the 5,000 m test over 3 days. Ma et al ( 26 ) conducted the first study to explore the central mechanisms of tDCS in improving the performance of male rowers from the perspective of regional brain activity and whole-brain functional networks. For this, the authors stimulated the LM1 with tDCS for 20 min, five times per week for 2 weeks during regular training sessions.…”

Section: Introductionmentioning

confidence: 99%

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Acute anodal transcranial direct current stimulation improves the performance of professional rowers

Ramos,

Almeida

et al. 2024

Front. Sports Act. Living

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IntroductionThe aim of the present study was to evaluate the influence of acute transcranial direct current stimulation (tDCS) on physical and subjective responses in professional rowing during the 2,000-m time trial test.MethodsSeven rowers (age 20.86 ± 4.49 years; weight 71.66 ± 7.97 kg) participated in this randomized triple-blind trial with a crossover experimental design. The protocol consists of 2 days with different conditions (anodal and sham). The tDCS anodic stimulation conducted was 2 mA for 20 min in the left temporal cortex (2.5 cm from the F7 zone and 2.5 cm from the T3 zone), targeting the left insular cortex. In the sham moment, the participants experienced 30 s of stimulation. Afterward, they performed a standardized progressive warm-up for 15 min, following the Brazilian Rowing Confederation's assessment protocols, and rested for 3 min before the test started. All procedures were made on an indoor rowing machine, which allowed the capture of performance variables such as time performed, power in watts (W), pace (m/min), and stroke rate (strokes/min). The ratings of perceived exertion [Borg scale (CR-20)] were recorded in each 2-min during the test.ResultsThe results presented differences in power [Z: −2.371; p = 0.018; effect size (ES) = −0.896 (large)] and pace [Z: −2.371; p = 0.018; ES = −0.896 (large)] and time performance [Z: −1.612; p = 0.107; ES = −0.609 (large)] throughout the protocol for the anodal moment.DiscussionHowever, no differences for the other variables were found. According to the results, the current tDCS with the present protocol improved the physical performance at the 2,000-m time trial Test providing ergogenic aid.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Acute anodal transcranial direct current stimulation improves the performance of professional rowers

Ramos,

Almeida

et al. 2024

Front. Sports Act. Living

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“…The authors concluded that the tDCS effects might be due to altered recruitment/discharge rate of the motor unit or cortical excitability. In addition, Ma et al [34] investigated the effects of tDCS on rowing athlete strength and resting-state brain function. tDCS increased knee isokinetic muscle strength, increased the amplitude of low-frequency fluctuation values in the right precentral gyrus, and increased regional homogeneity values in the left paracentral lobule.…”

Section: Effects Of Tdcs On Lower Limb Energymentioning

confidence: 99%

Effects of Bilateral Extracephalic Transcranial Direct Current Stimulation on Lower Limb Kinetics in Countermovement Jumps

Zhu

Wang

Tang

et al. 2023

IJERPH

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Objective: Transcranial direct current stimulation (tDCS) is an effective method for improving sports/exercise performance in humans. However, studies examining the effects of tDCS on jumping performance have reported inconsistent findings, and there is a paucity of studies investigating the effects of tDCS on lower limb energy and kinetics in countermovement jumps (CMJs). Thus, we investigated the effects of tDCS on countermovement jump (CMJ) performance and analysed kinetic variations in the ankle, knee, and hip joints. Methods: In total, 15 healthy young participants randomly received anodal or sham bilateral stimulation of the primary motor cortex (M1). The bilateral tDCS (Bi-tDCS) montage used an intensity of 2 mA for a 20 min monophasic continuous current. Jump height, energy, and lower limb kinetic data in CMJs were collected at pre-stimulation (Pre), post-0 min (Post-0), and post-30 min (Post-30) using a motion capture system and two 3D force plates. Jump height, lower extremity energy, and kinetic variables in CMJs were analysed with two-way repeated-measures ANOVA. Results: (1) Compared to the baseline and sham conditions, the jump height increased except that at Post-30 relative to the sham condition, and the total net energy of lower limbs increased at Post-30 relative to the baseline. (2) Compared to the baseline, the ankle positive energy and net energy decreased in the sham condition; Compared to the baseline and values at Post-0, the maximum ankle torque at Post-30 decreased in both stimulation conditions. (3) The maximum knee power increased compared to the baseline and sham conditions. (4) Regardless of time points, the maximum hip torque in the tDCS condition was higher than it was in the sham condition. Conclusion: Bi-tDCS is an effective method for improving jump height by modulating ankle and knee net energy. The net energy improvement of the lower extremities may be due to variation in the kinetic chain resulting from tDCS-enhanced knee exploration force and maximum hip strength in CMJs. The effects of Bi-tDCS gradually decrease.

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“…In order to study in a holistic manner performance assessment in competitive rowing, studies from other scientific fields have focused on different aspects (e.g., analyzing the brain's ability to maintain motor control and the body's metabolism) [4,5]. These factors are crucial to the final performance in competitive rowing; however, they are beyond the scope of this study.…”

Section: Introductionmentioning

confidence: 99%

A Rigorous and Integrated On-Water Monitoring System for Performance and Technique Improvement in Rowing

Mpimis

Gikas

Gourgoulis

2023

Sensors

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This paper presents a prototype, on-water rowing monitoring system and its testing results for a single scull boat. The proposed system aims at recording critical kinetic (athlete biomechanics and oar/seat movements) and kinematic (boat position, velocity, acceleration, and attitude) parameters for sport performance evaluation and rowing technique improvement. The data acquisition unit is organized in two parts: the first part aims at logging boat kinematics based on GNSS/INS filtering, while the second one facilitates kinetics data recording using a series of analog sensors (potentiometers, strain gauges) installed on the athlete’s body and the boat seat and oars. Both parts are connected to a central unit featuring analog voltage digitizers and a micro-PC for device handling and data storing. In order to test the performance of the system a series of field trials were undertaken featuring different observation scenarios as well as intentionally induced errors in the rowing technique. Analysis revealed the high performance of the system in terms of sensor completeness and setup procedures as well as operational efficiency. Moreover, system performance evaluation exercised through studying raw data recordings and resultant parameters at stroke cycle and average (standardized) stroke cycle level confirmed the fruitfulness of the proposed approach and system and its potential for implementation on a broad scale. Finally, the data acquired from the proposed system were used to compute the adopted input parameters and performance indicators to characterize the system in terms of functionality and operational efficiency.

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Functional whole-brain mechanisms underlying effects of tDCS on athletic performance of male rowing athletes revealed by resting-state fMRI

Cited by 3 publications

References 63 publications

Acute anodal transcranial direct current stimulation improves the performance of professional rowers

Acute anodal transcranial direct current stimulation improves the performance of professional rowers

Effects of Bilateral Extracephalic Transcranial Direct Current Stimulation on Lower Limb Kinetics in Countermovement Jumps

A Rigorous and Integrated On-Water Monitoring System for Performance and Technique Improvement in Rowing

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