Volume 23, Issue 30 (1-2026)                   RSMT 2026, 23(30): 26-44 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Khantan M, Abdoli B, Farsi A. Effects Of 10-Session Dual Transcranial Direct Current Stimulation (TDCS) On Professional Swimmers Performance, Mental Toughness And Perceived Exertion. RSMT 2026; 23 (30) :26-44
URL: http://jsmt.khu.ac.ir/article-1-645-en.html
Department of Cognitive and Behavioral Science and Technology in Sport, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran. , b-abdoli@sbu.ac.ir
Abstract:   (6159 Views)
Aim: Transcranial direct current stimulation (tDCS) is one of the newest methods in order to improve the athletic performance and mental preparation of professional athletes. In this study, we investigated the effects of 10-session unihemispheric concurrent dual-site anodal-tDCS (a-tDCS) of the primary motor cortex (M1) and dorsolateral prefrontal cortex (DLPFC), on swimming performance, mental toughness (MT) and perceived exertion.
Methods: 20 male professional swimmers (Age: 19.00±2.86 yrs) were randomly divided into tDCS (n=10) and sham (n=10) groups. On the first day, the Mental Toughness Questionnaire (SMTQ), next day, the 100-meter freestyle swimming performance test, and the rate of perceived exertion scale (RPE) were evaluated as pre-tests. From the third day, 10 sessions of tDCS were applied, each session a current of 2mA for 20 min, half an hour after the usual swimming exercise, three days a week. 48 hrs following 10th session of tDCS, evaluations were repeated. ANCOVA was used for statistical analysis.
Result: After 10 sessions of tDCS, swimming performance improved significantly; The total MT score increased significantly and no significant change was observed in RPE.
Conclusion: Based on this, multi-session tDCS combined with regular training is recommended to improve swimmers performance and psychological aspects that could be considered as a brain conditioning method to increase mental toughness and sports performance.
Full-Text [PDF 2277 kb]   (57 Downloads)    
Type of Study: Applicable | Subject: sport physiology
Received: 2024/09/17 | Accepted: 2025/06/17 | Published: 2026/01/30

References
1. Perrey, S. (2023). Probing the Promises of Noninvasive Transcranial Electrical Stimulation for Boosting Mental Performance in Sports. Brain Sciences, 13(2), 282. Doi: 10.3390/brainsci13020282 [DOI:10.3390/brainsci13020282]
2. Edwards D J et al. (2017). Transcranial direct current stimulation and sports performance. Frontiers in Human Neuroscience, 11:243-247. Doi: 10.3389/fnhum.2017.00243 [DOI:10.3389/fnhum.2017.00243]
3. Liu, X., Yang, X., Hou, Z., Ma, M., Jiang, W., Wang, C., ... & Yuan, Y. (2019). Increased interhemispheric synchrony underlying the improved athletic performance of rowing athletes by transcranial direct current stimulation. Brain imaging and behavior, 13, 1324-1332.‏ Doi: 10.1007/s11682-018-9948-3 [DOI:10.1007/s11682-018-9948-3]
4. Reis, J., & Fritsch, B. (2011). Modulation of motor performance and motor learning by transcranial direct current stimulation. Current Opinion in Neurology, 24(6), 590-596. 10. Doi:10.1097/WCO.0b013e32834c3db0. [DOI:10.1097/WCO.0b013e32834c3db0]
5. Meron, D., Hedger, N., Garner, M., & Baldwin, D. S. (2015). Transcranial direct current stimulation (tDCS) in the treatment of depression: Systematic review and meta-analysis of efficacy and tolerability. Neuroscience and Biobehavioral Reviews, 57, 46-62. Doi:10.1016/j.neubiorev.2015.07.012. [DOI:10.1016/j.neubiorev.2015.07.012]
6. Antal, A., & Paulus,W. (2010). Transcranial magnetic and direct current stimulation in the therapy of pain. Schmerz, 24(2), 161-166. Doi:10.1007/s00482-010-0899-x [DOI:10.1007/s00482-010-0899-x]
7. Boggio, P. S., Valasek, C. A., Campanhã, C., Giglio, A. C. A., Baptista, N. I., Lapenta, O. M., & Fregni, F. (2011). Non-invasive brain stimulation to assess and modulate neuroplasticity in Alzheimer's disease. Neuropsychological Rehabilitation, 21(5), 703-716. Doi:10.1080/09602011.2011.617943 [DOI:10.1080/09602011.2011.617943]
8. Benninger, D. H., Lomarev, M., Lopez, G., Wassermann, E. M., Li, X., Considine, E., & Hallett, M. (2010). Transcranial direct current stimulation for the treatment of Parkinson's disease. Journal of Neurology, Neurosurgery and Psychiatry, 81(10), 1105-1111. Doi: 10.3389/fneur.2021.794784 [DOI:10.3389/fneur.2021.794784]
9. Bolognini, N., Vallar, G., Casati, C., Latif, L. A., El-Nazer, R.,Williams, J., et al. (2011). Neurophysiological and behavioral effects of tDCS combined with constraint-induced movement therapy in poststroke patients. Neurorehabilitation and Neural Repair, 25(9), 819-829. Doi: 10.1177/1545968311411056. [DOI:10.1177/1545968311411056]
10. Montenegro, R. A., Okano, A. H., Cunha, F. A., Gurgel, J. L., Fontes, E. B., & Farinatti, P. T. V. (2012). Prefrontal cortex transcranial direct current stimulation associated with aerobic exercise change aspects of appetite sensation in overweight adults. Appetite, 58(1), 333-338. Doi: 10.1016/j.appet.2011.11.008 [DOI:10.1016/j.appet.2011.11.008]
11. Lattari, E., Rosa Filho, B. J., Junior, S. J. F., Murillo-Rodriguez, E., Rocha, N., Machado, S., & Neto, G. A. M. (2020). Effects on volume load and ratings of perceived exertion in individuals' advanced weight training after transcranial direct current stimulation. The Journal of Strength & Conditioning Research, 34(1), 89-96.‏ Doi: 10.1519/JSC.0000000000002434 [DOI:10.1519/JSC.0000000000002434]
12. Angius, L., Mauger, A. R., Hopker, J., Pascual-Leone, A., Santarnecchi, E., & Marcora, S. M. (2018). Bilateral extracephalic transcranial direct current stimulation improves endurance performance in healthy individuals. Brain stimulation, 11(1), 108-117.‏ Doi: 10.1016/j.brs.2017.09.017 [DOI:10.1016/j.brs.2017.09.017]
13. Foerster, A., Rocha, S., Wiesiolek, C., Chagas, A. P., Machado, G., Silva, E., et al. (2013). Site-specific effects of mental practice combined with transcranial direct current stimulation on motor learning. European Journal of Neuroscience. 37, 786-794. Doi: 10.1111/ejn.12079 [DOI:10.1111/ejn.12079]
14. Tahan, A., & Farsi, A. (2022). The effect of Transcranial Direct Current Stimulation (tDCs) in muscle and mental fatigue conditions on the proprioception of knee joint position. Journal of Sports Psychology.‏ (Persian). Doi:10.29252/MBSP.2022.225592.1100
15. Machado, D., Unal, G., Andrade, S. M., Moreira, A., Altimari, L. R., Brunoni, A. R., et al. (2019). Effect of transcranial direct current stimulation on exercise performance: a systematic review and meta-analysis. Brain Stimul. 12, 593-605. Doi: 10.1016/j.brs.2018.12.227 [DOI:10.1016/j.brs.2018.12.227]
16. Drummond NM, Hayduk-Costa G, Leguerrier A, Carlsen AN. Effector-independent reduction in choice reaction time following bi-hemispheric transcranial direct current stimulation over motor cortex. PLoS One. 2017 Mar 6;12(3):e0172714. Doi: 10.1371/journal.pone.0172714 [DOI:10.1371/journal.pone.0172714]
17. Alix-Fages, C., Romero-Arenas, S., Castro-Alonso, M., Colomer-Poveda, D., Río-Rodriguez, D., Jerez-Martínez, A., ... & Márquez, G. (2019). Short-term effects of anodal transcranial direct current stimulation on endurance and maximal force production: a systematic review and meta-analysis. Journal of clinical medicine, 8(4), 536.‏ Doi: 10.3390/jcm8040536 [DOI:10.3390/jcm8040536]
18. Hertrich, I., Dietrich, S., Blum, C., & Ackermann, H. (2021). The Role of the Dorsolateral Prefrontal Cortex for Speech and Language Processing. Frontiers in human neuroscience, 15, 645209. Doi: 10.3389/fnhum.2021.645209 [DOI:10.3389/fnhum.2021.645209]
19. Etemadi, M., Amiri, E., Tadibi, V., Grospretre, S., Valipour Dehnou, V., & Machado, D. G. D. S. (2023). Anodal tDCS over the left DLPFC but not M1 increases muscle activity and improves psychophysiological responses, cognitive function, and endurance performance in normobaric hypoxia: a randomized controlled trial. BMC neuroscience, 24(1), 25. Doi: 10.1186/s12868-023-00794-4 [DOI:10.1186/s12868-023-00794-4]
20. Nikooharf Salehi, E., Jaydari Fard, S., Jaberzadeh, S., & Zoghi, M. (2022). Transcranial direct current stimulation reduces the negative impact of mental fatigue on swimming performance. Journal of Motor Behavior, 54(3), 327-336.‏ Doi: 10.1080/00222895.2021.1962238 [DOI:10.1080/00222895.2021.1962238]
21. Banaei, P., Tadibi, V., Amiri, E., & Machado, D. G. D. S. (2023). Concomitant dual-site tDCS and dark chocolate improve cognitive and endurance performance following cognitive effort under hypoxia: a randomized controlled trial. Scientific Reports, 13(1), 16473.‏ Doi: 10.1038/s41598-023-43568-y [DOI:10.1038/s41598-023-43568-y]
22. Talimkhani, A., Abdollahi, I., Mohseni-Bandpei, M. A., Ehsani, F., Khalili, S., & Jaberzadeh, S. (2019). Differential effects of unihemispheric concurrent dual-site and conventional tDCS on motor learning: A randomized, sham-controlled study. Basic and clinical neuroscience, 10(1), 59.‏ Doi: 10.32598/bcn.9.10.350 [DOI:10.32598/bcn.9.10.350]
23. Vaseghi, B., Zoghi, M., & Jaberzadeh, S. (2015). The effects of anodal-tDCS on corticospinal excitability enhancement and its after-effects: conventional vs. unihemispheric concurrent dual-site stimulation. Frontiers in human neuroscience, 9, 533. Doi.org/10.3389/fnhum.2015.00533 [DOI:10.3389/fnhum.2015.00533]
24. Maudrich, T., Ragert, P., Perrey, S., & Kenville, R. (2022). Single-session anodal transcranial direct current stimulation to enhance sport-specific performance in athletes: A systematic review and meta-analysis. Brain Stimulation.‏ Doi: 10.1016/j.brs.2022.11.007 [DOI:10.1016/j.brs.2022.11.007]
25. Valenzuela, P. L., Amo, C., Sánchez-Martínez, G., Torrontegi, E., Vázquez-Carrión, J., Montalvo, Z., ... & de la Villa, P. (2019). Enhancement of mood but not performance in elite athletes with transcranial direct-current stimulation. International journal of sports physiology and performance, 14(3), 310-316.‏ Doi: 10.1123/ijspp.2018-0473 [DOI:10.1123/ijspp.2018-0473]
26. Penna, E. M., Filho, E., Campos, B. T., Ferreira, R. M., Parma, J. O., Lage, G. M., ... & Prado, L. S. (2021). No effects of mental fatigue and cerebral stimulation on physical performance of master swimmers. Frontiers in Psychology, 12, 656499.‏ Doi: 10.3389/fpsyg.2021.656499 [DOI:10.3389/fpsyg.2021.656499]
27. Ali Molaei., Sedigheh Hosseinpour Delavar., Mehran Ghahramani., Reza Jabbari., Mohammad Jalilvand.(2020). The Effect of Water Immersion and Transcranial Direct Current Stimulation (TDCS) during Recovery Period on Changes in Blood Lactate and Subsequent Performance of Swimmers. Research in sport medicine and technology. 18 (20):49-58. (Persian). Doi: 10.29252/jsmt.18.20.49
28. Guszkowska, M., & Wójcik, K. (2021). Effect of mental toughness on sporting performance: Review of studies. Baltic Journal of Health and Physical Activity, 13(7), 1. Doi:10.29359/BJHPA.2021.Suppl.2.01 [DOI:10.29359/BJHPA.2021.Suppl.2.01]
29. Cowden, R. G. (2017). Mental toughness and success in sport: A review and prospect. The Open Sports Sciences Journal, 10(1).‏ Doi:10.2174/1875399X01710010001 [DOI:10.2174/1875399X01710010001]
30. Beattie, S., Alqallaf, A., & Hardy, L. (2017). The effects of punishment and reward sensitivities on mental toughness and performance in swimming. International Journal of Sport Psychology. Doi:10.7352/IJSP.2017.48.246
31. Schade, S., Moliadze, V., Paulus, W., & Antal, A. (2012). Modulating neuronal excitability in the motor cortex with tDCS shows moderate hemispheric asymmetry due to subjects' handedness: a pilot study. Restorative neurology and neuroscience, 30(3), 191-198.‏ Doi: 10.3233/RNN-2012-110175 [DOI:10.3233/RNN-2012-110175]
32. Oldfield, R. C. (1971). The assessment and analysis of handedness: the Edinburgh inventory. Neuropsychologia, 9(1), 97-113.‏ Doi: 10.1016/0028-3932(71)90067-4 [DOI:10.1016/0028-3932(71)90067-4]
33. Sheard, M., Golby, J., & Van Wersch, A. (2009). Progress toward construct validation of the Sports Mental Toughness Questionnaire (SMTQ). European Journal of Psychological Assessment, 25(3), 186-193.‏ Doi:10.1027/1015-5759.25.3.186 [DOI:10.1027/1015-5759.25.3.186]
34. Ma, M., Xu, Y., Xiang, Z., Yang, X., Guo, J., Zhao, Y., Hou, Z., Feng, Y., Chen, J., & Yuan, Y. (2022). Functional whole-brain mechanisms underlying effects of tDCS on athletic performance of male rowing athletes revealed by resting-state fMRI. Frontiers in psychology, 13, 1002548. Doi: 10.3389/fpsyg.2022.1002548 [DOI:10.3389/fpsyg.2022.1002548]
35. Wang, J., Lu, M., Fan, Y., Wen, X., Zhang, R., Wang, B., et al. (2016). Exploring brain functional plasticity in world class gymnasts: a network analysis. Brain Structure & Function. 221, 3503-3519. Doi: 10.1007/s00429-015-1116-6 [DOI:10.1007/s00429-015-1116-6]
36. Jog, M. A., Anderson, C., Kubicki, A., Boucher, M., Leaver, A., Hellemann, G., ... & Narr, K. (2023). Transcranial direct current stimulation (tDCS) in depression induces structural plasticity. Scientific reports, 13(1), 2841.‏ Doi.org/10.1038/s41598-023-29792-6 [DOI:10.1038/s41598-023-29792-6]
37. Ke, Y., Liu, S., Chen, L., Wang, X., & Ming, D. (2023). Lasting enhancements in neural efficiency by multi-session transcranial direct current stimulation during working memory training. npj Science of Learning, 8(1), 48. Doi.org/10.1038/s41539-023-00200-y [DOI:10.1038/s41539-023-00200-y]
38. KALININ, R., BALÁZSI, R., PÉNTEK, I., & HANȚIU, I. (2021). Relationship between mental toughness, stress, anxiety and depression. Studia Universitatis Babeș-Bolyai Educatio Artis Gymnasticae, 17-24.‏ Doi:10.24193/subbeag.66(1).02 [DOI:10.24193/subbeag.66(1).02]
39. Bird, M. D., Simons, E. E., & Jackman, P. C. (2021). Mental toughness, sport-related well-being, and mental health stigma among national collegiate athletic association division I student-athletes. Journal of Clinical Sport Psychology, 15(4), 306-322.‏ Doi:10.1123/jcsp.2020-0043 [DOI:10.1123/jcsp.2020-0043]
40. Gerber, M., Best, S., Meerstetter, F., Walter, M., Ludyga, S., Brand, S., ... & Gustafsson, H. (2018). Effects of stress and mental toughness on burnout and depressive symptoms: A prospective study with young elite athletes. Journal of Science and Medicine in Sport, 21(12), 1200-1205.‏ Doi: 10.1016/j.jsams.2018.05.018 [DOI:10.1016/j.jsams.2018.05.018]
41. Angius, L., Santarnecchi, E., Pascual-Leone, A., & Marcora, S. M. (2019). Transcranial direct current stimulation over the left dorsolateral prefrontal cortex improves inhibitory control and endurance performance in healthy individuals. Neuroscience, 419, 34-45.‏‏ Doi: 10.1016/j.neuroscience.2019.08.052 [DOI:10.1016/j.neuroscience.2019.08.052]

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2026 CC BY-NC 4.0 | Research in Sport Medicine and Technology

Designed & Developed by: Yektaweb