Effect of tDCS Combined With Physical Training on Physical Performance in a Healthy Population

Juho Jung, Jhosedyn Carolaym Salazar Fajardo, Seongkuk Kim, Byeongsu Kim, Sejun Oh, Bum Chul Yoon

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: The effectiveness of transcranial direct current stimulation (tDCS) combined with physical training has shown inconsistent results through research. Hence, a study utilizing a long-term tDCS application over the primary motor cortex and a large sample size is required to determine whether tDCS combined with physical training can increase physical performance (muscular strength, endurance, and explosive strength) in healthy adults. Material and methods: Fifty-six healthy adults were randomly distributed into two groups: active (active tDCS+ physical training) and sham (sham tDCS + physical training) and received the intervention three times per week for six weeks. Muscle strength was assessed using maximal isometric muscle strength (MIMS) by a digital dynamometer. Muscular endurance and lower limb explosive strength were assessed by using muscle fitness testing (MFT), and the Sargent jump test. Results: The active and sham groups exhibited significant improvement in all measured parameters in intragroup analyses. However, intergroup analyses revealed no significant difference between the groups. Conclusion: Our findings suggest that only physical training improved MIMS in the upper and lower extremities, MFT endurance scores, and lower limb explosive power. Thus, tDCS failed to demonstrate its effectiveness in a healthy population according to the protocol used in this study.

Original languageEnglish
JournalResearch Quarterly for Exercise and Sport
DOIs
Publication statusAccepted/In press - 2023

Bibliographical note

Publisher Copyright:
© 2023 SHAPE America.

Keywords

  • Explosive power
  • muscle strength
  • physical endurance
  • transcranial direct current stimulation

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Nephrology

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