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Related Experiment Video

Updated: Oct 14, 2025

Transcranial Direct Current Stimulation and Simultaneous Functional Magnetic Resonance Imaging
13:35

Transcranial Direct Current Stimulation and Simultaneous Functional Magnetic Resonance Imaging

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Transcranial Direct Current Stimulation Does Not Affect Sprint Performance or the Horizontal Force-Velocity Profile.

Carlos Alix-Fages1,2, Amador Garcia-Ramos3,4, Salvador Romero-Arenas2

  • 1University of A Coruña.

Research Quarterly for Exercise and Sport
|November 4, 2021
PubMed
Summary

Transcranial direct current stimulation (tDCS) over the dorsolateral prefrontal cortex does not enhance sprint performance or the force-velocity profile in healthy individuals. No significant differences were found between anodal, cathodal, or sham tDCS conditions.

Keywords:
Ergogenic aidsnoninvasive brain stimulationsport performancetDCS

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Area of Science:

  • Neuroscience
  • Sports Science
  • Human Performance

Background:

  • Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique.
  • tDCS has been explored for its potential to modulate motor performance.
  • The effects of tDCS on explosive athletic actions like sprinting remain unclear.

Purpose of the Study:

  • To investigate the impact of tDCS on maximal sprint performance.
  • To analyze the effects of tDCS on the horizontal force-velocity (F-v) profile during sprinting.

Main Methods:

  • Thirty-two healthy participants underwent three experimental sessions in a double-blinded crossover design.
  • tDCS (anodal, cathodal, or sham) was applied to the left dorsolateral prefrontal cortex (DLPFC) for 15 minutes at 2 mA.
  • Participants performed two maximal 30-meter sprints post-stimulation, with sprint time and F-v profile variables measured.

Main Results:

  • No statistically significant differences in sprint performance or F-v profile variables were observed across anodal, cathodal, and sham tDCS conditions.
  • Effect sizes were negligible for most comparisons, indicating minimal practical differences.
  • Slight, non-significant increases in maximal power (Pmax) and theoretical maximal force (F0) were noted with anodal tDCS compared to sham.

Conclusions:

  • Applying tDCS to the left DLPFC does not improve non-fatigued sprint performance in healthy individuals.
  • The F-v profile characteristics are not significantly altered by tDCS in this context.
  • Current evidence suggests tDCS over the DLPFC is not an effective ergogenic aid for sprinting.