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Cognitive fatigue effects on physical performance during running.

Clare MacMahon1, Linda Schücker, Norbert Hagemann

  • 1Department of Biomedical and Health Sciences, Swinburne University of Technology, Melbourne, Australia.

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Cognitive fatigue significantly slows running performance, even in experienced runners. This mental exhaustion increases perceived exertion, impacting physical output in self-paced tasks.

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Cognitive Psychology

Background:

  • Cognitive tasks can impact physical performance.
  • The effect of cognitive fatigue on self-paced physical tasks is not well understood.

Purpose of the Study:

  • To investigate the impact of cognitive fatigue on a 3,000-meter running performance in experienced runners.
  • To determine if cognitive fatigue affects physiological markers and perceived exertion during running.

Main Methods:

  • Twenty experienced runners completed two 3,000-meter runs.
  • One run was performed after a cognitive fatigue task, the other under non-fatigued conditions.
  • Completion times, heart rate, blood lactate, and perceived exertion were measured.

Main Results:

  • Running times were significantly slower following cognitive fatigue (p = .009).
  • No significant differences were observed in heart rate, blood lactate, or ratings of perceived exertion.
  • Cognitive fatigue increased perceived exertion, leading to reduced running performance.

Conclusions:

  • Cognitive fatigue negatively impacts self-paced physical performance in runners.
  • Mental exertion plays a significant role in overall athletic performance.
  • Further research should explore the mechanisms linking cognitive fatigue and physical output.