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The Effect of Anti-Fatigue Decoction on the Behaviors and Serological Indicators in a Central Fatigue Rat Model
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A caffeine-maltodextrin mouth rinse counters mental fatigue.
Jeroen Van Cutsem1,2, Kevin De Pauw1, Samuele Marcora2
1Human Physiology Research Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium.
Psychopharmacology
|December 17, 2017
Summary
Frequent mouth rinsing with caffeine and maltodextrin reduced mental fatigue during demanding cognitive tasks. This intervention improved cognitive performance and brain activity compared to a placebo rinse.
Area of Science:
- Cognitive Neuroscience
- Human Performance
- Sports Science
Background:
- Mental fatigue arises from prolonged cognitive exertion, impacting daily life.
- Caffeine and carbohydrates can mitigate mental fatigue, but ingestion isn't always feasible.
- Mouth rinsing with these substances has shown promise in enhancing exercise performance.
Purpose of the Study:
- To investigate the efficacy of frequent caffeine-maltodextrin (CAF-MALT) mouth rinsing.
- To assess its impact on mental fatigue induced by a prolonged cognitive task.
Main Methods:
- Ten male participants completed two trials involving cognitive tasks (Flanker, Stroop).
- Participants received either a CAF-MALT or placebo mouth rinse periodically during a 90-minute Stroop task.
- Cognitive performance and brain activity (DLPFC P2 amplitude) were monitored.
Main Results:
- Self-reported mental fatigue was significantly lower with CAF-MALT mouth rinsing compared to placebo.
- Normalized accuracy on the Stroop task was higher in the final block for the CAF-MALT group.
- Brain activity (DLPFC P2 amplitude) showed a decrease over time only in the placebo group.
Conclusions:
- Frequent mouth rinsing with caffeine-maltodextrin effectively reduces mental fatigue during demanding cognitive tasks.
- This intervention enhances cognitive performance and preserves neural activity.
- Mouth rinsing offers a viable alternative to ingestion for managing mental fatigue.
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