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Adaptive cognitive tasks for mental fatigue: An innovative paradigm for cognitive loading in human performance
Walter Staiano1, Marco Romagnoli2, Lluís Raimon Salazar Bonet3
1Department of Physical Education and Sport, University of Valencia, Valencia, Spain; Department of Psychology, Biological and Cognitive Psychology, University of Southern Denmark, Odense, Denmark. Electronic address: https://twitter.com/walterstaiano.
Journal of Science and Medicine in Sport
|August 29, 2024
Summary
Shorter adaptive tasks, like the 20-minute Time Load Dual Back (TLDB), induce mental fatigue (MF) more effectively than longer tasks, impairing both cognitive and intermittent running performance. The 10-minute TLDB did not significantly impact performance.
Area of Science:
- Sports Science
- Cognitive Neuroscience
- Exercise Physiology
Background:
- Mental fatigue (MF) is a significant factor affecting athletic performance.
- Understanding the optimal duration and type of tasks to induce MF is crucial for training and assessment.
Purpose of the Study:
- To test if a shorter adaptive Time Load Dual Back (TLDB) task induces MF faster than a longer Stroop task.
- To determine the subsequent impact of induced MF on cognitive and intermittent running performance.
Main Methods:
- A randomized within-participant design was used with 25 trained individuals.
- Participants completed a Yo-Yo test after 30-min Stroop, 20-min TLDB, 10-min TLDB, or control conditions.
- Cognitive performance (PVT), mood, workload, MF, RPE, HR, and HRV were assessed.
Main Results:
- Both 30-min Stroop and 20-min TLDB tasks impaired running performance and cognitive function (PVT).
- The 20-min TLDB showed a greater impact on MF, mental demand, HR, and HRV compared to other conditions.
- No significant performance decrements were observed after the 10-min TLDB or control conditions.
Conclusions:
- The 30-min Stroop and 20-min TLDB tasks effectively induce mental fatigue, impairing both cognitive and intermittent running performance.
- Shorter adaptive tasks, like the 20-min TLDB, appear more efficient in inducing MF.
- These findings have potential clinical applications for assessing conditions like traumatic brain injury and concussion.
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