Electroencephalography, Mental Fatigue
Conditions
Brief summary
The purpose of this project is to provide further insights into the neurophysiology behind the MF-induced impairment in endurance performance. The aim is to perform a randomized controlled trial in which we partly replicate studies of Marcora et al. (2009) and Bigliassi et al. (2017), while extensively monitoring brain activity during the entire protocol (i.e. both cognitive and physical tasks) by using EEG.
Interventions
A modified Stroop task of approximately 60 min will be used in order to induce mental fatigue (MF). This will be based on their performance during the max test that was conducted during the familiarization session. In this task, which will be partitioned in 4 blocks of 468 stimuli, four colored words (rood, blauw, groen and geel) will be presented one at a time on a computer screen. The participants will be required to indicate the color of the word, ignoring the meaning of the word itself.
In the control task subjects will have to watch a documentary of 60 min on the same computer screen as the one used for the experimental trial. In order to avoid under- and over-arousal the subjects will have the opportunity to choose between several documentaries as proposed by the research team. During the control task physiological and psychological measures will be assessed at the same time points as during the mental fatigue trial.
Sponsors
Vrije Universiteit Brussel
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Outcomes Assessor)
Intervention model description
Randomized, blinded, counter-balanced, cross-over design
Eligibility
Sex/Gender
ALL
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Healthy (No neurological or cardiovascular disorders) * Male or female * No medication * Non-smoker * Between 18 and 35 years old * Recreational athlete population (performance level 2 or 3 for men according to De Pauw et al. (2013) and performance level 2 or 3 for woman according to Decroix et al. (2016)
Exclusion criteria
* Injuries over the last 6 months * Suffering from any cardiovascular condition * Use of medication * Suffering from other health conditions at the time of testing * Use of caffeine or alcohol 24 hours prior to each trial * Heavy efforts 24 hours prior to each trial
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Electroencephalogram data | 1 hours 30 minutes - 2 hours | During whole of the trials EEG data will be gathered, each trial will last one and a half to two hours. EEG power in delta, theta, alpha, beta band. |
| Reaction Time Flanker Task | Total of 10 minutes | Reaction Time will be assessed during Flanker task |
| Accuracy Flanker Task | Total of 10 minutes | Accuracy will be assessed during Flanker task |
| Reaction Time Stroop Task | 60 minutes | Reaction Time will be assessed during Stroop task |
| Accuracy performance Stroop Task | 60 minutes | Accuracy will be assessed during Stroop task |
Countries
Belgium
Contacts
Primary ContactMatthias Proost, MSc
Outcome results
None listed