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Fig 1.

Schematic of the experimental protocol.

#—Blood lactate sample. 4DMS—The Four Dimensional Mood Scale. MOT—Rating of motivation related to the time trial. NASA-TLX—The National Aeronautics and Space Administration Task Load Index. RPE—Rating of perceived exertion.

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Fig 1 Expand

Fig 2.

Reaction time (A) and accuracy (B) over time during the 30-min Stroop task in professional (n = 11) and recreational (n = 9) road cyclists.

§ Significant group x time interaction (p < 0.05). Data are presented as mean ± SEM.

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Fig 2 Expand

Fig 3.

Total number of correct responses during the 30-min Stroop task in professional (n = 11) and recreational (n = 9) road cyclists.

* Significant difference between groups (p < 0.05). Data are presented as mean ± SEM.

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Fig 3 Expand

Fig 4.

Effect of prior mental exertion on power output during the 20-min time trial in professional (n = 10) and recreational (n = 9) road cyclists.

§§ Significant group x condition x time interaction (p < 0.05). # Significant main effect of time in recreational cyclists (p < 0.05). * Significant main effect of condition in recreational cyclists (p < 0.05). Data are presented as mean ± SEM.

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Fig 4 Expand

Fig 5.

Effect of prior mental exertion on heart rate during the 20-min time trial in professional (n = 10) and recreational (n = 9) road cyclists.

§ Significant group x time interaction (p < 0.05). # Significant main effects of time in professional and recreational cyclists (p < 0.05). † Significant simple main effects of group (p < 0.05). Data are presented as mean ± SEM.

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Fig 5 Expand

Fig 6.

Effect of prior mental exertion on rating of perceived exertion (RPE) during the 20-min time trial in professional (n = 10) and recreational (n = 9) road cyclists.

§ Significant group x time interaction (p < 0.05). # Significant main effects of time in professional and recreational cyclists (p < 0.05). †Simple main effects of group (p < 0.05). Data are presented as mean ± SEM.

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Fig 6 Expand