Caffeine ingestion increases endurance performance of trained male cyclists when riding against a virtual opponent without altering muscle fatigue

Tomazini, Fabiano; Santos-Mariano, Ana C.; Andrade, Vinícius Ferreira dos Santos; Coelho, Daniel Boari; Bertuzzi, Rômulo; Pereira, Gléber; Silva‐Cavalcante, Marcos David; Lima‐Silva, Adriano Eduardo

doi:10.1007/s00421-022-04969-5

Cited by 2 publications

(1 citation statement)

References 61 publications

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“…Cycling competitions consist of individual time trials, in which the cyclist competes alone, or individual and team pursuit, in which the cyclist competes simultaneously with other riders. Because the presence of other riders will influence exercise performance during time trials ( 37 - 40 ), our results are constrained to individual time trials.…”

Section: Discussionmentioning

confidence: 99%

Effect of different pacing strategies on 4-km cycling time trial performance

Vieira-Cavalcante

Venancio-Dallan

Santana

et al. 2022

Braz J Med Biol Res

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In cycling, there is a body of evidence that supports that an all-out start strategy is superior to an even-pacing strategy, but it is unknown whether an all-out start strategy is superior to a self-paced strategy. In the present study, we investigated the effects of three different pacing strategies on 4-km cycling time trial performance. After preliminary trials (familiarization trials and a baseline 4-km cycling time trial), in a randomized and counterbalanced order, twelve male cyclists (32.3±7.2 years old, maximum rate of O 2 uptake (V̇O 2 peak) 4.3±0.4 L/min) completed: 1) a self-paced 4-km cycling time trial; 2) an all-out start (∼10 s), followed by maintenance of the average baseline trial power for the first km and self-paced cycling for the remaining trial (all-out+mean); and 3) an all-out start (∼10 s), followed by a power 5% above the average baseline trial power for the first km and self-paced cycling for the remaining trial (all-out+5%mean). Although there was a significant interaction between power and distance (P=0.001) with different power distribution profiles throughout the trial, there was no significant difference (P=0.99) between the three strategies for overall exercise performance (self-paced 379.8±13.9 s, all-out+mean 380.0±16.0 s, and all-out+5%mean 380.2±11.5 s). Oxygen uptake, rating of perceived effort, and heart rate were also similar across the pacing strategies. Different all-out start strategies did not confer additional benefits to performance compared to a self-paced strategy.

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Section: Discussionmentioning

confidence: 99%

Effect of different pacing strategies on 4-km cycling time trial performance

Vieira-Cavalcante

Venancio-Dallan

Santana

et al. 2022

Braz J Med Biol Res

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Réflexions théoriques et méthodologiques autour du concept de fatigue cognitive

Mangin

Audiffren

André

2023

Mov Sport Sci/Sci Mot

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Au quotidien nous réalisons des tâches cognitives qui requièrent de l’effort. Quand ces tâches sont particulièrement longues et/ou difficiles, elles induisent généralement de la fatigue cognitive. Cette dernière entraîne une baisse des performances qui s’accroît au cours du temps passé sur la tâche et s’observe dans des tâches subséquentes. Bien que ce champ de recherche soit très prolifique avec des centaines d’études publiées chaque année, l’existence de l’effet délétère de la fatigue cognitive sur la performance ainsi que les mécanismes explicatifs qui sous-tendent cet effet sont encore en débat. Cet article présente dans un premier temps la distinction entre le concept de fatigue cognitive et différents concepts proches tels que ceux de fatigue centrale, de fatigue physique ou encore d’ennui. Par la suite, les grandes théories explicatives de la fatigue cognitive sont abordées, ainsi que leurs divergences et convergences. Les méthodologies employées pour étudier la fatigue cognitive sont aussi explorées, ainsi que les variables confondantes qui doivent être contrôlées lors de la réalisation d’études sur ce sujet. Enfin, les perspectives pour les recherches futures sont explorées notamment les synergies entre les théories explicatives, les moyens de lutter contre la fatigue cognitive aiguë ou encore les pathologies qui peuvent accentuer la fatigue cognitive.

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Caffeine ingestion increases endurance performance of trained male cyclists when riding against a virtual opponent without altering muscle fatigue

Cited by 2 publications

References 61 publications

Effect of different pacing strategies on 4-km cycling time trial performance

Effect of different pacing strategies on 4-km cycling time trial performance

Réflexions théoriques et méthodologiques autour du concept de fatigue cognitive

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