Effects of Caffeinated Coffee on Cross-Country Cycling Performance in Recreational Cyclists

Trujillo-Colmena, Daniel; Fernández-Sánchez, Javier; Rodríguez-Castaño, Adrián; Casado, Arturo; Del Coso, Juan

doi:10.3390/nu16050668

Cited by 4 publications

(1 citation statement)

References 42 publications

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“…Caffeine, being a significant sports nutrition supplement, has consistently garnered considerable attention [109]. Early investigations have substantially propelled research advancements in this domain and contributed to the widespread utilization of caffeine in daily practices [110][111][112][113][114]. While the majority of studies have indicated caffeine's performanceenhancing effects across various athletic disciplines, some have yielded inconclusive results regarding its efficacy in certain performance metrics [115].…”

Section: Considerations For Timing Factors In Future Caffeine Researchmentioning

confidence: 99%

Timing Matters: Time of Day Impacts the Ergogenic Effects of Caffeine—A Narrative Review

Zhang,

Yang,

Xue

et al. 2024

Nutrients

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Caffeine has attracted significant attention from researchers in the sports field due to its well-documented ergogenic effects across various athletic disciplines. As research on caffeine continues to progress, there has been a growing emphasis on evaluating caffeine dosage and administration methods. However, investigations into the optimal timing of caffeine intake remain limited. Therefore, this narrative review aimed to assess the ergogenic effects of caffeine administration at different times during the morning (06:00 to 10:00) and evening (16:00 to 21:00). The review findings suggest that circadian rhythms play a substantial role in influencing sports performance, potentially contributing to a decline in morning performance. Caffeine administration has demonstrated effectiveness in mitigating this phenomenon, resulting in ergogenic effects and performance enhancement, even comparable to nighttime levels. While the specific mechanisms by which caffeine regulates circadian rhythms and influences sports performance remain unclear, this review also explores the mechanisms underlying caffeine’s ergogenic effects, including the adenosine receptor blockade, increased muscle calcium release, and modulation of catecholamines. Additionally, the narrative review underscores caffeine’s indirect impact on circadian rhythms by enhancing responsiveness to light-induced phase shifts. Although the precise mechanisms through which caffeine improves morning performance declines via circadian rhythm regulation necessitate further investigations, it is noteworthy that the timing of caffeine administration significantly affects its ergogenic effects during exercise. This emphasizes the importance of considering caffeine intake timing in future research endeavors to optimize its ergogenic potential and elucidate its mechanisms.

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Section: Considerations For Timing Factors In Future Caffeine Researchmentioning

confidence: 99%

Timing Matters: Time of Day Impacts the Ergogenic Effects of Caffeine—A Narrative Review

Zhang,

Yang,

Xue

et al. 2024

Nutrients

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Effect of MCT1 A1470T Polymorphism on Lactate and Potassium Concentrations After Caffeine Ingestion During Acute Resistance Exercise

Rahimi,

Faraji,

Hajipoor

et al. 2024

Nutrients

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Background: The monocarboxylate transporter 1 (MCT1) plays a crucial role in regulating lactate and pyruvate transport across cell membranes, which is essential for energy metabolism during exercise. The MCT1 A1470T (rs1049434) polymorphism has been suggested to influence lactate transport, with the T (major) allele associated with greater transport efficiency. This study aimed to investigate the effect of the MCT1 polymorphism on lactate and potassium (K+) concentrations in response to resistance exercise (RE) following caffeine (CAF) ingestion. Methods: Thirty resistance-trained athletes were randomly selected to participate in a randomized, double-blind, placebo-controlled crossover study. Participants consumed either CAF (6 mg/kg of body weight) or a placebo (PL; 6 mg of maltodextrin per kg of body weight) one hour before performing RE. Serum lactate and potassium concentrations were measured before exercise (Pre), immediately after (Post), and 15 min post-exercise (15 min Post). The RE protocol consisted of three sets to failure at 85% of 1RM for each exercise, with 2 min rest intervals between sets. Results: The findings indicate that under caffeine consumption, individuals carrying the A (minor) allele had significantly higher blood lactate levels before (p = 0.037) and immediately after (p = 0.0001) resistance exercise compared to those with the TT genotype. Additionally, caffeine consumption moderated the increase in plasma potassium levels in TT genotype carriers, while A allele carriers exhibited elevated potassium levels 15 min post-exercise, regardless of caffeine or placebo intake (p < 0.05). Conclusions: Our findings suggest that the MCT1 A1470T polymorphism may influence lactate metabolism and clearance under caffeine consumption, potentially impacting exercise performance and recovery.

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Coffea plant (Caffeine): Examining its Impact on Physical and Mental Health

Alimyar,

Nahiz,

Monib

et al. 2024

ejmhr

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This research delves into the extensive use of caffeine across various consumables like foods, drinks, medications, and supplements. Caffeine's influence on the central nervous system renders it a popular substance globally. The study aims to elucidate how caffeine impacts health and overall well-being. It examines both the physical and mental repercussions of caffeine consumption, highlighting its advantages, risks, and individual differences in sensitivity. Moreover, the research investigates how caffeine affects diverse aspects such as sleep, mood, cognition, and physical performance, both positively and negatively. Notably, it also scrutinizes the association between caffeine intake and health conditions like heart disease, bone health, and mental well-being. The research promotes responsible caffeine consumption by advocating for moderation and understanding one's tolerance levels. It underscores the significance of comprehending caffeine's effects to enable informed decisions among consumers, healthcare providers, and policymakers. Emphasizing the prevalence of caffeine consumption, the study underscores the necessity of recognizing its impact on various bodily systems, including the cardiovascular, respiratory, endocrine, and neurological systems. While coffee, a common source of caffeine, offers health benefits, it's crucial to acknowledge caffeine as a chemical compound capable of influencing our nervous and other bodily systems. Excessive consumption of caffeine can pose detrimental effects on health. In essence, this research aims to raise awareness regarding the advantages and disadvantages associated with caffeine consumption. As the most widely consumed psychoactive substance globally, understanding caffeine's effects is imperative for maintaining overall well-being. Many individuals kickstart their day with coffee, unaware of both the positive and negative effects of caffeine.

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Effects of Caffeinated Coffee on Cross-Country Cycling Performance in Recreational Cyclists

Cited by 4 publications

References 42 publications

Timing Matters: Time of Day Impacts the Ergogenic Effects of Caffeine—A Narrative Review

Timing Matters: Time of Day Impacts the Ergogenic Effects of Caffeine—A Narrative Review

Effect of MCT1 A1470T Polymorphism on Lactate and Potassium Concentrations After Caffeine Ingestion During Acute Resistance Exercise

Coffea plant (Caffeine): Examining its Impact on Physical and Mental Health

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