Performance of muscle strength and fatigue tolerance in young trained women supplemented with caffeine

Fett, Carlos Alexandre; Aquino, Natalia M; Schantz, Jairo; Brandão, Camila; Cavalcanti, Joás D de Araújo; Fett, Waléria Christiane Rezende

doi:10.23736/s0022-4707.17.06615-4

Cited by 13 publications

(15 citation statements)

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“…The lack of differences between caffeine and placebo trials, and the high rate of identification of caffeine trials, suggest that the ergogenic benefit derived from 6 mg/kg of caffeine was associated to pharmacological effects derived from substance intake plus expectancy. The absence of ergogenic aid with caffeine intake over the placebo, despite the same doses has been confirmed as ergogenic in previous investigations in respect to placebos [21,28,[30][31][32], is probably linked to the habituation to caffeine in the study sample, which ingested 5.7 ± 2.0 mg/kg/ day of caffeine daily. It is likely that habituation to caffeine produced tolerance to the ergogenic effect of caffeine [13] as both doses were below their daily caffeine intake.…”

Section: Discussionsupporting

confidence: 66%

Acute effects of two caffeine doses on bar velocity during the bench press exercise among women habituated to caffeine: a randomized, crossover, double-blind study involving control and placebo conditions

et al. 2021

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Purpose The main goal of this study was to evaluate the effectiveness of two different doses of caffeine (3 and 6 mg/kg) to enhance bar velocity during the bench press in women habituated to caffeine. Methods Twelve recreationally trained women (age: 23.3 ± 0.8 years, body mass: 60.7 ± 5.7 kg, bench press one-repetition maximum (1RM): 44.3 ± 7.8 kg, daily caffeine ingestion: 5.7 ± 2.0 mg/kg/day) participated in a randomized double-blind experimental design. Each participant performed four different experimental sessions: after no supplementation (control, CON), after ingesting 3 and 6 mg/kg of caffeine (CAF-3 and CAF-6, respectively), or after ingesting a placebo (PLAC). In each experimental session, the participants performed 3 sets of 3 repetitions of the bench press exercise at 50% 1RM. Results A two-way repeated-measures ANOVA with subsequent post hoc analyses indicated significant increases in peak velocity (p < 0.01; ES = 0.91) and mean velocity (p < 0.01; ES = 0.78) after the intake of CAF-6 compared to CON. The study did not show significant differences in bar velocity between CAF-6 and PLAC and between CAF-3 and PLAC. No significant differences in bar velocity were observed between CAF-3 and CAF-6 conditions. Conclusion These results suggest that 6 mg/kg of caffeine can be an effective dose to improve power-specific training outcomes in women habituated to caffeine. However, the ergogenic effect of 6 mg/kg of caffeine may be derived from a combination of biological effects and expectancy, as this dose was only superior to the control condition with no differences over the placebo.

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Section: Discussionsupporting

confidence: 66%

Acute effects of two caffeine doses on bar velocity during the bench press exercise among women habituated to caffeine: a randomized, crossover, double-blind study involving control and placebo conditions

et al. 2021

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“…Fett et al conducted a single-blind crossover study to determine the effect of caffeine on muscular strength and fatigue tolerance. The participants of study were eight women with ages ranging from 20 to 30 years old, with each having atleast one year of continuous resistance training [13]. Average body mass index (BMI) for the subjects was restricted between 20 and 25 kg/ m2.…”

Section: Resultsmentioning

confidence: 99%

“…After examination of the seven randomized controlled trials, this literature review sought to determine if caffeine was able to enhance athletic performance through physiological and neuromuscular effects [3][4][5]9,[11][12][13]. The end goal of this paper was to prove caffeine could be used as a performance enhancing agent prior to an athletic event to give athletes an advantage during competition.…”

Section: Discussionmentioning

confidence: 99%

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The Effect of Caffeine on Athletic Performance

Mishra¹

2022

J Clin Stud Rev Rep

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Hypothesis: The intake of caffeine can increase physical performance during athletic activity Methods: A search for primary sources was done using PubMed with MeSH terms. The search was limited to randomized controlled trials that were published between 2015 and 2020. After application of inclusion and exclusion criteria, seven articles were selected for this literature review. Results: Of the seven randomized controlled trials selected, six demonstrated caffeine ingestion led to a statistically significant increase in physical performance. One of the randomized controlled trials found no statistically significant relationship between caffeine and run timings. Major findings and results of the studies were stated and contrasted against each other. Conclusion: With regards to the results of the selected studies, caffeine was shown to have ergogenic activity and was able to increase physical performance during exercise and sporting competition through multiple mechanisms. Further research should be done with greater sample sizes to determine the effect of rate of metabolism on caffeine activity and to compare caffeine responders and non-responders.

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“…Fett et al [31] found that caffeine improved fatigue tolerance and strength in young women, being useful for improving performance in women who practice sports and physical activities [31]. One systematic review study concluded that they had found no significant differences between sexes in terms of the effect of caffeine supplementation on aerobic performance and the fatigue index.…”

Section: The Effects Of Caffeine and Sports Performancementioning

confidence: 99%

Bibliometric Analysis of Studies on Coffee/Caffeine and Sport

et al. 2021

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This article provides an empirical overview of coffee/caffeine studies in relation to sport worldwide, an incipient but growing relationship that has existed since 1938, although systematized over time since 1999. The extracted articles were examined using a bibliometric approach based on data from 160 records stored in the Web of Science (JCR) between 1938 and August 2021, applying traditional bibliometric laws and using VOSviewer for data and metadata processing. Among the results, these articles highlight an exponential increase in scientific production in the last two decades, with a concentration in only 12 specific journals, the hegemony of the USA among the co-authorship networks of worldwide relevance, and the thematic and temporal segregation of the concepts under study. This article concludes a high fragmentation of the authors with the highest level of scientific production and an evolution of almost 20 years in relevant thematic topics, and a concurrent concentration in three large blocks: (1) coffee consumption and risk factors, (2) health and coffee consumption, and (3) metabolism and sport correlated with the intake of coffee, which are distanced in time, providing evidence of an evolution that gives way to the irruption of alternative visions in the relationship of coffee and caffeine with sport.

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Performance of muscle strength and fatigue tolerance in young trained women supplemented with caffeine

Cited by 13 publications

References 0 publications

Acute effects of two caffeine doses on bar velocity during the bench press exercise among women habituated to caffeine: a randomized, crossover, double-blind study involving control and placebo conditions

Acute effects of two caffeine doses on bar velocity during the bench press exercise among women habituated to caffeine: a randomized, crossover, double-blind study involving control and placebo conditions

The Effect of Caffeine on Athletic Performance

Bibliometric Analysis of Studies on Coffee/Caffeine and Sport

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