Similar ergogenic effect of caffeine on anaerobic performance in men and women athletes

Lara, Beatriz; Salinero, Juan José; Giráldez-Costas, Verónica; Coso, Juan Del

doi:10.1007/s00394-021-02510-6

Cited by 21 publications

(33 citation statements)

References 52 publications

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“…Still, the cause of lack of caffeine’s ergogenicity in some investigations remains uncertain. Recent evidence suggests that the ergogenic effect of caffeine on Wingate performance may be of similar magnitude in men and women [ 23 ], although it may be progressively reduced with chronic ingestion of the substance [ 38 ]. The current investigation suggests an ergogenic effect of caffeine for the 15-s Wingate test with an improvement of 2.9 and 3.5% on peak and mean cycling power, respectively (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Although 3 mg/kg did not modify muscle oxygen saturation during the 15-s Wingate tests, higher doses of caffeine may induce different responses on local oxygen saturation. Third, we used the 15-s modified version of the Wingate Anaerobic test due to its high-reliability levels and because it has been found that 3 mg/kg of caffeine can increase cycling performance in this test [ 22 , 23 , 38 ]. However, the effect of caffeine on muscle oxygen saturation may be different in other forms of anaerobic exercise such as the 30-s Wingate Anaerobic test.…”

Section: Discussionmentioning

confidence: 99%

“…However, the effect of caffeine on muscle oxygen saturation may be different in other forms of anaerobic exercise such as the 30-s Wingate Anaerobic test. Last, we included women and men in the sample of participants because we have recently found that the magnitude of the ergogenic effect of caffeine on the 15-s Wingate test is of similar magnitude in both sexes [ 23 ]. However, further investigation should test whether caffeine similarly affects muscle oxygen saturation during exercise in men and women, particularly as there may be some between-sex differences in caffeine metabolism [ 48 ].…”

Section: Discussionmentioning

confidence: 99%

“…An a priori sample size calculation indicated that at least ten participants were required to obtain statistically significant differences between caffeine and placebo on Wingate peak cycling power. The required sample size was calculated to obtain a caffeine-induced increase of 0.35 W/kg based on a previous study that reported such benefit in men and women with 3 mg/kg of caffeine [ 23 ]. The sample size was calculated using the formula proposed by Vincent and Weir [ 24 ] with a statistical power of 0.80 and a two-tailed α level of 0.05.…”

Section: Methodsmentioning

confidence: 99%

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Effect of caffeine on muscle oxygen saturation during short-term all-out exercise: a double-blind randomized crossover study

et al. 2022

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Purpose The ergogenic effect of oral caffeine administration on short-term all-out exercise performance is well established. However, the potential mechanisms associated with caffeine’s ergogenicity in this type of exercise are poorly understood. The aim of this study was to investigate whether caffeine intake modifies muscle oxygen saturation during the 15-s Wingate Anaerobic Test. Methods Fifteen moderately trained individuals (body mass = 67.4 ± 12.3 kg; height 171.3 ± 6.9 cm; age 31 ± 6 years) took part in two identical experimental trials after the ingestion of (a) 3 mg/kg of caffeine or (b) 3 mg/kg of cellulose (placebo). After 60 min for substances absorption, participants performed a 15-s Wingate test on a cycle ergometer against a load representing 7.5% of participant’s body mass. Muscle oxygen saturation was continuously measured during exercise with near-infrared spectroscopy and blood lactate concentration was measured 1 min after exercise. Results In comparison to the placebo, the oral administration of caffeine increased peak power by 2.9 ± 4.5% (from 9.65 ± 1.38 to. 9.92 ± 1.40 W/kg, P = 0.038; effect size (ES), 95% confidence intervals = 0.28, 0.05–0.51), mean power by 3.5 ± 6.2% (from 8.30 ± 1.08 to 8.57 ± 1.12 W/kg, P = 0.044; ES = 0.36, 0.01–0.71) and blood lactate concentration by 20.9 ± 24.7% (from 12.4 ± 2.6 to 14.8 ± 4.0 mmol/L, P = 0.005; ES = 0.59, 0.16–1.02). However, caffeine did not modify the curve of muscle oxygen desaturation during exercise (lowest value was 23.1 ± 14.1 and 23.4 ± 14.1%, P = 0.940). Conclusion Caffeine’s ergogenic effect during short-term all-out exercise seems to be associated with an increased glycolytic metabolism with no influence of enhanced muscle oxygen saturation.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Effect of caffeine on muscle oxygen saturation during short-term all-out exercise: a double-blind randomized crossover study

et al. 2022

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“…Along these lines, Temple and Ziegler [18] found sex differences in subjective and physiological responses to caffeine that were mediated by changes in circulating steroid hormones. In fact, inconsistent results have been found when comparing the ergogenic effects of caffeine in both sexes, with some studies finding some differences [19] while others found none [20,21]. Moreover, some researchers have concluded that the ergogenic effect of oral caffeine intake is present in both sexes but differs in its magnitude [22].…”

Section: Introductionmentioning

confidence: 99%

Does Acute Caffeine Supplementation Improve Physical Performance in Female Team-Sport Athletes? Evidence from a Systematic Review and Meta-Analysis

et al. 2021

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Introduction: Recent original research and meta-analyses suggest that acute caffeine supplementation improves exercise performance in team-sport athletes (TSA). Nonetheless, most of the studies testing the effects of caffeine on TSA included samples of male athletes, and there is no meta-analysis of the performance-enhancing effects of caffeine on female TSA. The aim of the present study was to synthesize the existing literature regarding the effect of caffeine supplementation on physical performance in adult female TSA. Methods: A search was performed in Pubmed/Medline, SPORTDiscus and Scopus. The search was performed from the inception of indexing until 1 September 2021. Crossover randomized controlled trials (RCT) assessing the effects of oral caffeine intake on several aspects of performance in female TSA were selected. The methodological quality and risk of bias were assessed for individual studies using the Physiotherapy Evidence Database scale (PEDro) and the RoB 2 tool. A random-effects meta-analysis of standardized mean differences (SMD) was performed for several performance variables. Results: The search retrieved 18 articles that fulfilled the inclusion/exclusion criteria. Overall, most of the studies were of excellent quality with a low risk of bias. The meta-analysis results showed that caffeine increased performance in specific team-sport skills (SMD: 0.384, 95% confidence interval (CI): 0.077–0.691), countermovement jump (SMD: 0.208, CI: 0.079–0.337), total body impacts (SMD: 0.488; 95% CI: 0.050, 0.927) and handgrip strength (SMD: 0.395, CI: 0.126–0.665). No effects were found on the ratings of perceived exertion, squat jumps, agility, repeated sprint ability or agility tests performed after fatigue. Conclusions: The results of the meta-analysis revealed that acute caffeine intake was effective in increasing some aspects of team-sports performance in women athletes. Hence, caffeine could be considered as a supplementation strategy for female athletes competing in team sports.

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Caffeine increases exercise intensity and energy expenditure but does not modify substrate oxidation during 1 h of self-paced cycling

et al. 2022

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Aim: Oral caffeine intake has been deemed as an effective supplementation strategy to enhance fat oxidation during aerobic exercise with a steady-state intensity. However, in real exercise scenarios, individuals habitually train with autoregulation of exercise intensity. This study aimed to analyze the effect of oral caffeine intake during selfpaced cycling on autoregulated exercise intensity and substrate oxidation. Methods:Fifteen young and healthy participants (11 men and 4 women) participated in a doubleblind, randomized, cross-over investigation. Each participant took part in two experimental days consisting of pedaling for 1 h with a self-selected wattage.Participants were told that they had to exercise at a moderate intensity to maximize fat oxidation. On one occasion participants ingested 3 mg/kg of caffeine and on the other occasion ingested a placebo. Energy expenditure, fat oxidation rate, and carbohydrate oxidation rate were continuously measured during exercise by indirect calorimetry. Results:In comparison to the placebo, caffeine intake increased the self-selected wattage (on average, 10544 vs 11745 W, respectively, P < 0.001) which represented a higher total work during the cycling session (377157 vs 422160 kJ, P < 0.001).Caffeine increased total energy expenditure (543161 vs 587155 kcal, P = 0.042) but it did not affect total fat oxidation (24.7±12.2 vs 22.911.5 g, P = 0.509) or total carbohydrate oxidation (87.422.4 vs 97.832.3 g, P = 0.101). Conclusion: Acute caffeine ingestion before an exercise session with an individual's freedom to regulate intensity induces a higher self-selected exercise intensity and total work. The selection of a higher exercise intensity augments total energy expenditure but eliminates the effect of caffeine on substrate oxidation during exercise.

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Similar ergogenic effect of caffeine on anaerobic performance in men and women athletes

Cited by 21 publications

References 52 publications

Effect of caffeine on muscle oxygen saturation during short-term all-out exercise: a double-blind randomized crossover study

Effect of caffeine on muscle oxygen saturation during short-term all-out exercise: a double-blind randomized crossover study

Does Acute Caffeine Supplementation Improve Physical Performance in Female Team-Sport Athletes? Evidence from a Systematic Review and Meta-Analysis

Caffeine increases exercise intensity and energy expenditure but does not modify substrate oxidation during 1 h of self-paced cycling

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