Coffee Ingestion Improves 5 km Cycling Performance in Men and Women by a Similar Magnitude

Clarke, Neil D.; Kirwan, Nicholas A.; Richardson, Darren L.

doi:10.3390/nu11112575

Cited by 17 publications

(19 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ingesting coffee reduced 5-km cycling time-trial completion time by 1.7 ± 2.6% (8 ± 12 s), with low users improving by 1.7 ± 2.8% (9 ± 14 s) and high users by 1.8 ± 2.0% (8 ± 10 s). These findings support Clarke et al (2019), who observed that coffee providing 3 mg/kg of caffeine improved 5-km cycling timetrial performance by 1.9% (men: 2.1% and women: 1.8%) compared with a PLA and Clarke et al (2018) where the ingestion of caffeinated coffee providing 3 mg/kg of caffeine improved 1-mile race time by 1.9% compared with a PLA. In addition, Wiles et al (1992) reported that the ingestion of 3 g of caffeinated coffee, containing approximately 150-200 mg of caffeine, improved 1500-m treadmill running performance by 4.2 s (1.4%) when compared with decaffeinated coffee.…”

Section: Discussionsupporting

confidence: 85%

Habitual Caffeine Consumption Does Not Affect the Ergogenicity of Coffee Ingestion During a 5 km Cycling Time Trial

Clarke

Richardson

2021

International Journal of Sport Nutrition and Exercise Metabolism

Self Cite

View full text Add to dashboard Cite

There is growing evidence that caffeine and coffee ingestion prior to exercise provide similar ergogenic benefits. However, there has been a long-standing paradigm that habitual caffeine intake may influence the ergogenicity of caffeine supplementation. The aim of the present study was to investigate the effect of habitual caffeine intake on 5-km cycling time-trial performance following the ingestion of caffeinated coffee. Following institutional ethical approval, in a double-blind, randomized, crossover, placebo-controlled design, 46 recreationally active participants (27 men and 19 women) completed a 5-km cycling time trial on a cycle ergometer 60 m in following the ingestion of 0.09 g/kg coffee providing 3 mg/kg of caffeine, or a placebo. Habitual caffeine consumption was assessed using a caffeine consumption questionnaire with low habitual caffeine consumption defined as <3 and ≥6 mg · kg−1 · day−1 defined as high. An analysis of covariance using habitual caffeine intake as a covariant was performed to establish if habitual caffeine consumption had an impact on the ergogenic effect of coffee ingestion. Sixteen participants were classified as high-caffeine users and 30 as low. Ingesting caffeinated coffee improved 5-km cycling time-trial performance by 8 ± 12 s; 95% confidence interval (CI) [5, 13]; p < .001; d = 0.30, with low, 9±14 s; 95% CI [3, 14]; p = .002; d = 0.18, and high, 8 ± 10 s; 95% CI [−1, 17]; p = .008; d = 0.06, users improving by a similar magnitude, 95% CI [−12, 12]; p = .946; d = 0.08. In conclusion, habitual caffeine consumption did not affect the ergogenicity of coffee ingestion prior to a 5-km cycling time trial.

show abstract

Section: Discussionsupporting

confidence: 85%

Habitual Caffeine Consumption Does Not Affect the Ergogenicity of Coffee Ingestion During a 5 km Cycling Time Trial

Clarke

Richardson

2021

International Journal of Sport Nutrition and Exercise Metabolism

Self Cite

View full text Add to dashboard Cite

show abstract

“…This can partially explain the equivocal nature of previous findings on the ergogenic effects of CAF and can also explain increased TUT in the group of females compared to the decrease of TUT observed for men. Yet, this explanation remains speculative until further investigation confirms an greater effect of CAF in women vs. men in local strength-endurance tests because current evidence shows similar ergogenic benefits in cycling endurance activities [ 29 , 30 ], and a tendency for a lower effect of CAF on strength-endurance performance in female subjects [ 32 ]. However, for assessing local strength-endurance and to test the effectiveness of dietary supplements during resistance exercise, the use of crossover designs and the evaluation of not only the number of REP, but also TUT may be recommended [ 7 ].…”

Section: Discussionmentioning

confidence: 99%

“…In addition, some of the caffeine-induced stimulant effects are of smaller magnitude in women than in men [ 28 ]. Furthermore, two recent investigations have found that the ergogenic effect of CAF may be of similar magnitude in men and women, although these investigations were carried out under aerobic conditions lasting from approximately 6 to 60 min [ 29 , 30 ]. Hence, to date, it is unknown if the ergogenic effects of CAF related to resistance exercise performance observed in male subjects [ 1 , 2 , 5 , 31 ] apply to female athletes.…”

Section: Introductionmentioning

confidence: 99%

The effects of different doses of caffeine on maximal strength and strength‐endurance in women habituated to caffeine

Filip-Stachnik

Wilk

Krzysztofik

et al. 2021

Journal of the International Society of Sports Nutrition

View full text Add to dashboard Cite

Purpose The main goal of this study was to assess the acute effects of 3 and 6 mg of caffeine intake per kg of body mass (b.m.) on maximal strength and strength-endurance in women habituated to caffeine. Methods Twenty-one healthy resistance-trained female students (23.0 ± 0.9 years, body mass: 59.0 ± 6.6 kg), with a daily caffeine intake of 5.8 ± 2.6 mg/kg/b.m. participated in a randomized, crossover, double-blind design. Each participant performed three experimental sessions after ingesting either a placebo (PLAC) or 3 mg/kg/b.m. (CAF-3) and 6 mg/kg/b.m. (CAF-6) of caffeine. In each experimental session, the participants underwent a 1RM test and a strength-endurance test at 50 %1RM in the bench press exercise. Maximal load was measured in the 1RM test and the time under tension, number of preformed repetitions, power output and bar velocity were registered in the strength-endurance test. Results The one-way ANOVA showed a main effect of caffeine on 1RM bench press performance (F = 14.74; p < 0.01). In comparison to the PLAC (40.48 ± 9.21 kg), CAF-3 (41.68 ± 8.98 kg; p = 0.01) and CAF-6 (42.98 ± 8.79 kg; p < 0.01) increased 1RM bench press test results. There was also a significant increase in 1RM for CAF-6 when compared to CAF-3 (p < 0.01). There was a main effect of caffeine on time under tension during the strength-endurance test (F = 13.09; p < 0.01). In comparison to the PLAC (53.52 ± 11.44 s), CAF-6 (61.76 ± 15.39 s; p < 0.01) significantly increased the time under tension during the maximal strength-endurance test. Conclusion An acute dose of 3-to-6 mg/kg/b.m. of caffeine improves maximum strength. However, these doses of caffeine had minimal ergogenic effect on strength-endurance performance in women habituated to caffeine.

show abstract

“…In this sample, sixteen players were men and fifteen were women. The data on the men and women were merged as the ergogenic response to caffeine is similar in both sexes [41,42]. Ten women participants were tested during the follicular phase of their menstrual cycle and five were tested during the luteal phase according to a mobile application (Mycalendar ® , Period-tracker, USA).…”

Section: Participantsmentioning

confidence: 99%

Effects of CYP1A2 and ADORA2A Genotypes on the Ergogenic Response to Caffeine in Professional Handball Players

Muñoz

López-Samanés

Aguilar-Navarro

et al. 2020

Genes

View full text Add to dashboard Cite

Previous investigations have found that several genes may be associated with the interindividual variability to the ergogenic response to caffeine. The aim of this study is to analyze the influence of the genetic variations in CYP1A2 (−163C > A, rs762551; characterized such as “fast” (AA genotype) and “slow” caffeine metabolizers (C-carriers)) and ADORA2A (1976T > C; rs5751876; characterized by “high” (TT genotype) or “low” sensitivity to caffeine (C-carriers)) on the ergogenic response to acute caffeine intake in professional handball players. Thirty-one professional handball players (sixteen men and fifteen women; daily caffeine intake = 60 ± 25 mg·d−1) ingested 3 mg·kg−1·body mass (bm) of caffeine or placebo 60 min before undergoing a battery of performance tests consisting of a countermovement jump (CMJ), a sprint test, an agility test, an isometric handgrip test, and several ball throws. Afterwards, the handball players performed a simulated handball match (2 × 20 min) while movements were recorded using inertial units. Saliva samples were analyzed to determine the genotype of each player for the −163C > A polymorphism in the CYP1A2 gene (rs762551) and for the 1976T > C polymorphism in the ADORA2A gene (rs5751876). In the CYP1A2, C-allele carriers (54.8%) were compared to AA homozygotes (45.2%). In the ADORA2A, C-allele carriers (80.6%) were compared to TT homozygotes (19.4%). There was only a genotype x treatment interaction for the ball throwing from 7 m (p = 0.037) indicating that the ergogenic effect of caffeine on this test was higher in CYP1A2 AA homozygotes than in C-allele carriers. In the remaining variables, there were no genotype x treatment interactions for CYP1A2 or for ADORA2A. As a whole group, caffeine increased CMJ height, performance in the sprint velocity test, and ball throwing velocity from 9 m (2.8–4.3%, p = 0.001–0.022, effect size = 0.17–0.31). Thus, pre-exercise caffeine supplementation at a dose of 3 mg·kg−1·bm can be considered as an ergogenic strategy to enhance some neuromuscular aspects of handball performance in professional handball players with low daily caffeine consumption. However, the ergogenic response to acute caffeine intake was not modulated by CYP1A2 or ADORA2A genotypes.

show abstract

Coffee Ingestion Improves 5 km Cycling Performance in Men and Women by a Similar Magnitude

Cited by 17 publications

References 48 publications

Habitual Caffeine Consumption Does Not Affect the Ergogenicity of Coffee Ingestion During a 5 km Cycling Time Trial

Habitual Caffeine Consumption Does Not Affect the Ergogenicity of Coffee Ingestion During a 5 km Cycling Time Trial

The effects of different doses of caffeine on maximal strength and strength‐endurance in women habituated to caffeine

Effects of CYP1A2 and ADORA2A Genotypes on the Ergogenic Response to Caffeine in Professional Handball Players

Contact Info

Product

Resources

About