Dispelling the myth that habitual caffeine consumption influences the performance response to acute caffeine supplementation

Gonçalves, Lívia de Souza; Painelli, Vítor de Salles; Yamaguchi, Guilherme; Oliveira, Luana Farias de; Saunders, Bryan; Silva, Rafael Pires da; Maciel, Érika da Silva; Artioli, Guilherme Giannini; Roschel, Hamilton; Gualano, Bruno

doi:10.1152/japplphysiol.00260.2017

Cited by 137 publications

(139 citation statements)

References 29 publications

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“…Thirteen women triathletes volunteered to participate in this investigation (age = 31 ± 6 years; body mass = 58.6 ± 7.8 kg; body height = 1.66 ± 0.06 m, body fat = 14.5 ± 6.5%; maximal oxygen uptake = 48.1 ± 7.3 mL kg −1 min −1 ). The inclusion criteria were as follows: (i) age between 18 and 40 years; (ii) being involved in triathlon competitions and with an endurance training of ~2 h day −1 , at least 5 days week −1 for the previous 2 months; (iii) having a daily caffeine consumption lower than 50 mg day −1 in the previous 3 months (measured with a food frequency questionnaire; (iv) having a regular duration of their menstrual cycle, defined as a variation lower than 3 days in the range of their menstrual cycles' length for the previous 4 months . The exclusion criteria were: (i) having a menstrual disorder; (ii) positive smoking status; (iii) a previous history of cardiopulmonary diseases; (iv) any injury in the previous 6 months; (v) taking oral contraceptives or medications in the previous month; (vi) allergy to caffeine.…”

Section: Methodsmentioning

confidence: 99%

Acute caffeine intake increases performance in the 15‐s Wingate test during the menstrual cycle

Lara

Gutiérrez-Hellín

Ruíz-Moreno

et al. 2020

Brit J Clinical Pharma

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Aims In male athletes, caffeine is considered an ergogenic aid to increase anaerobic performance during the Wingate anaerobic test (WANT). However, information about the effect of caffeine on WANT performance in female athletes is contradictory. Furthermore, it is unknown whether the ergogenicity of caffeine is present during all the phases of the menstrual cycle. The aim of this study was to investigate the effects of caffeine intake on WANT performance during 3 phases of the menstrual cycle. Methods Thirteen well‐trained eumenorrhoeic triathletes participated in a double‐blind, placebo‐controlled, cross‐over experimental trial. On 2 different days in each phase, and in randomized order, participants ingested caffeine (3 mg kg−1) or a placebo (cellulose). The menstrual cycle phases were individually characterized as follows: (i) early follicular; (ii) preovulatory; and (iii) midluteal. In each trial, participants performed a 15‐s adapted version of the WANT. Results In comparison to the placebo, caffeine increased peak power during the WANT in the early follicular (8.6 ± 0.8 vs 8.9 ± 0.9 W/kg, P = .04; effect size [d] = 0.45), preovulatory (8.6 ± 0.9 vs 8.9 ± 0.9 W/kg, P = .04; d = 0.23) and mid‐luteal phases (8.6 ± 0.8 vs 8.9 ± 0.9 W/kg, P < .01; d = 0.52). Conclusion The ergogenic effect of caffeine on WANT peak cycling power was of a similar magnitude in the follicular, preovulatory, and mid‐luteal phases. These results suggest that caffeine increases performance in the 15‐s Wingate test in women athletes and it might be considered an ergogenic aid to increase anaerobic performance in eumenorrhoeic women during their menstrual cycle.

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Section: Methodsmentioning

confidence: 99%

Acute caffeine intake increases performance in the 15‐s Wingate test during the menstrual cycle

Lara

Gutiérrez-Hellín

Ruíz-Moreno

et al. 2020

Brit J Clinical Pharma

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“…Creatine supplementation has shown to increase power output, muscle recovery, lean body mass, and delay fatigue in short duration high power exercises [7]. Caffeine supplementation has shown to cause a delay in fatigue, increase strength, and increase peak and mean power output [8]. Increases in nitric oxide production have been suggested to improve tolerance to physical activity by enhancing oxygen and nutrient delivery to the muscles being used during exercise [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Supplementation of a Pre-workout on Power Maintenance in Lower Body and Upper Body Tasks in Women

Lane

Byrd

Bell

et al. 2019

JFMK

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Currently there is a lack of research into how women respond to pre-workout supplementation. The effects of supplements on exercise performance in women, specifically to power, must be performed. This study investigated the effects of supplementation on power production and maintenance during a high-intensity cycle ergometry sprint performance, vertical jump performance, and bench press performance in women. It also investigated the effects of supplementation on power production and the maintenance of upper and lower body tasks in women. A total of 23 females (22.9 ± 3.6 years, 175.6 ± 6.5 cm, 86.9 ± 15.1 kg, 19.1 ± 8.4 body fat percentage (BF%) (mean ± std. dev.)) were familiarized with the testing protocol and maximal bench press performances were attained (49.5 ± 15.4 kg). Utilizing a double-blind crossover design, subjects completed three trials of: Five countermovement vertical jumps, a high-intensity cycle sprint protocol, which consisted of 10 maximal, five second cycle ergometer sprints. Subjects performed a velocity bench press test, utilizing 80% of their predetermined one repetition maximum (1RM) for 10 sets of three repetitions for maximal speed. For 20 min prior to each trial, the subjects ingested, in a randomized order, a pre-workout supplement (Supp), placebo+150 mg caffeine (Caff), or a placebo (PL). Peak power (PP), mean power (MP), and minimum power (MNP) were recorded for each sprint. Maximal velocity from each set was also recorded. Bike sprint and bench press data were normalized to the placebo trial for analysis. Blood lactate (bLa − ) was measured immediately prior to each testing session, within 2 min of the completion of the last cycle sprint and following the bench press test. Bike sprint and bench press testing showed no significant differences through the testing sessions, but did significantly decline over test battery (p < 0.05). Vertical jump performance and lactate levels were not significantly different. Supplementation with a pre-workout supplement or placebo with caffeine 20 min prior to participation showed no positive benefits to performance in female participants.

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“…Supplements that increase nitric oxide levels, specifically citrulline malate and beetroot extract, have been shown to enhance performance [13][14][15][16][17][18][19]. Citrulline has been shown to have effects after being chronically ingested at 6 grams per day for 3 weeks [14] or at loads relative to body size [15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Pre-Workout Supplements on Power Maintenance in Lower Body and Upper Body Tasks

Lane

Byrd

2018

JFMK

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Abstract:Recently, the use of pre-workout supplements has become popular. Research has shown their ability to increase performance for single bouts but little exists showing their ability to maintain this increase in performance over multiple bouts. Purpose: To investigate the effects of supplements on power production and the maintenance of upper and lower body tasks. Methods: Twenty-three males (22.9 ± 3.6 years, 175.6 ± 6.5 cm, 86.9 ± 15.1 kg, 19.1 ± 8.4 BF% mean ± standard deviation (SD)) were familiarized with the testing protocols and maximal bench press performances were attained (109.1 ± 34.0 kg). Utilizing a double-blind crossover design, subjects completed three trials of five countermovement vertical jumps before and after a high-intensity cycle sprint protocol, which consisted of ten maximal 5 s cycle ergometer sprints utilizing 7.5% of the subject's body weight as resistance, with 55 s of recovery between each sprint. Subjects ingested in a randomized order a commercially available pre-workout supplement (SUP), placebo + 300 mg caffeine (CAF), or a placebo (PLA). Peak power (PP), mean power (MP), and minimum power (MNP) were recorded for each sprint. Subjects performed a velocity bench press test utilizing 80% of their predetermined one repetition maximum (1RM) for 10 sets of 3 repetitions for maximal speed, with one-minute rests between sets. Maximal velocity from each set was recorded. For analysis, bike sprint and bench press data were normalized to the placebo trial. Results: Cycle sprint testing showed no significant differences through the testing sessions. In the bench press, the peak velocity was higher with both the SUP and CAF treatments compared to the placebo group (1.09 ± 0.17 SUP, 1.10 ± 0.16 CAF, and 1 ± 0 PLA, p < 0.05) and the supplement group was higher than the PLA for mean velocity (1.11 ± 0.18 SUP and 1 ± 0 PLA, p < 0.05). Vertical jump performance and lactate levels were not significantly different (RMANOVA showed no significant differences from any treatments). Conclusions: Supplementation with a pre-workout supplement or placebo with caffeine showed positive benefits in performance in bench press velocity.

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Dispelling the myth that habitual caffeine consumption influences the performance response to acute caffeine supplementation

Cited by 137 publications

References 29 publications

Acute caffeine intake increases performance in the 15‐s Wingate test during the menstrual cycle

Acute caffeine intake increases performance in the 15‐s Wingate test during the menstrual cycle

Effects of Supplementation of a Pre-workout on Power Maintenance in Lower Body and Upper Body Tasks in Women

Effects of Pre-Workout Supplements on Power Maintenance in Lower Body and Upper Body Tasks

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