The influence of different caffeine doses on visual and audial reaction time with different delay from its consumption

Balkó, Štefan; Šimonek, Jaromír; Balkó, Iva; Heller, Jan; Chytrý, Vlastimil; Balogova, K.; Gronek, Piotr

doi:10.1016/j.scispo.2019.11.004

Cited by 4 publications

(4 citation statements)

References 29 publications

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“…A similar result was observed in moderately trained taekwondo athletes, and acute CAF consumption reduced RT [70]. Also, Balko et al [66] noted that increasing the amount of CAF would enhance reaction time performance by reducing visual and auditory reaction time but not with the lower doses in active sports students. Multiple factors exert an effect on RT, which can be categorized into those associated with the individual and stimuli.…”

Section: Discussionsupporting

confidence: 60%

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Caffeine Improves Sprint Time in Simulated Freestyle Swimming Competition but Not the Vertical Jump in Female Swimmers

Acar,

Mor,

Mor

et al. 2024

Nutrients

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Caffeine (CAF) has been shown to be an effective ergogenic aid in enhancing sports performance, including vertical jump (VJ), sprint, balance, agility, and freestyle swimming performance (FSP). However, whether acute CAF supplementation improves FSP in moderately trained female swimmers has not been well documented. Therefore, this study aimed to investigate the effects of CAF intake on vertical jump, balance, auditory reaction time (ART), and swimming performance in female swimmers. In a double-blind, cross-over design, eight moderately trained female swimmers (age: 21.3 ± 1.4 years, height: 161.2 ± 7.1 cm, body mass: 56.3 ± 6.7 kg, body mass index (BMI): 21.9 ± 1.3 kg/m2, and habitual CAF intake: 246.4 ± 111.4 mg/day) ingested caffeine (CAF) (6 mg/kg) or a placebo (PLA) 60 min before completing VJ, balance, ART, and 25/50 m FSP. CAF supplementation resulted in a significantly lower time both in 25m (p = 0.032) and 50m (p = 0.033) FSP. However, CAF resulted in no significant difference in VJ, ART, and RPE (p > 0.05). Balance test results showed a non-significant moderate main effect (d = 0.58). In conclusion, CAF seems to reduce time in short-distance swimming performances, which could be the determinant of success considering the total time of the race. Thus, we recommend coaches and practitioners incorporate CAF into swimmers’ nutrition plans before competitions, which may meet the high performance demands.

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Section: Discussionsupporting

confidence: 60%

“…In our study, CAF intake appears to have no effect on ART values. Other studies, however, have revealed contradictory results [41,[64][65][66][67]. Impey et al [64,65] reported that CAF ingestion 60 min before exercise improved visual and auditory reaction times.…”

Section: Discussionmentioning

confidence: 99%

Caffeine Improves Sprint Time in Simulated Freestyle Swimming Competition but Not the Vertical Jump in Female Swimmers

Acar,

Mor,

Mor

et al. 2024

Nutrients

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“…Hence, caffeine may play a significant role in individual and team sports where concentration and reaction times influence match/training performance. To the contrary, Bottoms et al ( 56 ) showed that 3 mg/kg caffeine intake had no effect on reaction time in athletes while Balko et al ( 57 ) suggested that a larger amount of caffeine may lead to a decrease in visual and auditory reaction times, in turn, increasing reaction time performance. Interestingly, some results are inconsistent with our findings, most likely because the present study enrolled different levels of soccer players than the studies above.…”

Section: Discussionmentioning

confidence: 99%

Moderate-dose caffeine enhances anaerobic performance without altering hydration status

Mor,

Acar,

Alexe

et al. 2024

Front. Nutr.

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The effects of direct nutritional supplements on athletic performance are still being investigated and arouse curiosity. Only one study in the literature was found that investigated the kicking speed performance of futsal players following low-dose caffeine supplementation (3 mg/kg); thus, the question of whether caffeine supplementation improves kicking speed as well as essential physical parameters in soccer players is still controversial. Therefore, the aim of this study was to determine the effect of caffeine supplementation on vertical jump (VJ), sprint, reaction time, balance, change of direction (COD), and ball-kicking speed in soccer players. In a double-blind, cross-over design, nine moderately trained male soccer players (21.11 ± 2.02 years, 171.22 ± 6.14 cm, 71.78 ± 10.02 kg) consumed caffeine (6 mg/kg) or a placebo 60 min before completing balance, reaction time, vertical jump, agility, 30 m sprint, and ball-kicking speed tests. Greater VJ height (p = 0.01) and power (p = 0.08), and faster completion time according to the Illinois Agility Test (p = 0.08) were found following caffeine supplementation compared to placebo. Elapsed time (p = 0.01), average (p = 0.01) time, and the slowest reaction times (p = 0.016) were significantly reduced after caffeine consumption compared to placebo supplementation. Caffeine intake significantly improved VJ, agility, and reaction time (p < 0.05) but did not affect 30 m sprint, ball-kicking speed, balance, and RPE values in soccer players (p > 0.05). Although non-significant, caffeine intake also improved sprint (0.67%) and ball kicking (2.7%) performance percentages. Also, caffeine consumption did not induce dehydration, and the athletes’ body hydration levels were normal. These findings support the use of caffeine supplementation as an effective nutritional ergogenic aid to enhance anaerobic performance, at least for vertical jumps, COD speed, and reaction time, in trained male soccer players.

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“…affect the athlete's performance (Thompson et al, 2020;Brewer et al, 2019). Others, to evidence how the ingestion of certain foods or beverages, training experiences affected personal performance (Badescu et al, 2014;Balko et al, 2020). It also found experiments to evidence how the athlete's equipment can be technologically improved (Cossalter et al, 2012;Burton et al, 2010;Blanco et al, 2014;Haydon et al, 2022;Sajjadi et al, 2022;Ruixin et al, 2020).…”

Section: Use Of Doe In Sport Contextmentioning

confidence: 99%

Applying design of experiments to optimize the performance level of a curling sport team

Antony

Lauterbach

Viles

et al. 2023

TQM

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PurposeThis article presents a novel case study that analyzes the applicability of DoE in the curling sport in order to improve their own performance and the performance of its athletes. Specifically, this study analyzes the most important factors to increase accuracy and precision in the draw game with curlers' opinions. It was decided to use the “Last Stone Draw (LSD)’ as an appropriate play situation.Design/methodology/approachSpecifically, this study analyzes most important factors to increase accuracy and precision in the draw game with curlers opinions from the German Curling association. Three research techniques were used in this study: case study, interviews and a well-designed experiment. The analysis through the use of DoE includes a measurement system analysis, an initial variance test between two players, a screening and a characterization experiment.FindingsThe results obtained from DoE suggest that the factors routine, stress, release, balance, and the previous play situation have a substantial impact on the score of the player's draw game. However, no factor has a statistically significant impact on the average distance to the center of the target. Moreover, the DoE analysis also concludes that the accuracy and precision of the player's performance is not affected equally by all analyzed factors, but they turn into highly significant when examining their relationship to the other factors.Practical implicationsThe findings of this study can be beneficial to other sports events in improving the performance. Moreover, DoE has proved to be an invaluable tool for many people in the German Curling Association in understanding the factors which influence the curlers performance and also factors which do not affect the curlers performance.Originality/valueThis research attempts to contribute to the existing sports management literature by identifying a way in which DoE can be an effective tool in non-manufacturing settings for identification of most important factors which influence the curling performance.

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The influence of different caffeine doses on visual and audial reaction time with different delay from its consumption

Cited by 4 publications

References 29 publications

Caffeine Improves Sprint Time in Simulated Freestyle Swimming Competition but Not the Vertical Jump in Female Swimmers

Caffeine Improves Sprint Time in Simulated Freestyle Swimming Competition but Not the Vertical Jump in Female Swimmers

Moderate-dose caffeine enhances anaerobic performance without altering hydration status

Applying design of experiments to optimize the performance level of a curling sport team

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