Effects of time-of-day and caffeine ingestion on mood states, simple reaction time, and short-term maximal performance in elite judoists

Souissi, Makram; Abedelmalek, Salma; Chtourou, Hamdi; Boussita, Akram; Hakim, Ahmad; Sahnoun, Zouheir

doi:10.1080/09291016.2013.780700

Cited by 30 publications

(25 citation statements)

References 44 publications

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“…SDS had little long-term caffeine effect and improved only focus in terms of mood. However, SDS consumption improved both physical reaction time and the time to complete the Stroop test, which has been previously shown (Patat et al 2000;Haskell et al 2005;Adan and Serra-Grabulosa 2010;Dixit et al 2012;Souissi et al 2012Souissi et al , 2013Pilli et al 2013;Santos et al 2014). Those who consumed SDS had the poorest performance on the Stroop test (time and accuracy) compared to the other groups and auditory recall scores were significantly worse at each time period.…”

Section: Discussionsupporting

confidence: 57%

“…Additionally, caffeine is credited with decreasing fatigue (Loke 1988;Smit et al 2004;Haskell et al 2005;Arciero and Ormsbee 2009), increasing happiness (Smit et al 2004;Arciero and Ormsbee. 2009), increasing alertness (Smit et al 2004;Haskell et al 2005;Rogers2008 ), and increasing vigor (Arciero and Ormsbee 2009;Souissi et al 2013Souissi et al , 2012. Caffeine has also been suggested to improve reaction time (Haskell et al 2005;Adan and Serra-Grabulosa, 2010;Souissi et al 2013Souissi et al , 2012Souissi et al et al 2013Santos et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…2009), increasing alertness (Smit et al 2004;Haskell et al 2005;Rogers2008 ), and increasing vigor (Arciero and Ormsbee 2009;Souissi et al 2013Souissi et al , 2012. Caffeine has also been suggested to improve reaction time (Haskell et al 2005;Adan and Serra-Grabulosa, 2010;Souissi et al 2013Souissi et al , 2012Souissi et al et al 2013Santos et al 2014). Other physiological effects of caffeine are not as clear cut.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Various Caffeine Vehicles on Mood and Cognitive, Neurological and Physiological Functions over Five Hours

Paulus

Roth

Titus

et al. 2015

OJS

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Although college students’ caffeine consumption has increased over the last decade, studies have not yet determined the time frame in which caffeine exerts its effects nor the impact of the vehicle by which caffeine is consumed. Sixty college students were randomly divided into one placebo (flour) and three caffeine treatment groups: 5-Hour Energy ®, Starbucks DoubleShot ®, or caffeine powder; all dosed at 3 mg caffeine/kg of body weight. A battery of tests was performed prior to dosing and repeated 2.5 and 5 hours post treatment. Mood was self-reported on a scale of 1-100 for happiness, alertness and focus. Cognitive function was assessed by Stroop and memory tests. Reaction time, heart rate, blood glucose, and electroencephalogram were recorded. All initial measurements across groups and group baselines vs 2.5 and 5 hour results were analyzed by ANOVA followed, when indicated, by post hoc t-tests at 95% confidence levels and only significant results are reported. All caffeine groups had elevations in mood and faster reaction times at 2.5 hours (most effects sustained for 5 hours). The 5-Hour Energy® group rated alertness higher than other caffeine treatments, and was the only group to demonstrate decreases in alpha waves, memory improvements, and impaired glucose homeostasis. All caffeine groups had improved cognition with decreased Stroop test time and the caffeine powder and 5-Hour Energy ® groups had improved Stroop test accuracy at 2.5 hours. The 5-Hour Energy shot ® had the greatest proportion of sustained caffeine effects across test parameters.

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Section: Discussionsupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of Various Caffeine Vehicles on Mood and Cognitive, Neurological and Physiological Functions over Five Hours

Paulus

Roth

Titus

et al. 2015

OJS

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“…Mora-Rodríguez and colleagues [ 81 ] demonstrated that morning caffeine ingestion increased performance to that of an evening resistance exercise session. In a later study, the same research group observed that caffeine enhanced performance in the morning but not in the evening hours [ 82 ], with similar results observed by Souissi et al [ 84 ]. Interestingly, Mora-Rodríguez and colleagues [ 82 ] reported a higher incidence of side effects upon p.m. caffeine ingestion.…”

Section: What Else Do We Need To Know About Caffeine In Sport?supporting

confidence: 68%

Caffeine and Exercise: What Next?

2019

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Caffeine is a widely utilized performance-enhancing supplement used by athletes and non-athletes alike. In recent years, a number of meta-analyses have demonstrated that caffeine’s ergogenic effects on exercise performance are well-established and well-replicated, appearing consistent across a broad range of exercise modalities. As such, it is clear that caffeine is an ergogenic aid—but can we further explore the context of this ergogenic aid in order to better inform practice? We propose that future research should aim to better understand the nuances of caffeine use within sport and exercise. Here, we propose a number of areas for exploration within future caffeine research. These include an understanding of the effects of training status, habitual caffeine use, time of day, age, and sex on caffeine ergogenicity, as well as further insight into the modifying effects of genotype. We also propose that a better understanding of the wider, non-direct effects of caffeine on exercise, such as how it modifies sleep, anxiety, and post-exercise recovery, will ensure athletes can maximize the performance benefits of caffeine supplementation during both training and competition. Whilst not exhaustive, we hope that the questions provided within this manuscript will prompt researchers to explore areas with the potential to have a large impact on caffeine use in the future.

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“…Examining the short- and long-term effects of positive and negative consequences of caffeine use for physical and mental health is also important. For example, caffeine has a known stimulant effect (Barry et al 2008 ), and its consumption results in enhanced alertness with faster reaction time (Souissi et al 2013 ). Caffeine concentration in the body peaks at between 45 and 60 minutes after ingestion (Krieger et al 2016 ).…”

mentioning

confidence: 99%

Why Do You Drink Caffeine? The Development of the Motives for Caffeine Consumption Questionnaire (MCCQ) and Its Relationship with Gender, Age and the Types of Caffeinated Beverages

Ágoston

Király

Griffiths

et al. 2017

Int J Ment Health Addiction

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Caffeine is the most popular psychoactive substance that is consumed worldwide. As motives influence behavior, investigation of the motivational background of caffeine consumption should help provide a better understanding of the popularity of caffeinated products. The present study aimed (i) to explore and operationalize the motives of caffeine consumption and (ii) to reveal possible differences in the motives regarding gender, age and the type of caffeinated products consumed. Motives for caffeine consumption were collected from regular caffeine consumers (N = 26) and were informed by a review of the relevant literature. Following this, a cross-sectional study was conducted on a convenience sample of Hungarian university students and working adults (N = 598). The participants completed the Motives for Caffeine Consumption Questionnaire and the Caffeine Consumption Questionnaire. Six motivational factors were identified: Alertness, Habit, Mood, Social, Taste and Symptom Management. Women had higher scores on Habit, Social, Taste and Symptom Management. Younger participants had higher scores on Alertness than the older group, and the older group had higher scores on Habit and Symptom Management. Five types of caffeine users were identified. Those who consumed (i) coffee, (ii) tea, (iii) energy drinks, (iv) coffee and tea and (v) mixed drinks. Several differences between the five groups were revealed across all motives except for Taste. The present study developed a robust psychometric instrument for assessing caffeine consumption motives. The factors varied in importance in relation to gender, age and caffeine consumption habits.

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Effects of time-of-day and caffeine ingestion on mood states, simple reaction time, and short-term maximal performance in elite judoists

Cited by 30 publications

References 44 publications

Impact of Various Caffeine Vehicles on Mood and Cognitive, Neurological and Physiological Functions over Five Hours

Impact of Various Caffeine Vehicles on Mood and Cognitive, Neurological and Physiological Functions over Five Hours

Caffeine and Exercise: What Next?

Why Do You Drink Caffeine? The Development of the Motives for Caffeine Consumption Questionnaire (MCCQ) and Its Relationship with Gender, Age and the Types of Caffeinated Beverages

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