scholarly journals The use of energy drinks in sport: perceived ergogenicity and side effects in male and female athletes

2014 ◽  
Vol 112 (9) ◽  
pp. 1494-1502 ◽  
Author(s):  
Juan J. Salinero ◽  
Beatriz Lara ◽  
Javier Abian-Vicen ◽  
Cristina Gonzalez-Millán ◽  
Francisco Areces ◽  
...  
Keyword(s):  
Side Effects ◽  
Female Athletes ◽  
Muscle Power ◽  
Training Session ◽  
Energy Drinks ◽  
Energy Drink ◽  
Double Blind ◽  
Male And Female ◽  
Adverse Side Effects ◽  
Physiological Variables

The use of caffeine containing energy drinks has dramatically increased in the last few years, especially in the sport context because of its reported ergogenic effect. The ingestion of low to moderate doses of caffeinated energy drinks has been associated with adverse side effects such as insomnia or increased nervousness. The aim of the present study was to assess psycho-physiological changes and the prevalence of side effects resulting from the ingestion of 3 mg caffeine/kg body mass in the form of an energy drink. In a double-blind and placebo controlled experimental design, ninety experienced and low-caffeine-consuming athletes (fifty-three male and thirty-seven female) in two different sessions were provided with an energy drink that contained 3 mg/kg of caffeine or the same decaffeinated energy drink (placebo; 0 mg/kg). At 60 min after the ingestion of the energy drink, participants completed a training session. The effects of ingestion of these beverages on psycho-physiological variables during exercise and the rate of adverse side effects were measured using questionnaires. The caffeinated energy drink increased self-perceived muscle power during exercise compared with the placebo beverage (6·41 (sd1·7)v.5·66 (sd1·51);P= 0·001). Moreover, the energy drink produced a higher prevalence of side effects such as insomnia (31·2v.10·4 %;P< 0·001), nervousness (13·2v.0 %;P= 0·002) and activeness (16·9v.3·9 %;P= 0·007) than the placebo energy drink. There were no sex differences in the incidence of side effects (P>0·05). The ingestion of an energy drink with 3 mg/kg of caffeine increased the prevalence of side effects. The presence of these side effects was similar between male and female participants.

scholarly journals Energy drink - the prevalence of consumption and awareness regarding its associated potential health problems among commercial bus drivers in Ho, Ghana

2020 ◽  
Author(s):  
Emmanuella Yayra Saku ◽  
Peter Nuro-Ameyaw ◽  
Priscilla Cecilia Amenya ◽  
Fidelis Mawunyo Kpodo ◽  
Paul Esua Amoafo ◽  
...  
Keyword(s):  
Side Effects ◽  
Public Health Problem ◽  
Energy Drinks ◽  
Energy Drink ◽  
Health Problems ◽  
Bus Drivers ◽  
Long Distance ◽  
Potential Health ◽  
Poor Knowledge ◽  
Energy Drink Consumption

Abstract Background Consumption of energy drinks has become an escalating global public health problem. The work schedule and irregular sleeping habits of commercial bus drivers make them highly susceptible to getting fatigued, hence most of them consume energy drinks as a fatigue management strategy. However, consumption of energy drinks produces numerous psychomotor side effects that if consumed among drivers puts the traveling public in danger of road accidents. This study sought to assess the prevalence of energy drink consumption and awareness of associated potential health problems among commercial long-distance bus drivers operating from the Ho municipality. Methods This was a cross-sectional study involving 132 participants who completed a structured questionnaire on the participants' socio-demographic characteristics, frequency of consumption and reasons for consumption. It also included questions to assess the knowledge of the ingredients and side effects of energy drinks. Results A majority (62.1%) of the drivers had more than 10 years of commercial driving experience. A 75% energy drink consumption prevalence was recorded with driving performance enhancement (78.8%) as the predominant reason for consumption. 7 - 10 bottles per week were consumed by most (32.2%) of the drivers with the most consumed brand being Rush energy drink (54.5%). Also, 72.0% had poor knowledge of the side effects linked with energy drink intake likewise the ingredients in them. Conclusion Energy drinks were consumed by the majority of the drivers at the Ho main bus terminal of which most of the drivers had poor knowledge of the potential health problems linked with the consumption of these drinks. The consumption of energy drinks was observed to be higher among the drivers with lower education levels, higher monthly income and those who worked long hours in a day. The Ghana National Road Safety Commission (GNRC) in collaboration with other private road transport unions in Ghana should organize regular seminars for commercial bus drivers on the potential dangers and effects associated with energy drink consumption.

scholarly journals Energy drink: the consumption prevalence, and awareness of its potential health implications among commercial drivers in the Ho Municipality of Ghana

2020 ◽  
Author(s):  
Emmanuella Yayra Saku ◽  
Peter Nuro-Ameyaw ◽  
Priscilla Cecilia Amenya ◽  
Fidelis Mawunyo Kpodo ◽  
Paul Esua Amoafo ◽  
...  
Keyword(s):  
Side Effects ◽  
Public Health Problem ◽  
Energy Drinks ◽  
Energy Drink ◽  
Health Problems ◽  
Bus Drivers ◽  
Long Distance ◽  
Potential Health ◽  
Poor Knowledge ◽  
Energy Drink Consumption

Abstract Background Consumption of energy drinks has become an escalating global public health problem. The work schedule and irregular sleeping habits of commercial bus drivers make them highly susceptible to getting fatigued, hence most of them consume energy drinks as a fatigue management strategy. However, consumption of energy drinks produces numerous psychomotor side effects that if consumed among drivers puts the traveling public in danger of road accidents. This study sought to assess the prevalence of energy drink consumption and awareness of associated potential health problems among commercial long-distance bus drivers operating from the Ho municipality. Methods This was a cross-sectional study involving 132 participants who completed a structured questionnaire on the participants' socio-demographic characteristics, frequency of consumption and reasons for consumption. It also included questions to assess the knowledge of the ingredients and side effects of energy drinks. Results A majority (62.1%) of the drivers had more than 10 years of commercial driving experience. A 75% energy drink consumption prevalence was recorded with driving performance enhancement (78.8%) as the predominant reason for consumption. 7 - 10 bottles per week were consumed by most (32.2%) of the drivers with the most consumed brand being Rush energy drink (54.5%). Also, 72.0% had poor knowledge of the side effects linked with energy drink intake likewise the ingredients in them. Conclusion Energy drinks were consumed by the majority of the drivers at the Ho main bus terminal of which most of the drivers had poor knowledge of the potential health problems linked with the consumption of these drinks. The consumption of energy drinks was observed to be higher among the drivers with lower education levels, higher monthly income and those who worked long hours in a day. The Ghana National Road Safety Commission (GNRC) in collaboration with other private road transport unions in Ghana should organize regular seminars for commercial bus drivers on the potential dangers and effects associated with energy drink consumption.

scholarly journals Double-Blind Cross-Over Placebo Controlled Study of Flunarizine in Patients With Therapy Resistant Epilepsy

1989 ◽  
Vol 16 (2) ◽  
pp. 187-190 ◽  
Author(s):  
E. Starreveld ◽  
F. de Beukelaar ◽  
A.F. Wilson ◽  
D.R. McLean ◽  
Helen P. Findlay
Keyword(s):  
Placebo Group ◽  
Depressive Symptoms ◽  
Side Effects ◽  
Seizure Frequency ◽  
Controlled Study ◽  
Double Blind ◽  
Adverse Side Effects ◽  
Generalized Seizures ◽  
Daily Dose ◽  
The Mean

ABSTRACT:Twenty-five patients with long-standing therapy resistant epilepsy were studied in an eight-month double- blind cross-over add-on trial with a daily dose of 15 mg flunarizine. In five patients the seizure frequency decreased 50% or more. The mean seizure frequency reduction in the patients on flunarizine was 35%. Particularly the control of secondary generalized seizures improved. Flunarizine did not significantly alter the plasma levels of the regular anticonvulsant drugs. Minimal adverse side effects were reported equally in the flunarizine and the placebo group. In three patients depressive symptoms improved and two patients became free of postictal headaches. Flunarizine appears to be a safe adjuvant anticonvulsant.

scholarly journals A randomized, placebo-controlled crossover trial of a decaffeinated energy drink shows no significant acute effect on mental energy

2020 ◽  
Vol 111 (3) ◽  
pp. 719-727
Author(s):  
Alicia Garcia-Alvarez ◽  
Corbin A Cunningham ◽  
Byron Mui ◽  
Lia Penn ◽  
Erin M Spaulding ◽  
...  
Keyword(s):  
Reaction Time ◽  
Visual Information ◽  
Crossover Trial ◽  
Flanker Task ◽  
Energy Levels ◽  
Energy Drinks ◽  
Energy Drink ◽  
Cognitive Measures ◽  
Double Blind ◽  
Placebo Drink

ABSTRACT Background “Energy drinks” are heavily marketed to the general public, across the age spectrum. The efficacy of decaffeinated energy drinks in enhancing subjective feelings of energy (s-energy) is controversial. Objective The authors sought to test the efficacy of the caffeine-free version of a popular energy drink compared with a placebo drink. Methods This study was a randomized, double-blind, placebo-controlled, crossover trial in 223 healthy men and women aged 18–70 y with intention-to-treat and completers analysis. Participants were randomly assigned to consumption of either the decaffeinated energy drink or a placebo drink on testing day 1, and the other drink a week later. A battery of computer-based mood and cognitive tests to assess s-energy was conducted at baseline and at 0.5, 2.5, and 5 h post-ingestion. The main outcome measures were 1) mood, which was assessed by using a General Status Check Scale and the Profile of Mood States 2nd edition brief form, and 2) cognitive measures, including the N-back task (reaction time and accuracy), Reaction Time test, Flanker task (distraction avoidance), and Rapid Visual Information Processing test. Results No statistically significant or meaningful benefits were observed for any outcome measure, including mood and cognitive measures. Analyses of mean differences, slopes, and median differences were consistent. Conclusions No differences were detected across a range of mood/cognitive/behavioral/s-energy–level tests after consumption of the energy drink compared with a placebo drink in this diverse sample of adults. Thus, we found strong evidence that the energy drink is not efficacious in enhancing s-energy levels, nor any related cognitive or behavioral variables measured. In light of federal regulations, these findings suggest that labeling and marketing of some products which claim to provide these benefits may be unsubstantiated. This trial was registered at www.clinicaltrials.gov as NCT02727920.

ADVERSE SIDE EFFECTS OF METHYLPHENIDATE AMONG MENTALLY RETARDED CHILDREN WITH ADHD

PEDIATRICS ◽  
1991 ◽  
Vol 88 (5) ◽  
pp. A64-A64
Author(s):  
Benjamin L. Handen ◽  
Heidi Feldman ◽  
Amy Gosling ◽  
Anna Marie Breaux ◽  
Sarah McAuliffe
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Side Effects ◽  
Attention Deficit ◽  
Mentally Retarded ◽  
Activity Level ◽  
Double Blind Study ◽  
Double Blind ◽  
Adverse Side Effects ◽  
Hyperactivity Disorder ◽  
Mentally Retarded Children

The adverse side effects of methylphenidate were evaluated in 27 children with attention deficit hyperactivity disorder and IQs of 48 to 74 who participated in a double-blind study of two doses of methylphenidate and placebo. A checklist of 13 side effects, generated from the Physician's Desk Reference, was completed by teachers. Rates of irritability, anxiety, moodiness, and activity level decreased significantly when comparing the placebo with drug conditions. However, medication for six (22%) of the children was discontinued because of the appearance of motor tics (three children) and severe social withdrawal (two children), suggesting that mentally retarded children with attention deficit hyperactivity disorder may be at a greater risk for developing these side effects than the nonretarded population.

Abstract 18257: Cardiovascular Response to Energy Drink Consumption in Healthy Adults

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Anna Svatikova ◽  
Naima Covassin ◽  
Krishen Somers ◽  
Filip Soucek ◽  
Tomas Kara ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Cardiovascular Response ◽  
Energy Drinks ◽  
Energy Drink ◽  
Healthy Adults ◽  
Double Blind ◽  
Resting Blood Pressure ◽  
Energy Drink Consumption ◽  
Placebo Drink

Introduction: An increasing number of healthy adults consume energy drinks to enhance their physical and mental performance. Energy drinks contain caffeine and multiple other “natural” stimulants and their combined effects on cardiac hemodynamics in healthy individuals are unclear. Hypothesis: We hypothesized that drinking a commercially available energy drink, Rockstar , compared to a placebo drink, increases resting blood pressure and heart rate in healthy adults, and these increases would be further accentuated by stress conditions. Methods: We enrolled 25 healthy, normotensive subjects (14 males), aged 29±1 years, with body mass index 24.5±1 kg/m 2 , in a randomized, double-blind, placebo-controlled, crossover study. Each subject consumed a placebo drink and a commercially available Rockstar energy drink (473 ml), in random order on two separate study days. Blood pressure and heart rate responses were recorded and compared before and 30 minutes after drink consumption, both at rest and then in response to physical, mental and cold stressors. Results: The Rockstar energy drink induced a 6±1% increase in resting systolic blood pressure, compared to 3±1% with the placebo drink (P=0.0078). Diastolic blood pressure increased by 7±1% vs 0±1% with the placebo drink (P=0.0007; Figure 1). Heart rate increased similarly in both groups, by 5±2% in the energy drink group vs. 7±2% in the placebo group. Blood pressure and heart rate increases during the stress stimuli (sustained handgrip, mental stress and cold stress) did not differ between energy drink and placebo. Conclusions: Drinking a commercially available Rockstar energy drink significantly increases resting blood pressure in young healthy adults. Blood pressure increases are not further accentuated by exercise, mental or cold pressor stress stimuli. These hemodynamic changes induced by energy drink consumption could predispose to cardiovascular events.

scholarly journals Energy drinks – consumption and awareness among students of Medical University of Lublin

2016 ◽  
Vol 29 (4) ◽  
pp. 190-194
Author(s):  
Piotr Cencek ◽  
Ewelina Wawryk-Gawda ◽  
Patryk Samborski ◽  
Barbara Jodlowska-Jedrych
Keyword(s):  
Side Effects ◽  
Energy Drinks ◽  
Energy Drink ◽  
Mechanisms Of Action ◽  
Health It ◽  
Daily Consumption ◽  
Time Consumption ◽  
Energy Drink Consumption ◽  
Other Substances ◽  
Medical University

Abstract Energy drinks (ED), containing caffeine, taurine and another substances, are one of the more frequently used legal stimulants. Still, because these can endanger consumers’ health, it is thought that their marketing should be legally controlled. In our study, we analyzed the frequency of energy drink consumption, as well as the knowledge held about these drinks among medicine and dentistry students of the Medical University of Lublin. In the study, 131 students participated, and the study was done in the form of a survey. The results of this indicate that 81 students (61.83%) declared a daily consumption, and most respondents (78.48%) stated at least a one time consumption of 250 to 749 ml of energy drink. What is more, 26.25% of respondents combined ED with other substances, most frequently with coffee and alcohol. Regarding knowledge of ED effects, contents and side effects, more males than females actively sought and held this information. Furthermore, more than half of all respondents believed that the availability of EDs in Poland should be limited. Our study showed that the awareness of the effects and mechanisms of action of EDs, among the questioned students is relatively high. Nevertheless, they frequently consume EDs and combine these with other stimulants.

scholarly journals Energy drink - the prevalence of consumption and awareness regarding its associated potential health problems among commercial bus drivers in Ho, Ghana

2020 ◽  
Author(s):  
Emmanuella Yayra Saku ◽  
Peter Nuro-Ameyaw ◽  
Priscilla Cecilia Amenya ◽  
Fidelis Mawunyo Kpodo ◽  
Paul Esua Amoafo ◽  
...  
Keyword(s):  
Side Effects ◽  
Public Health Problem ◽  
Energy Drinks ◽  
Energy Drink ◽  
Health Problems ◽  
Bus Drivers ◽  
Long Distance ◽  
Potential Health ◽  
Poor Knowledge ◽  
Energy Drink Consumption

Abstract Background Consumption of energy drinks has become an escalating global public health problem. The work schedule and irregular sleeping habits of commercial bus drivers make them highly susceptible to getting fatigued, hence most of them consume energy drinks as a fatigue management strategy. However, consumption of energy drinks produces numerous psychomotor side effects that if consumed among drivers puts the traveling public in danger of road accidents. This study sought to assess the prevalence of energy drink consumption and awareness of associated potential health problems among commercial long-distance bus drivers operating from the Ho municipality. Methods This was a cross-sectional study involving 132 participants who completed a structured questionnaire on the participants' socio-demographic characteristics, frequency of consumption and reasons for consumption. It also included questions to assess the knowledge of the ingredients and side effects of energy drinks. Results A majority (62.1%) of the drivers had more than 10 years of commercial driving experience. A 75% energy drink consumption prevalence was recorded with driving performance enhancement (78.8%) as the predominant reason for consumption. 7 - 10 bottles per week were consumed by most (32.2%) of the drivers with the most consumed brand being Rush energy drink (54.5%). Also, 72.0% had poor knowledge of the side effects linked with energy drink intake likewise the ingredients in them. Conclusion Energy drinks were consumed by the majority of the drivers at the Ho main bus terminal of which most of the drivers had poor knowledge of the potential health problems linked with the consumption of these drinks. The consumption of energy drinks was observed to be higher among the drivers with lower education levels, higher monthly income and those who worked long hours in a day. The Ghana National Road Safety Commission (GNRC) in collaboration with other private road transport unions in Ghana should organize regular seminars for commercial bus drivers on the potential dangers and effects associated with energy drink consumption.

scholarly journals Prevalence and Side Effects of Energy Drink Consumption among Medical Students at Umm Al-Qura University, Saudi Arabia

2013 ◽  
Vol 1 (3) ◽  
pp. 104-108 ◽  
Author(s):  
Naif A. Bawazeer ◽  
Najmah A. AlSobahi
Keyword(s):  
Medical Students ◽  
Side Effects ◽  
Side Effect ◽  
Public Awareness ◽  
Energy Drinks ◽  
Energy Drink ◽  
Common Side Effect ◽  
Energy Drink Consumption ◽  
Lack Of Sleep ◽  
The University

Background: Energy drinks are freely available at markets and shops on the university campus without regulation or proper education regarding its side effects. The caffeine amount within energy drinks is high and could become an addictive substance or cause intoxication. Therefore, this study aims to assess the prevalence of energy drink consumption and its reported side effects among medical students. Methods: A total number of 257 medical students from Umm Al-Qura University completed a questionnaire about energy drinks that was administrated electronically from September through November, 2012. Results: Out of the 257 participants, 27.2% (n=70) reported consu­ming at least one energy drink per month, with 61.5% (n=48) being males. Males consume significantly more energy drinks than females (p=0.0001). The students consumed energy drinks to get energy in general (32.8%) and while studying for exams or finishing a project (31.4%). Other reasons given include, lack of sleep (12.8%), just to be like friends (11.4%), or driving (8.5%). Heart palpitations are the most common side effect in our sample (20%), followed by insomnia (10%), headache and tremors (5.7%), nausea and vomiting (4.2%) and nervousness (2.8%). Conclusion: Energy drinks consumption is common practice among medical students and the main reason cited for consumption is the need for energy during general activities. Approximately one-third of the consumers manifested some side effect after consumption. We recommend the need to create public awareness about energy drinks. Further studies are recommended to assess the educational level of students consuming energy drinks, about the dangerous side effects.

scholarly journals A rare adverse effect of energy drinks: Non-ST-elevation myocardial infarction

2018 ◽  
Vol 25 (4) ◽  
pp. 229-231
Author(s):  
Sevcan Levent ◽  
Sadiye Yolcu
Keyword(s):  
Myocardial Infarction ◽  
Adverse Effect ◽  
Chest Pain ◽  
Side Effects ◽  
Cardiac Catheterization ◽  
Case Reports ◽  
Energy Drinks ◽  
Energy Drink ◽  
St Elevation Myocardial Infarction ◽  
St Elevation

Energy drinks are increasingly used worldwide inspite of their side effects. These drinks has been linked to case reports that present with ST-elevation myocardial infarction, but in this case we report a case that presents with non-ST-elevation myocardial infarction after energy drink intake. The patient complained about chest pain after drinking two bottles of energy drink and vodka. Cardiac catheterization subsequently confirmed left anterior descending occlusion in this patient.

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