Preview

Effects Of Caffeine On High-Intensity Performance

Powerful Essays
Open Document
Open Document
1909 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Effects Of Caffeine On High-Intensity Performance
Nelson Marlborough Institute of Technology
Literature Review
Caffeine & High-Intensity Power Out-Put

Author:

10/16/2013

Diploma in Applied Fitness
Exercise Science

Table of Contents

What are the effects of caffeine on power output during high-intensity performance?

1 Introduction

The effect caffeine (CAFF) elicits on sustained endurance performance is well founded (Costill, Dalsky, & Fink, 1978; Graham, & Spriet, 1991; Trice, & Haymes, 1995; Erickson, Schwarzkoff, & McKenzie, 1987). However, comparatively less research has been conducted on the ergogenic potential of CAFF on anaerobic performance (Wiles, Coleman, Tegerdine, & Swaine, 2006; Crowe, Leicht, & Spinks, 2006). Furthermore, several studies that have been carried out on CAFF ingestion and the response to high-intensity exercise have
…show more content…
(2006). Physiological and cognitive responses to caffeine during repeted, high-intensity exercise . International journal of sport nutrition and exercise metabolism, 528-544.
Doherty, M., Smith, P., Hughes, M., & R.C.R, D. (2004). Caffiene lowers perceptual response and increases power output during high-intensity cycling. Journal of sports science, 637-643.
Erickson, M., Schwarzkoff, R., & McKenzie, R. (1987). Effects of caffeine, fructose and glucose ingestion on muscle glycogen utilization during exercise. Medical science of sports and exercise, 579-583.
Gonzlaez, G. L., Kalow, F. J., & Tang, B. K. (1992). Bio-transformation of caffeine, paraxanthine, theobromine, and theophylline by cDNA-expressed human CYP1A2 and CYP2EA. Pharmacogenetics, 73-77.
Graham, T., & Sprite, L. (1991). Performance and metabolic responses to high caffeine dose during prolonged ecercise. Journal of applied physiology, 2292-2298.
Greer, F., Morales, J., & Coles, M. (2006). Wingate performance and surface EMG frequency variables are not affected by caffeine ingestion. Applied physiology, nutrition, and metabolism,

You May Also Find These Documents Helpful

  • Powerful Essays

    You may list, as students report out, the physiological changes to the respiratory, cardiovascular, neuromuscular, and urinary systems expected during strenuous exercise and as noted in the case of the cyclist, Joe. Students will respond with answers suggesting increases in heart rate, respiration, sweating and muscle fatigue, as well as muscle soreness as normal. However, in reality, in an effort to sustain maximum energy output over extended periods of time, endurance athletes train so that organ systems make the necessary physiological adaptations and are not subject to radical changes in function. Metabolic changes can occur with extensive endurance training in the muscles, hearts and lungs of the athlete, increasing efficiency of system utilization (Thompson, 2000).…

    • 3735 Words
    • 107 Pages
    Powerful Essays
  • Good Essays

    The transition from rest to exercise is associated with a huge upsurge in energy expenditure, due primarily to skeletal muscle contractions (Connett & Sahlin, 1996). Contractions require energy in the form of adenosine tri-phosphate (ATP). ATP stores in muscle are around 8mmol/l and are exhausted within 2s of exercise (Connett & Sahlin, 1996). To continue exercise and maintain ATP homeostasis, ATP production must increase rapidly. The adaptations that occur are tailored to suit the energy requirements of the exercise, therefore the adaptations during marathon running are different to those seen during sprinting. Breakdown of phosphocreatine…

    • 1245 Words
    • 5 Pages
    Good Essays
  • Powerful Essays

    Daphnia Caffeine Experiment

    • 3335 Words
    • 14 Pages

    Caffeine, medically known as trimethylzanthine. Its chemical formula is C8H10N4O2. When in pure form, caffeine is a white crystalline powder that taste very bitter. 1The most common way of acquiring pure caffeine is the process of decaffeinating coffee and tea. Caffeine is found in varying quantities in the seeds, leaves, and fruit of some plants, where it acts as a natural pesticide that paralyzes and kills certain insects…

    • 3335 Words
    • 14 Pages
    Powerful Essays
  • Better Essays

    Lab 2

    • 588 Words
    • 3 Pages

    Supplementation is essential for performance, but is energy drinks or sports drinks the best source of nutrients when replenishing glycogen store? The project that I am conducting is concerning the impact of the consumption of chocolate milk and its effects on protein turnover, muscle glycogen and performance during recovery from endurance exercise (2). The research regarding this material is relevant because it can possibly affect the way individuals replenish their glycogen stores following exercise to further improve their performance and over all fitness.…

    • 588 Words
    • 3 Pages
    Better Essays
  • Good Essays

    The placebo controlled experiment design can be helpful in this study. In order to determine the effect of caffeinated energy drink, the total of twenty athletes will volunteer to participate in it. All the participants will be divided into two groups; ten will drink caffeinated energy drink and other ten will ingest placebo (no caffeine content). The drinks will be served in an opaque bottle to avoid its identification and to make sure that player drink beverages in it entirely. Both the drinks will have same appearance, taste but different caffeine content. Each participate will be required to take part in two trials under the same experimental conditions and standards. The both trials should be performed at the same time of day to avoid the effect of circadian rhythms in the variable. For the study, the participants will ingest caffeinated energy drink according to their body mass and sixty minutes before their performance. The sixty minute timeframe will help the caffeine to absorb completely in the body. The next trial will take place after one week from the first trial as this time period will allow the caffeine to washout from the body. Sixty minutes after the consumption of caffeinated energy drink and placebo drink, their performance will be accessed to find out the outcomes of these drinks on the strength.…

    • 453 Words
    • 2 Pages
    Good Essays
  • Good Essays

    energy dirink lab

    • 1022 Words
    • 5 Pages

    Caffeine, sugars and many more provide energy by stimulating the central nervous system giving the body a sense of alertness. It can raise heart rate and blood pressure while dehydrating the body.…

    • 1022 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Caffeine is a stimulant which increases cardiac arrhythmia (improper heart rate) by increasing stress hormone (e.g. adrenaline) secretions. It also increases blood pressure which contributes to the blockage of receptors such as adenosine A1 and A2 receptors. The caffeine blocking receptors also blocks vasodilatory function, in which blood vessels become less dilated. Hence wise, caffeine is also known as a mild stimulant of the central nervous system and also stimulates the cardiac muscle and smooth muscles. Caffeine increases levels of neurotransmitters such as norepinephrine has been shown to increase the metabolic rate.…

    • 1281 Words
    • 4 Pages
    Good Essays
  • Good Essays

    3. Caffeinated drinks have been used to increase power and` stamina if taken at the right dosages, “the ergogenic dose of caffeine is fairly low (2-6 mg/kg) taken 30 to 60 minutes before activity; higher doses can be dangerous, toxic or even lethal” (Buell).…

    • 1536 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Creatine Research Paper

    • 510 Words
    • 3 Pages

    Creatine in the form of phosphocreatine is an important store of energy in muscle cells. During intense exercise lasting around half a minute, phosphocreatine is broken down to creatine and phosphate, and the energy released is used to regenerate the primary source of energy, adenosine triphosphate . Output power drops as phosphocreatine becomes depleted, because ATP cannot be regenerated fast enough to meet the demand of the exercise. It follows that a bigger store of phosphocreatine in muscle should reduce fatigue during sprinting. Extra creatine in the muscle may also increase the rate of regeneration of phosphocreatine following sprints, which should mean less fatigue with repeated bursts of activity in training or in many sport…

    • 510 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Gatorade

    • 602 Words
    • 3 Pages

    (4) Subjects preformed a treadmill exercise. At peak exercise heart rate and blood pressure were taken, then again during the passive recovery phase. The main finding of this study was that drinking Gatorade twenty minutes before a bout of exercise delays fatigue and improves performance. (4) Even with Olympic class sailors Gatorade was beneficial in that it helped maintain hydration status throughout a bout of exercise.…

    • 602 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Caffeine is a natural stimulant that nature, acts as a powerful insecticide used by plants to help them deter various insects from eating them. It is commonly found in coffee beans and tea leaves, as well as cocoa beans as well. Experts are now able to isolate this potent stimulant, and not only add it to various health supplements, but also offer it in its raw and natural state. It is especially popular amongst athletes and bodybuilders for the following…

    • 603 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Wilmore, J., Costill, D., & Kenney, W. (2008). Physiology of sport and exercise (4th ed.). Human Kinetics, Champaign, IL.…

    • 2044 Words
    • 9 Pages
    Powerful Essays
  • Powerful Essays

    Institute of Medicine (US) Committee on Military Nutrition Research. Pharmacology of Caffeine. Caffeine for the Sustainment of Mental Task Performance: Formulations for Military Operations. 1:25-31, 2001.…

    • 1465 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    Un-Prescribed Study Drugs

    • 1204 Words
    • 5 Pages

    Caffeine can be consumed through coffee, tea, energy drinks, or caffeine supplements. Regardless of the form in which it is taken, caffeine has some effect on cognition. For example, a study conducted by Warburton (1995) found that caffeine intake results in increased alertness, concentration, and memory. Admittedly, there are parallels between the effects of caffeine and study drugs in relation to improved academic performance. It is understandable why critics present this argument because if both are influencing cognitive abilities to a certain extent, then both should be treated equally. However, a line must be drawn. On the surface, the effects of caffeine and ADHD/ADD medications may seem similar, but on a neurological level, the differences are significant. As previously mentioned, study drugs bind to dopamine and epinephrine receptors whereas caffeine binds to adenosine receptors (Doyle et al, 2010). This can influence how long the effect of the stimulants will impact the body. For example, the effects of caffeine can last up to six hours (University Health Service. (n.d.)) in the body whereas Adderall can last up to 12 hours in the body (Brams, Moon Pucci & López, 2010). The differences are significant and it is too far-fetched for the two to be compared. A stimulant that is in the morning cup of coffee or tea should not be compared to medications that are legally prescribed to patients with neurobehavioural…

    • 1204 Words
    • 5 Pages
    Good Essays
  • Better Essays

    Caffeine is the most widely used drug in the world and its usage results in dependency among many users. There are benefits to caffeine as it may have positive effects on learning, but there are also negative effects on physical health. It is well known that many college students ingest caffeine prior to studying, writing papers, and taking exams. Caffeine is known to increase alertness, improve mood, and enhance cognitive performance. Increased alertness and concentration allows for easier retention and understanding of material, and can result in increased academic success. This information leads a person to wonder, is academic performance related to amount of caffeine consumption?…

    • 1741 Words
    • 7 Pages
    Better Essays

Related Topics