Caffeine And Exercise Performance Analysis

Caffeine is a natural central nervous system stimulant. It is considered a drug that if is overly consumed can be dangerous for one’s body. Caffeine is a temporary energy booster that improves mood and alertness for most people, mainly athletes. It can be an eye-opener in the morning, could be drunk or eaten on practice brakes, and for some, it just became a habit that they cannot go through a day without a cup of coffee before exiting their doorways. Furthermore, it requires good health and stamina for athletes to perform throughout the game, particularly the one in teams,

Thesis: Caffeine can have many different effects on the body depending on the amount of consumption.

The world’s most popular drug is legal, inexpensive, and believed to amplify workouts. It supposedly motivates athletes and helps them stay alert and focused while also boosting physical endurance by twenty to fifty percent. This stimulant is found naturally in sixty-three plants and is consumed by eighty percent of Americans. This white, bitter, crystalline substance is known as caffeine, and is commonly consumed in efforts to enhance athletic ability (http://gopher1.bu.edu/COHIS/substance/caffeine/about.htm).

The primary literature article is titled, Dose–response study of caffeine effects on cerebral functional activity with a specific focus on dependence. This article consists of many parts including an abstract, introduction, materials and methods, and results. The articles aim is to explain the physiological functions of caffeine and how it affects the brain. The language used in this article is very specific and scientific. It consists of very precise word choice and both quantitative and qualitative information. In the introduction, this article mentions that the average daily caffeine consumption for all adult consumers and from all sources reaches 2.4–4.0 mg/kg for a 60–70 kg subject in the United States, UK and Canada (Nehlig and Boyet, 2000). This excerpt from the

Shukitt, Speckman, & Tulley, 2002). Hodgson et al.’s (2013) participants consisted of eight qualifying cyclists who trained three times per week, for more than 90 minutes. A preliminary trial was assessed before the experiment started. In that trial, the cyclist’s maximal oxygen uptake and power was assessed. Following this, each cyclist drank beverages containing caffeine, placebo, coffee, and decaffeinated coffee, each on different days. One hour after consumption, they completed a 30-minute steady state cycle exercise followed by a 45-minute energy based time trial exercise. Blood samples and respiratory breath samples, and heart rate were recorded during the exercise session. The main finding of this study was that a cup of caffeinated beverage helps improve endurance during exercise. Compared to placebo and decaffeinated drinks, there was a significant dopamine increase in the athlete’s brain. Therefore drinking coffee during workout can be beneficial as it enhances one’s performance. In Lieberman et al.’s (2002) study, moderate

Caffeine disguises as adenosine in the brain. Adenosine tells your body to slow down when it’s time to sleep. The caffeine gets into the bloodstream and stimulates the central nervous system. Way over a week caffeine causes a person to become more alert, react faster, and feel like the person is not working as hard. Caffeine can also cause reduced brain growth. It causes someone’s mind to race and makes it hard for them to concentrate. A person does not get a burst of energy directly from caffeine. It blocks the message from your brain to your body that you are tired. Caffeine blocks off the want to sleep and rest. The result of this is the rise of alertness and wakefulness caused by the release of dopamine and glutamate. Caffeine in a person's body modifies the brain's capability to make good, healthy choices by moving function to the lower part of the brain from the upper part of the brain. Concerning other parts of the body, caffeine can cause both high heart rate and blood pressure. Caffeine can impact

Caffeine is considered to be the most consumed psycho pick-me-up and is present in more than sixty plants. It is part of our everyday consumptions, such as coffee, tea, energy drinks and even chocolate even its small amount, around 90% of individuals use caffeine in one form or another. Caffeine has many similar traits with more of the bigger drugs such as cocaine, amphetamines and even heroin. The thing is that caffeine uses similar biochemical mechanisms as the other drugs which in fact are known to stimulate the brain function. Caffeine is also known as 1, 3, 7-trimethylxanthine, and derives from a methylxanthine group and includes theophylline and theobromine (5). Methylxanthine inhibits the neurotransmitter adenosine by stimulating by beta 1 and beta 2 receptors from the release of catecholamine’s. Physiologically, caffeine impedes the binding of adenosine to its receptors in the cell membranes which causes a mild dilation of blood vessels and increases in blood pressure, metabolic rate, and urine production. It occurs naturally in the leaves, fruits, and seeds of numerous plant species, most noticed in coffee and cocoa beans, tea leaves, kola nuts, and guarana. Caffeine can be produced synthetically, but when added to food, it is most commonly derived as a byproduct of decaffeination (5). Caffeine is a substance widely used, not only for is ability to promote wakefulness and to stimulate the central nervous system, but to also begin an effect after 15 minutes of

Caffeine is one of the most prevalent drugs consumed around the world, and is frequently used by athletes in efforts to enhance their performance. It is defined by the Medical Dictionary as “A bitter white alkaloid, C8H10N4O2 that stimulates the central nervous system and body metabolism” (2010). Some believe that increasing their caffeine intake will then improve their energy and endurance levels during long-term sporting events such as running, biking, or swimming. Caffeine is found in an assortment of foods and drinks including but not limited to coffee, tea, cokes and cola products, chocolate and energy drinks. Caffeine can also be found in some over-the-counter medications.

One drug that used more than most for not only athletes but for those that need to feel a pick me up in the middle of the day. This drug is can be traced back thousands of years as a stimulant before they knew even what it was. Today, this drug is used in a variety of settings both for medical and recreational uses. However, this drug is taken by most people recreationally and don’t even know it. This can be a concern for those that have a sensitivity to this drug. The drug that almost most citizens throughout the world will have taken in their lifetime and not even realize it, is caffeine. For some this is an essential part of their everyday life or the feel a crashing effect come over them.

The aims of this double blinded study is to determine whether the consumption of a moderate dose of caffeine, approximately 180mg of caffeine in 6g of coffee, provides any beneficial effects on exercise as measured by heart rate and respiration rate as the indicator of aerobic

Caffeine is a legal stimulant that is consumed worldwide primarily through coffee and energy drinks (Turley, 2014; Graham, Hibbert and Sathasivam, 1998). Due to its ergogenic effect, caffeine is frequently used amongst athletes for improving their exercise performances (Magkos and Kavouras, 2004).

In general, caffeine alters the way our brain communicates to the central nervous system by imitating or changing the release and uptake of neurotransmitters. Caffeine is consumed to awaken and make people alert, however, there are other effects caffeine has on our body. Adenosine, the neurotransmitter that makes us tired, is just one neurotransmitter that is affected by caffeine consumption. For example, if the transmission of dopamine increases, caffeine improves our mood, and may even protect brain cells against age and disease (Weinberg & Bealer, 2015). In addition, if the activity of acetylcholine increases, caffeine increases muscular activity and potentially could improve long-term memory. And lastly, if the level of serotonin adjusts,

Thesis: Caffeine is something that almost everyone has consumed and some people are even addicted to. Caffeine has negative and positive effects on one’s health

It has also been proven to increase the amount of endurance shown when exercising. This liberty of choosing when your body gets tired is easily misused. When the caffeine finally wears off, the adenosine that built up has its chance to be processed through your body’s receptors. Because your body is not always fit to handle a huge wave of adenosine flooding through your receptors, it cause you to crash to recuperate. When people continue to ingest caffeine to avoid the crash, they tend to get symptoms such as: nausea, increased heartbeat, anxiety, insomnia, dizziness, heart palpitations, and vomiting. In extreme cases, caffeine can even cause cardiac arrest. This is why the National Collegiate Athletic Association (NCAA) has a set amount of caffeine that can be found in a student athlete in order for them to be eligible. Caffeine can be a very useful tool is used with

Caffeine primarily is a mild stimulant that causes this, that could also have some type of effect on mental performance. Physical performance can be improved with caffeine in the aspect of ergogenic benefit. Endurance exercise is increased along with endurance capacity once caffeine intake occurs. Along with increased performance comes the reduction of perceived exertion rate, making it seem like the individual is doing less work than they actually are. Caffeine is most prevalent in endurance exercises, whether it’s running, biking, or swimming. Various studies in research show that reduced muscle pain is also beneficial to caffeine. Caffeine has increased adrenalin production during exercise, in both inaerobic and aerobic exercises. Caffeine-mediated antagonism effects are exerted and received in the adenosine receptors in the brain, leading to