This website uses cookies to ensure you have the best experience. Learn more

Caffeine And Hr And Bp Essay

1733 words - 7 pages

Aim:
The aim of the project is to determine the effects of caffeine on cardiac output. The study will examine the effects of caffeine ingested through a caffeinated sports drink and monitor its effects on blood pressure (BP) and heart rate (HR) before and after exercise. Caffeine is a one of the most frequently consumed drugs in the world. It is estimated that an average person consumes 70 mg per day (1). Caffeine has physiological and psychological effects, predominantly due to the inhibitory effects of adenosine, which acts as an inhibitory neurotransmitter in the central nervous system (2). Adenosine also has vasodilator effects. The consumption of caffeine may increase blood pressure ...view middle of the document...

Adenosine is a very important neurotransmitter that is found everywhere in the body because of its role in adenosine triphosphate (ATP) energy producing mechanism. It is also suggested that adenosine has a role in blood pressure and heart rate regulation (6).

Caffeine is one of the most frequently consumed drugs in the world. The amount of coffee consumed globally is estimated to be around 120,000 tons per year (4). Caffeinated sports drinks are commonly consumed by athletes around the world before exercise to enhance athletic performance. In the athletic world, up until 2004 caffeine was banned from the Olympics, with athletes being limited to 12 mg/mL in urine. A survey done by the International Journal of Sport Nutrition stated that 73% of athletes in NCAA Division 1 football consume caffeinated energy drinks on a regular basis (5).

Research has shown that energy drinks can lead to many mental and physical health problems. In 2012 the FDA related 40 illnesses and five deaths linked to a popular energy drink. The use of these substances is growing each year, especially among the younger populations. With the increased consumption of these caffeinated drinks, it is becoming increasingly important to study the potential effects these substances may be causing to public health.

Research Plan:
The proposed research project is a phase 3 randomized study. Thirty participants with ages ranging from 18-30 will be chosen from the island. The thirty participants will then be randomized into two groups using random.org. The first group is the control group and they will be consuming 250 mL of a decaffeinated energy drink. The second group is the treatment group; each participant will consume 250 mL caffeinated energy drink. Once each participant consumes their allocated beverage, their heart rate and blood pressure (systolic/diastolic) measurements will be tested. Following the baseline heart rate and blood pressure testing, each participant will run a total of 1 km. After completion of the run, their heart rate and blood pressure measurements will be taken again. The exclusions for the participants include: Overweight, pregnancy, pre-existing conditions such as hypertension, heart disease, diabetes. Inclusions for the study include healthy men and women aged between 18-30.

Statistical Analysis:

The first statistical test to be conducted is a power analysis using the g-power program. A power analysis is conducted to determine the probability of finding a statistically significant effect assuming a real effect in the population.
A previous study conducted demonstrated the effect of caffeine on ambulatory blood pressure, heart rate, and mood in coffee drinkers. Heart rate in the caffeine group displayed a mean 65.5 beats/min and a standard deviation of 13.6 The placebo group had a mean of 66.4 beats/min and a standard deviation of 10.6 (7). A power analysis was conducted and displayed an effect size of 1.09 and...

Find Another Essay On caffeine and hr and bp

Coffee, Caffeine and Health Essay

1629 words - 7 pages Coffee, one of the most common drinks in our society. Majority of people like to get a taste of it and have an enjoyable time. However, it may lead to both physical and psychological influence. Caffeine is usually taken in form of coffee (Frishman, Del Vecchio, Sanal, and Ismail, 2003). Since caffeine is the substance most being taken in, it will be focused in the following parts. In the first part, several aspects involving effects of caffeine

Caffeine and memory Essay

1716 words - 7 pages suggesting an increase of glucose in the brain can be shown by Benton and Parker (1998) and Gold (1986), whom found positive links between glucose and STM capacity. Thus suggesting the impact of sugar for improvement in STM capacity. Furthermore the most controversial findings related to diet and STM are the effects of caffeine. Peeling and Dowson (2007) found that caffeine increases concentration and alertness in the brain, which can account for the

HR Metrics and Analytics

1355 words - 5 pages The function of Human Resources in corporations usually includes the use of metrics and analytics through collection of data on the employees’ efficiency. HR metrics are used to quantify the cost and the impact of employee programs and HR processes and measure the success or failure of HR initiatives (Missildine, 2013). The company is able to track trends and changes with the data collected as it provides for measurement function that helps

HR Roles and Responsibility

743 words - 3 pages In today's business atmosphere Human Resources (HR) plays an imperative role to the success of a company and/or organization. HR allows a corporation to focus by staying connected to both the corporations, objectives and business strategies. Within most companies the HR management team focuses on protecting, maintaining, and utilizing an effective work force. Furthermore HR managers, as any other manager utilizes the four basic functions of

HR Roles and Responsabilities

1138 words - 5 pages composed of policies that promote mutuality- mutual goals, mutual influence, mutual respect, mutual rewards, mutual responsibility. The theory is that policies of mutuality will elicit commitment which in turn will yield both better economic performance and greater human development."HR Department at Collin County Community College District:"The CCCCD HR Office Mission is to provide quality programs and services to attract and retain excellent

HR Roles and Responsibilities

1138 words - 5 pages composed of policies that promote mutuality- mutual goals, mutual influence, mutual respect, mutual rewards, mutual responsibility. The theory is that policies of mutuality will elicit commitment which in turn will yield both better economic performance and greater human development."HR Department at Collin County Community College District"The CCCCD HR Office Mission is to provide quality programs and services to attract and retain excellent

HR Roles and Responsibilities

772 words - 3 pages Many aspects of Human Resources management are changing along with major trends in globalization, technology, diversity, e-business, and ethics. This paper will review some of these changing aspects to gain a better understanding of Human Resources and their role today in organizational development.With so many companies entering into the global marketplace today, Human Resource (HR) issues exist to contend with such as diversity, culture, and

HR and Stress

1377 words - 6 pages No matter the depth of a company, it will always have the inherent need for human resources. It is safe to say that without manpower, our company would not exist. Recognizing not only the need for people, but more importantly, the need for skilled, efficient and loyal employees has been a key turning point in defining the role of the HR professional. Then, the increase in technology associated with workplace production has increased the

HR Roles and Responsibilities

1040 words - 4 pages The role of the human resources (HR) department is shifting, and that means that the roles and responsibilities of HR professionals are changing, too. Increasingly complex organizational needs are placing high demands on the HR function and the ability to integrate the basic HR disciplines is essential to success. "Human Resources Management (HRM) consists of an organizations "people practices"--the policies, practices and systems that influence

HR Roles and Responsibilities - 821 words

821 words - 3 pages Human Resources professionals have a unique position in the organization. The HR representative services all the company employees as their customers. This can be challenging considering that these are the people we see and interact with daily. HR employees essentially take on dual roles as client service representatives as well as company staff members. Therefore it is imperative that HR employees maintain good working relationships with their

HR Roles and Responsibilities - 871 words

871 words - 3 pages In the world today, effectively managing human resources can greatly improve the success of an organization. This paper will describe the changing role of Human Resource (HR) management in response to trends in globalization, technology, diversity, e-business, and ethics.Human resource management in a organization can be equated to a vital organ in the human body: one cannot survive without the other. HR management is a dedicated area of

Similar Essays

Caffeine And Its Effects Essay

2212 words - 9 pages caffeine you are putting your heart at risk to begin the cardiovascular side effect. “It should be noted that if the increase in HR variability is predominantly from the contribution of LF power, it may reflect in higher LF/HF ratios, and this could be detrimental to patients at risk for cardiovascular disease” (Bonnet 154). This causes the heart to over work its self-more than it should. In fact after consuming caffeine your heart can increase up to

Caffeine And Athletics Essay

1059 words - 5 pages Many athletes use caffeine to gain a competitive edge, is it worth the risk? When using caffeine, there are many inconvenient side effects. Caffeine can increase the risk of dehydration. Another more serious risk of pairing exercise and caffeine is the possibility of reaching too high of a heart rate. Using caffeine to boost your performance is unrealistic and inefficient. Athletes should avoid the use of caffeine due to the negative effects on

Caffeine And Attention Essay

2301 words - 9 pages 1ATS1359Does caffeine improve study? : An examination of alertness, sustained attention and working memory with and without caffeineDue date: 21/09/2012Student name: Jesse MinshallStudent ID: 23640758Word count: 756Does caffeine provide benefits in studying?Caffeine (1,3,7-trimethylxanthine) is classified as a mild stimulant and is the most widely consumed psychoactive substance in the world today (Koppelstaetter et al., 2010). It is found in

Caffeine And Anxiety Essay

514 words - 2 pages drug. But caffeine can exacerbate anxiety and panic disorders.” How, you may ask. Caffeine works by blocking the depressant function of a chemical called adenosine. For most people, the result is a pleasurable feeling of energy and the ability to focus (Vogin para. 7). However, that same energy-inducing drug can cause the jitters. In people predisposed to anxiety disorders, caffeine can trigger increased heart rate, sweaty palms, ringing