Energy Intake And Expenditure In Sports Performance Essay

Energy is expended in a number of different ways such as the stated above; resting metabolic rate, thermic effect of activity, thermic effect of feeding and adaptive thermogenesis. An individual’s energy balance is the balance of calories consumed through eating and drinking compared to calories burned through physical activity, what an individual drinks and eat is energy in. what an individual burns though physical activity is energy out. Body weight is maintained and stable in the state of energy balance, the chemical bonds of carbohydrates, proteins and fats in food contain chemical energy which is then transformed in the human body in multiple metabolic processes to cellular energy, heat or stored energy. An individual’s burns a certain number of calories just by breathing air and digested food. They also burn a certain number of calories through their daily routine, an important part of maintaining energy balance is the amount of physical activity an

Calories on the planet originate as solar energy which is processed by plants and turned into energy. Then animals eat the plants. Then other animals eat the animals.

BMI cannot differentiate between body fat and muscle mass. This often results in misleading information with regard to the amount of fat in the individual, as muscle is denser than fat. (British Heart Foundation 2009). Meaning there is a potential risk of overestimating BMI in individuals with a high muscle mass, such as athletes.

The energy systems used by the human body is categorised into the intensity of the activity performed and the time of which it takes to complete. In sports, she relationship between intensity and time is in most cases inversely proportional seen in the diagram. An example of a sport that is of high intensity and is completed in a short time period is a 100m sprint. In comparison an example of an activity or sport that is of low intensity but takes a long time to complete is a 3000m run.

3. What is “metabolism”? What does human metabolism have to do with energy balance and body weight? Answer: metabolism- the chemical processes that occur within a living organism in order to maintain life. Food is measured in calories which the body processes as energy. Additional calories must be burned through exercise or physical activity or it will be stored as fat.

The higher the number, the more the body fat a person has. BMI, however, does not work the same way for everyone. Bodybuilders may have a very high BMI, despite not being obese, leading to incorrect readings and on the other hand, older people might have low BMI, but that is because they have lost muscle mass and not because they are obese. Hence, BMI is different for every person and is not a good way to generalize how a person’s physique should be judged. BMI should be evaluated by a health care provider who will be using various sources, along with BMI, in order to figure out how unhealthy or fit a person really

I watt-I joule/sec. most useful kinds of energy=chemical and potential. One calor is the enrgy it takes to raise one kg of water by one degree Celsius. 4k joules=calories. Solar cells- crystals that convert sunlight directly into electricity. K energy depends on sq of v. double speed=kinetic energy increased by factor of 4.. temp is a measure of hidden kinetic energy.

mass index), which is defined as the individual’s body mass divided by the square of their

Overweight is often misinterpreted as obesity, but it has been proven that individuals such as bodybuilders and professional athletes can be overweight yet they do not suffer from obesity. Obesity refers to just excessive body fat whereas overweight refers to excessive body weight including water, bone, fat, and muscle. A certain amount of fat is needed to store energy, heat insulation, shock absorption, and other functions, but when men reach more than twenty-five percent body fat, and women reach more than thirty percent they are considered obese. A person’s body mass index (BMI) is measured by dividing body weight in kilograms by the square of body height in meters (Wilmore, et al., 2008).

Many individuals seem to be ready and willing for Body Composition Analysis (BCA) because of their understanding that having a healthier body means to have a leaner body. However, an individual is considered to be healthy only when he or she has identified the quantity of fat in the body and for it to take place. The process of identifying or determining the body fat percentage is known as Body Composition Analysis that is conducted through various methods. This process is mainly used across homes, professional practices, and gyms and involves the use of various methods including "¦.

Body composition testing determines how much of your body is and isn't fat. The non-fat part of your body is called lean tissue, which includes your muscle, water, bone and organs. Lean tissue is known as metabolically active tissue, which is consistently burning calories all day. The more lean tissue you have, the higher your resting metabolic rate will be. Body fat is a storage form of energy and therefore has a very low calorie demand. A DEXA Scan is one mechanism to determine fat and lean tissue. It is very accurate and repeatable, however it can be extremely costly and difficult to find. This process involves the subject lying on a table fully clothed and a small dose of radiation that passes through the body allowing X-rays to distinguish fat from

Excess body can cause health problems and sociological risks. Many factors aid in weight gain: gender, age, genetics, lifestyle, and ethnicity. The BMI chart informs a person of which category they fall in. Once determing in you’re weight is under, average, or over, there are ways to measure the fat on the body. Some people use unhealthy methods to lose weight like anorexia or bulimia, but the best way to lose weight is with a proper diet and physical

According to Ayoob( 2009), a calorie can be defined as a unit of heat energy that human body use as energy to produce heat. This energy fuels human body for strength in daily activity. In scientific term, there are two types of calories which small calorie and large calorie (Nordqvist, 2013).

Body composition is a combination of numerous components these are: Fat mass, fat free mass, Adipose tissue mass, Lean body mass and relative body fat.

Three different metabolic energy systems power your workouts — and your day. Here’s how each one works, and how to make the most of them all.