The most complex energy system is the aerobic or oxygen energy system, which provides most of the bodys atp. The aerobic energy system does not produce lactic acid, but unlike the other two energy systems, it does require oxygen. This system produces atp as energy is released from the breakdown of nutrients such as glucose and fatty acids. In order to perform hard work for extended periods of time, the body derives energy from the oxidative metabolism of fat and carbohydrate. This first stage is anaerobic so it takes place in the sarcoplasm of the. Aerobic exercise improves your maximum oxygen uptake, which measures how well your body utilizes oxygen at the cellular level. Apologise for any grammar or spelling mistakes in advance, if you find some, this is due to my dyslexic understand the concept of energy with reference to physical activity. In line with the specification content in energy systems and atp resynthesis, the lesson describes the type of reaction, the sites of the specific stages within the system, the fuel used, the controlling enzymes, the atp yield and the biproducts. Home a level and ib study tools physical education energy systems. State the only useable energy source in the body and the duration of exercise possible using the bodies stores of atp 2. Anaerobic energy systems st johns,marlborough a level pe. I mark question 9 the mam fuels required for aerobic glycolysis are a.
Duration that the system can operate provides atp quickly, but requires large quantities of glucose 3 moles of atp are the most that can be manufactured from the breakdown of 180 grams of glycogen during anaerobic glycolysis sports that use the lactic acid system swimming 200m. Achieving and maintaining a healthy level of aerobic fitness, as defined using criterionreferenced standards from the national health and nutrition examination survey nhanes. As you continue with an aerobic exercise training regimen, your body adapts to the oxygen and energy demands required to. Aerobic system of energy production needs oxygen at onset of activity, although oxygen is present in the muscles there isnt enough to break down fuels into energy. This is the process that releases energy from food, converting glucose into energy.
To understand the stages of the aerobic energy system. Chapter 2 aerobic fitness and work capacity erobic means with oxygen. Alevel physical education paper 1 factors affecting participation in physical activity and sport. Home skill acquisition psych anatomy and physiology. The aerobic and anaerobic energy systems peak performance. Neuromuscular system and goes hand in hand with as pe book by roscoe and roscoe. Aerobic exercise can help prevent or reduce the chance of developing some cancers, diabetes, depression, cardiovascular disease, and osteoporosis. A lack of sufficient oxygen levels due to high intensity will mean the enzyme ldh. Anaerobic and aerobic energy pathways brianmac sports coach. Its a lot more complicated than this, but in essence, think of the. This is a powerpoint that describes and analyses the aerobic energy system. Training the right energy system in relation to your sport will ensure optimum performance. Characteristics of the aerobic system much slower energy production than that of the anaerobic systems lag of 25 minutes until the individual reaches a steady state where the respiratory systems increased oxygen intake meets the activitys.
See also the section on the respiratory system here. Students will have to use books as well to answer the questions as there are independent studies in the worksheet. E exercise can be grouped into two basic categories. As an example, the aerobic energy system would be the main energy contributor to a marathon runner. However, tennis requires a balance, and the best tennis players have high levels of both anaerobic and aerobic fitness. Energy systems introduction as physical education 20. Your cardiac output is influenced by your heart rate and stroke volume. In order to meet oxygen and energy needs during aerobic exercise, and overcome your oxygen deficit, the cardiovascular system goes through some changes from your normal resting state. Each system differentiates in the way they produce chemical energy atp from. View the screencast and make notes on the different types of energy, and the process of resynthesis. In the presence of oxygen, atp can be formed through glycolysis. Click on the video to access the second screencast in the energysystem section. Alevel physical education textbooks print and digital many educational books and digital resources are published each year to support qualifications. By five minutes of exercise duration the aerobic energy system will have become your dominant energy source.
Physical activity, fitness, and physical education. This system breaks down glucose into carbon dioxide and water which, in the presence of oxygen, is much more efficient. Respiration gcserevision, pephysicaleducation, health. Note that each level indicates the allocation of marks that is relevant to both. The aerobic system accesses a massive store of virtually unlimited energy.
A2 level pe exercise phys energy systems flashcards. The aerobic system uses aerobic glycolysis, the krebs cycle and the electron transport chain in its production of atp. The three energy systems work together in order to ensure there is a continuous and sufficient supply of energy for all our daily activities. A level pe physiology a2 pe anaerobic energy systems flashcards. Let us have a look at the major difference between aerobic and anaerobic respiration. Aerobic respirationwith oxygen o 2 during aerobic activity, your heart and lungs supply the muscles with.
While most people can give you a basic definition of aerobics, anaerobic exercise can be a bit more difficult to explain. Energy systems used in sports the three energy systems do not work independently of one another. When there is not enough oxygen available at the start of exercise to provide all the energy atp aerobically. Name 2 anaerobic energy systems and 1 aerobic energy systems 3. The process can be conveniently divided into two categories based on the usage of oxygen, namely aerobic and anaerobic respiration. Intensity of aerobic exercise and individual fitness level of will determine the use of fats or.
Name the main energy system being used throughout the race and explain how. Aerobic energy system energy sources exothermic and endothermic reactions. Exercise intensity at which anaerobic energy pathways start to operate. To explain the atppc and anaerobic glycolytic system. Overtake the aerobic system as the dominant pathway. The complete oxidation of glucose can produce up to 38 molecules of atp. Energy system that produces high powered energy for high intensity effort in events such as the 100m. Energy systems category covers the various ways in which the body generates and uses energy and includes anaerobic respiration, aerobic respiration, krebs cycle, human digestive system, oxygen debt as well as the long term and short term effects of exercise on the body.
Briefly describe how the aerobic energy system within the cell mitochondria. Delivery guide for ocr asa level physical education. Stroke volume is the amount of blood that is pumped out of your heart with each beat. Cellular respiration is the process that energy systems in sport read. Cellular respiration is a process that takes place inside the cells where energy is released by the breakdown of glucose molecules. In simple biological terms, the aerobic energy system utilizes fats, carbohydrates, and sometimes proteins for resynthesizing atp cell energy for energy. Aerobic energy systems flashcards in a level and ib. This means that the aerobic system threshold is met. When exercise intensity is low and oxygen supply is high, e.
Alevel physical education textbooks print and digital aqa. Aerobic fitness is defined as the maximal capacity to. High school diploma associates degrees bachelor degrees. Analysis of both anaerobic energy systems lesson 4. Marathon runners marathon runners run for 26 miles 385 yards. Course content expand all cardiovascular system 6 quizzes expand lesson content circulatory system quiz a level effects of exercise on circulation quiz a level heart conduction system quiz a level. Source of fuel the aerobic system can use cho, fats, and protein as its source of fuel, though protein is used sparingly. Energy systems introduction as physical education 20 1. Once the cp stores are depleted the body resorts to stored glucose for atp. Aerobic energy systems st johns,marlborough a level pe weebly. A2 pe anaerobic energy systems flashcards by sarah haslop. Energy systems flashcards in a level and ib physical.
Physical fitness as a learning outcome of physical education and its relation to academic performance. If there is a sufficient amount of oxygen, the aerobic system can produce energy to resynthesise atp. Aerobic energy systems st johns,marlborough a level pe. The breakdown of glucose or glycogen in anaerobic conditions results in the production of lactate and hydrogen ions. This detailed lesson describes the specific stages of the aerobic energy system and has been designed for the ocr alevel pe course. Developing knowledge of the energy continuum lesson 5. It gives diagrams and theory to understand the step by step process. To help you find the right resource for your students, we work with publishers to ensure that their textbooks align with.
Which activity below is fuelled primarily by the anaerobic energy system. In this phase, as the term indicates you are using oxygen to fuel the breakdown of carbohydrates first, free fatty acids second and if the exercise continues long enough protein. Ocr a level pe textcomic book resource sheets legacy. Also known as aerobic capacity and measured in millilitres of oxygen, for each kilogram body weight each minutes mlkgmin 14 of 21. Physical activityaerobic exercise wikibooks, open books. Click here access the screencast on the anaerobic lactic acid energy system. A2 level pe aerobic capacity learn with flashcards, games, and more for free. Understanding the process of atp resynthesis lesson 2. Oxygen provides the catalyst for a chemical reaction in our muscles including the heart that generates aerobic energy. Within each training zone, subtle physiological effects take place to enhance your fitness the energy efficient or recovery zone 60% to 70%. When you exercise how does the cardiovascular system respond.
The three energy systems 1 aerobic energy system distance running uses aerobic energy aerobic means with air. Energy systems introduction as physical education 20 slideshare. Running at this level assists the removal and turnover of lactate and the bodys. Thus you can say that cardiovascular endurance is important for long distance runners, team sports performers, endurance cyclists and rowers see chapter 1c. Home a level and ib study tools physical education aerobic energy systems. The accumulation of hydrogen ions is the limiting factor causing fatigue in runs of 300 metres to 800 metres. Heart rate training zones are calculated by taking into consideration your maximum heart rate hr max and your resting heart rate hr rest.
An aerobic exercise plan should be simple, practical, and realistic. When exercise intensity increases, so does your bodys necessary demand for oxygen consumption. It should be noted that the phosphagen system is anaerobic as well. You get the students worksheets, teachers worksheet with answers and powerpoint. Articles on physiology books on physiology blood pressure body type. Book and key pe concepts and skills from the aqa specifications. Burning more energy will require eating more, but even if a person eats more, the person can more easily lose fat by working out. The three energy systems can be introduced through the observation of a range of sports, for example, the triple jump for the atppc system. I mark the energy system you have identified tn part a. Aerobic energy system ocr alevel pe teaching resources. We all need energy to go about our daily lives and accomplish the goals that.
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