CARDIOVASCULAR FITNESS Cardiovascular fitness is frequently considered the most important aspect of physical fitness because those who possess it are likely to have a lessened risk of coronary heart disease – the number one killer in our society. Cardiovascular fitness is also referred to as cardiovascular endurance‚ cardio-respiratory capacity and circulatory fitness. Regardless of the word used to describe it‚ cardiovascular fitness is complex because it requires fitness of several body systems
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Cardiovascular Diseases Cardiovascular disease is defined as a disease that affects any area of the cardiovascular system‚ including the heart and blood vessels‚ and covers a range of diseases such as arteriosclerosis‚ atherosclerosis and coronary heart disease. Diet plays a vital part in the prevention and control of these diseases however other manageable factors such as smoking and physical inactivity also contribute to the diseases if not controlled correctly. However corrective action or
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Ginkgo biloba affects the cardiovascular system and the central nervous system. Elasticity of the blood vessels‚ from the largest arteries to the smallest capillaries‚ improves the circulation in the limbs and brain. Similarly‚ acetylsalicylic acid acts by reducing blood viscosity and by reducing the risk of blood clots. It also has antioxidant properties. It removes free radicals and protects healthy blood cells. Some researchers claim that it supports the nervous system. increasing the supply of
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Assignment Energy Transfer in living systems Energy is the capacity to do work. All living organisms require energy for carrying on their vital metabolic activities. The primary source of energy for living system is solar radiation. The radiant energy of sunlight cannot be utilized directly by all living organisms. This ability rests only with the green plants. All the other organisms have to meet their energy requirement only through the green plants. Energy that flows in the living system is called
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Atkins or ‘Fadkins’? by Karen E. Bledsoe Biology Department Western Oregon University‚ Monmouth‚ OR 1. Please go to School Wires for this link: http://www.sciencecases.org/atkins/case1.asp 2. Read all of Part I: “Macronutrients and Energy”. When you are finished‚ answer the following questions: a) First‚ find out what nutrients Janine and Mitchell are talking about. Using a biology textbook and the resources listed‚ describe what the following molecules are and what they are used for
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2005; 2: 1-4 Drug Metabolism in the Neonate Imti Choonara Academic Division of Child Health‚ University of Nottingham‚ Clinical Sciences Wing The Medical School‚ Derbyshire Children ’s Hospital‚ UK _____________________________________________________________________________________________ Abstract The newborn infant has a reduced capacity for drug metab olism in comp arison with infants and children. This is more marked in the preterm neonate. Altered drug metabolism may predispose the
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The function of the digestive system is to absorb and assimilate key nutrients which are required to maintain and regulate other systems in the body. Enzymes secreted within the digestive system have a role of breaking down food from proteins into amino acids‚ starch into glucose and fats into a mixture of fatty acids and glycerol. The main function of the respiratory system is to inhale oxygen and exhale the waste product carbon dioxide. Oxygen is breathed through the mouth and nostrils into the
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Energy Systems Contents Page Title Page Number Energy from Foods 3 Re-Synthesis 4 Creatine Phosphate Energy System 5 Lactic Acid Energy System 6 Aerobic Energy System 7 Sporting Examples 8 Training Methods 9 Bibliography 11 Energy from Foods We need energy in order to make our muscle fibres contract. Our energy comes from two main sources; Fats and Carbohydrates. Our energy is obtained from the oxidation that takes place in carbohydrate and fat food sources. Oxidation is the combination
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change the food we eat into ATP to provide our muscles with the energy they need to move • Examine the three metabolic systems that generate ATP 2 Fuel for Exercise : Bioenergetics and Muscle Metabolism Terminology • Substrates – Fuel sources from which we make energy (adenosine triphosphate [ATP]) – Carbohydrate‚ fat‚ protein Measuring Energy Release • Can be calculated from heat produced • 1 calorie (cal) = heat energy required to raise 1 g of water from 14.5°C to 15.5°C • 1‚000 cal
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We require energy for each and every activity that is being performed whether physically or chemically. This energy is acquired from the food we eat. In order to release that energy‚ certain anabolic and catabolic reactions take place. The three main energy systems are ATP Pcr‚glycolytic and oxidative; oxidative having three futher subgroups. These are discussed below ATP Pcr The ATP Pcr system is a constituent of Adenosine triphosphate and phosphocreatine. This energy system provides high energy
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