The function of the circulatory system is to transport blood around the body. It consists of the heart and blood vessels. The main organ of the circulatory system is the Human Heart. The other main parts of the circulatory system include the Arteries, Arterioles, Capillaries, Venules, Veins, and Blood. The lungs also play a major part in the pulmonary circulation system. The function […]
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Cellular Respiration is the process that takes place in cells to convert food into energy. Here we explain the key terms ATP, ADP, and the formula for cellular respiration. Stored in muscles as ATP (adenosine triphosphate), the body converts molecules of Carbon, Hydrogen, Oxygen, and Nitrogen into energy. Formula for cellular respiration When your body needs
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Oxygen debt is the oxygen your body needs to recover after anaerobic exercise. It is more than just the oxygen you needed whilst exercising because it takes energy to replace the oxygen deficit. When you have a short intense burst of exercise such as sprinting you generate energy for this anaerobically, or without oxygen. When
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Exercise affects the circulatory system, respiratory system, and muscles. Short-term effects occur immediately as we begin to exercise. Long-term effects are more concerned with adaptive changes over time with regular exercise. Short-term effects of exercise When we begin to exercise the body has to respond to the change in activity level in order to maintain a
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When you begin to exercise your body must immediately adjust to the change in activity level. Energy production must increase to meet demand. As a result, the predominant energy system and fuel source used changes throughout the exercise in order to maintain the required level of performance. Responses to anaerobic exercise In order to immediately
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Aerobic respiration means ‘with oxygen’ and occurs when the body produces energy from chemical reactions using oxygen. The Krebs cycle is part of aerobic metabolism. You can sustain aerobic exercise for as long as breathing supplies your lungs with enough oxygen. However, when you begin exercising your body cannot deliver oxygen fast enough for the
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Anaerobic respiration is when the body produces energy for exercise without oxygen. There are two types of anaerobic respiration that you need to know about. The immediate ATP-PC system and the Lactic Acid system. The human body generates energy for muscles in three ways: Aerobic energy system ATP-PC system Lactic Acid system The aerobic system
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The human digestive system breaks down food so it is available to the body for energy, cell growth, and repair. Here we explain the organs and processes that enable our bodies to convert food into sports performance. Digestive system function Video explaining the structure, function, and passage of food through the digestive system. Breaking down food
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VO2 max is the measure of the peak volume of Oxygen (VO2) you can consume and use in a minute and is a popular measure of an athlete’s aerobic fitness. It is measured in ml/kg/min. The per kilogram part means that an athlete’s body weight is taken into account. Oxygen is needed to produce energy
Respiratory volumes are the amount of air inhaled, exhaled, and stored within the lungs at any given time. There are a number of different measurements and terms which are often used to describe this including tidal volume, inspiratory reserve volume, residual volume, vital capacity, and more. Here we explain the main respiratory volumes. Tidal Volume
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