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Describe each of the energy systems ATP-CP phosphogen System Stored at the myosin cross-bridges is broken down to release energy for contraction it is used for short bursts of energy - it is exhausted after about 10 seconds Lactic Acid System Carbohydrate is broken down anareobically without oxygen to lactic acid This causes muscular fatigue The energy released during this breakdown is used to re-synthesize ATP Exercise performed at maximum rates for between one and three minutes depending heavily upon the lactic acid system for ATP energy Oxygen System Firstly uses glucose from either muscle tissue or from the liver and secondly breaks down fatty acids The main fuel is glucose What is ATP The Energy for muscle contraction which comes from the breakdown of a chemical compound named adenosine triphosphate ATP Sources of ATP Protein Carbohydrates and Fats How is ATP produced in each energy system a ATP - CP ADP and the phosphate are converted back to ATP by the creatine phosphate CP when ATP is depleted b Lactic Acid Carbohydrate is broken down anareobically without oxygen to lactic acid The energy released during this breakdown is used to re-synthesize ATP c Oxygen What is the fuel source for each of the energy systems ATP-CP System - Lactic Acid System - Glycogen Oxygen System - Glucose triglycerides How are each of these fuels replenished a Phosphagen b Anaerobic c Aerobic What is the fuel stored for each energy system ATP-CP System - myosin cross-bridges Lactic Acid System - glycogen Oxygen System - What is the time frame in which each energy operates ATP-CP System - Up to 10 Seconds Short-duration activites Lactic Acid System - 1 - 3 Minutes Oxygen System - Long-duration activities Explain the Anaerobic Threshold The intensity of effort at which lactic acid accumulates Usually this is at about
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