ES 380 Final Review PAcket

ES 380 Final Review PAcket - ES380 Review Sheet Metabolic...

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ES380 Review Sheet Metabolic Adjustments to Exercise Different requirements, different exercises INC. training, INC. metabolism Production of ATP ATP ADP + Pi + energy + heat Stores in muscle (creatine, phosphate) Non-oxidative metabolism/gycolitic metabolism Oxidative Metabolism/Aerobic Metabolism Maintains cell membrane, keeps life Metabolism: Energy Stores and Sources 1. ATP Stores - in 99% of circumference, this level of ATP changes very little. 2. Creatine-Phosphate - 75% at high exercise, INC CP leads to INC short term performance, helps in the long exercise routine but not short term. 3. Glycolitic Pathway - glucose is only source of substrate. Pyruvic Acid is the end product of Glycolysis. HK/PFK are critical control points of the glycolitic pathway. 4. Oxidative Pathway - produces ATP and Lipids. If Pyruvic Acid cant enter oxidative pathway due to HIGH CO2 or LOW O2 levels, Lactic Acid will be produced. Oxidative Pathway Pyruvic Acid doesn’t go through Oxidative Pathway for a number of reasons. 1. Not Enough O2 a. Already at VO2 MAX, without Lactic Acid, cant get rid of Pyruvic Acid. 2. Hypoventilation, HIGH CO2, LOW O2 3. Cardiac Arrest, O2 distribution to body STOPS 4. Lung Disease (Emphyzema) 5. HIGH Altitude 6. Fatigue Sometimes, you have sufficient O2, but may not be delivering it adequately. o Diseases such as Anemia o Underwater o Onset of Exercise (takes time for delivery of O2 due to Inc or Dec Intensities. o Increased Lactic Acid buildup (warming up helps lower chance of this) Metabolism - Glycolysis Glycolysis takes place in the Cytoplasm of the cell Cell requires INSULIN which enhances glycose. Liver is used for storage. Once glucose is in the cell, HK stimulates Glucose-6-Phosphate (stored Glycogen in muscle), enzyme responsible is SYNTHETASE (which is stimulated by Insulin). Enzyme breakdown of glycogen for ATP is PHOSPHORYLASE. Onset of exercise, glycogen will be performed for fast exercise, and immediate energy. For short/long term performance glycogen is important Pyruvic Acid - Lactic Acid, Alanine or Acetyl (processed in oxidation and stored in Liver) Metabolism : Glycolysis in Training Short/high intensity exercise will increase Cytoplasmic, glycolitic enzymes Endurance Training also increases glycolytic stores. ADP and inorganic phosphate will force HK and PFK to stimulate ATP. The trained athlete increases O2 capacity, more Pyruvic Acid and less Lactic Acid. o Trained athlete has HIGH PFK stores, Lactic Acid is now formed at much higher levels of training
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Ca++ stores breakdown of glycogen since its used to stimulate muscle contraction. Glycogen Carbs fuel Efficient source of energy when O2 is limited. Controlled by Insulin, HK, PFK, Synthetase, and Phosphorylase.
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This note was uploaded on 04/07/2008 for the course ES 380 taught by Professor Burton during the Fall '06 term at SUNY Buffalo.

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ES 380 Final Review PAcket - ES380 Review Sheet Metabolic...

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