week1 - Metabolic Pathways Immediate Sources (ATP stored in...

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Sheet1 Page 1 Aug, 26, 09 An attempt to understand what facilitates and what limits one's optimal performance. Why does fatigue occur after running 1-2 miles? Is I caused by the same factors as in a marathon (26 miles)? What about 100 What are the best and most efficient methods of training athletes for their respective sports? What makes the elite or super at h Can he/she be identified physiologically? Can "average" people reach elite status by training? o Muscle Fiber Types o Fast twitch (FT) o Slow twitch (ST) Effects of environment on performance? Heat Cold Altitude Pollution Aug, 28, 09 Metabolism Adenosine Triphosphate (ATP) Creatine Phosphate ATP ATPase ADP + P + energy for any energy needs! CP + ADP CPK ATP + Creatine CHO, Fats, Protien met Energy ADPtP ATP Energy Storage MP/CP 10-20 calories Glycogen 1100-1600 calories Fat 170 lbs 10% fat = 17 lbs of fat x4000 (4000 calories per lb of fat) = 68,000 calories 180 30% fat 54 lbs of fat x4000 =216,0 0 Women are able to utilize a greater proportion of fat during certain exercises (long term) bag water run
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Unformatted text preview: Metabolic Pathways Immediate Sources (ATP stored in muscles is available right away) Anaerobic (energy derived with no oxygen involved) o Multi enzyme system so it takes longer Aerobic o multi enzyme system so it takes longer immediate 100 anaerobic aerobic % of energy 0 10 30 2min time (seconds) 4min Anaerobic lactic acid = muscle fatigue Glycolysis (anaerobic) Glucose (C6H12O6) NADox 2 A Aerobic System H 2O pyruvate + NAD2H LDH Lactic Acid + NADox Lactate Dehydrogenase = LDH KNOW LDH is only responsible for oxidizing NAD NAD is a hydrogen acceptor that transports hydrogen ions How many ATPS net or gross Mitochondira Krebs Cycle Amino acids Pyruvate Acetyl CoEnzyme A Free Fatty Acids glucose amino acids glucose free fatty acids amini acids free fatty acids Amino acids glucose carbs = prote Protein C, H, O, N liver ammonia urea Cytochrome system Energy % fats Rest 69-80 CHO <20 Protein <5...
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This note was uploaded on 09/28/2009 for the course EXSC 205Lxg taught by Professor Girandola during the Fall '07 term at USC.

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