exsc-205

exsc-205 - exsc 12:48:00 ← What it is ← ← An attempt...

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Unformatted text preview: exsc 15/01/2008 12:48:00 ← What it is ← ← 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 100-200 meters? ← What are the best and most efficient methods of training athletes for their respective sports? ← ← What makes the elite or super athlete? ← 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 1/17/08 15/01/2008 12:48:00 ← 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 ← =216,000 calories ← ← Women are able to utilize a greater proportion of fat during certain exercises (long term) • bag water run ← ← 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 anaerobic aerobic ← 100 ← ← ← % of energy ← ← ← 0 ← 10 30 2min 4min ← time (seconds) ← Anaerobic • lactic acid = muscle fatigue ← Glycolysis (anaerobic) ← ← Glucose (C 6 H 12 O 6 ) ← NADox ← 2ATP 4ATP ← NAD2H ← 2 Pyruvate (C 3 H 4 O 5 ) ← ← ← NAD2H Aerobic System ← H 2 O ← ← ← pyruvate + NAD2H LDH Lactic Acid + NADox ← ← Lactate Dehydrogenase = LDH...
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exsc-205 - exsc 12:48:00 ← What it is ← ← An attempt...

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