Kinesiology 2230A/B Midterm: Midterm 1 Notes - Lectures 10, 11 & Review
9 Dec 2016
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Energy: g, cho and fars vo2, mass and kcals. More energy from cho (5. 05kcals/gram) compared to fats, which per liter of o2 consumed will release (4. 69kcals/gram) Fat more efficient in terms of kcal/gram. Reduce activation energy required for reaction to occur, allowing more reactions to take place. Energy systems: atp pcr, anaerobic/aerobic, glycolysis, fat oxidation, regulation and control] Atp pcr: very fast at breaking down atp for energy and breaking down. Anaerobic metabolism: glycolysis, pyruvate, lactate, immediately gaining more energy from glycolytic pathway no o2. Aerobic metabolism: glycolysis, pyruvate, kreb"s, etc utilization of o2. Fat oxidation: transport of fats from periphery to muscle cell, albumin, mitochondria, beta oxidation. Regulation and control: when do we use the different metabolic pathways, greater intensity = more cho burnt, lower intensity, extended duration = more fats burnt. Increasing exercise intensity more energy comes from pyruvate to lactate reaction.
