UMass Amherst KIN 470 - 1.30.14 kin 470 class notes (6 pages)

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1.30.14 kin 470 class notes



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1.30.14 kin 470 class notes

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Pages:
6
School:
University of Massachusetts Amherst
Course:
Kin 470 - Exercise Physiology

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1 30 14 kin 470 class notes Article o Obesity is found to gain its hold in earliest years o 5 years old did they remain obese in later years o Residence in our department schools in Springfield implementing exercise programs in the classroom o Speak with Dr Alex Han o Other article Headway in reducing obesity in children and adolescents Questions of the day o Why is lactic acid formed and what happens to it where does it end up o What the purpose of making NADH and FADH2 Electron carries ETC electron transport chain Anaerobic ATP Production o ATP PCr system Immediate source of ATP 1 PCr 1ATP use creatine kinase during reaction o PCr ADP ATP Cr o During exercise phosphate builds up o Even though we burn through a lot of ATP they are essentially static the same over time o Peaks stay the same body is very good at maintaining the concentration of ATP in the muscles o Maintain ATP at expense of phosphocreatine It is neat cool if you are a sprinter get energy really fast Not very efficient 1 1 Better ways of getting more ATP Anaerobic ATP production o Glycolysis 1 glucose 2 ATP 2 NADH 2 pyruvate or lactate o glucose 6 carbon molecule C6H12O6 the two phases of glycolysis o happens in two phases o goes from cytosol to inside mitochondria o 1 Energy investment phase priming the molecule to release energy later 2 ATP required o 2 Energy generation phase produce 4 ATP o end 2 3 c molecules either pyruvate or lactate 2 ADP 2 ATP 2 NAD 2 NADH 1 glucose 2 pyruvate lactate Entry of glucose into glycolysis o 1st reaction depends depends on whether you start with glucose from blood or glycogen storage form glucose from blood cell use ATP to make it glucose 6 phosphate more often tap into glycogen interact with phosphate becomes glucose 6 phosphate by adding a phosphate doesn t cost an ATP end up with pyruvate lactate first intermediate What glycogen looks like o Legos o Glucose molecules all tacked together and branching off from one another Glycolysis energy investment phase o 1st



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