1 Flashcards
(24 cards)
Ergometry
Measurement of work output
Kcal/min
(VO2)(5 kcal/L O2)
MET
Resting metabolic rate
1 MET = 3.5 ml/kg min
Net efficiency
(Work output/energy expenditure)(100)
Running economy
ml O2/kg km
Gain
Efficiency/capability
Adaption
Acclimation
Change in structure of function
Adaption to environmental stress
Kinases
Add a phosphate group
Dehydrogenases
Remove hydrogen atoms
Oxidase
Catalyze redox reactions involving oxygen
Isomerases
Rearrange the structure of a molecule
Glucose ➡️ glycogen
Glycogenesis
Catalyzed by glycogen synthase
Glycogen ➡️ glucose
Glycogenolysis
Breaking down of triglycerides
Lipolysis
Enzymes helping - lipase
Cellular respiration
Process of energy production within a cell
Enzyme of phosphocreatine system
Creatine kinase
CHO stores
400g muscle
100g liver
3g blood
Enzymes of glycolysis (know where they go too)
Hexokinase, phosphfructokinase (rate lim.), glycogen phosphorylase
How do we get rid of lactic acid?
70% oxidized and used by heart and liver
20% converted to glucose by liver (cori cycle)
10% converted to amino acids
Lactate threshold (anaerobic threshold)
The exercise intensity at which there is an abrupt increase in blood lactate
Rate limiting enzyme of Krebs cycle
Isocitrate dehydrogenase
Rate limiting enzyme of ETC
Cytochrome oxidase
Efficiency of glucose metabolism
34% (66% released as heat)
Lipid catabolism
Triglyceride broken down into free fatty acids, pumped by FAT into muscle cell, pumped into mito by CTP, undergoes beta-oxidation to form acetyl CoA
