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KIN 310

Lecture 3 Exercise Metabolism

QuestionAnswer
__________ ________ indicates ATP demands are being met by oxidative phosphorylation Stead State
The oxygen deficit is the difference in how much oxygen.... vs the amount of.... O2 you need for exercise vs the amount of O2 you are consuming
During the _________ component of EPOC PCr in the muscle is restored and O2 in the muscle and blood is stored Rapid
During the __________ component of EPOC gluconeogeneiss in the liver occurs, body temperature is still increased because metabolism is still at increased activity, hormones are still circulating so cellular activity is still high Slow
The __________ ____________ is the point at which blood lactate levels exponentially increase during exercise Lactate Threshold
Reaching the lactate threshold indicates the body has increased its reliance on ______________ Glycolysis
The following are the causes for the __________ _____________ 1) NADH production may exceed hydrogen shuttle, 2) Recruitment of type 2 fibers, and 3) lactate entry into bloodstream is greater than the rate of lactate clearance Lactate Threshold
20% of lactate is used for ____________________ and 70% of lactate is ___________ __ _________, and 10% of lactate is converted to ___________ __________ gluconeogenesis, oxidized to pyruvate, and amino acids
At low intensity exercise your body is primarily using __________(fats or carbs) as fuel Fats
At moderate intensity exercise your body is using _____________ (Fats or carbs) as fuel? 50% carbs and 50% fats
At long duration moderate intensity exercise your body uses _________(fats or carbs) as fuel Fats
At high intensity exercise your body is using ________ as fuel Carbs
During low intensity exercise your body is using ____________ ________ ________ ____________ as fuel Plasma free fatty acids
During moderate intensity exercise the main fuel sources the body uses are _________ ______ and ____________ ____________ Plasma FFA and muscle glycogen
During high intensity exercise the main fuel source is ____________ _____________ Muscle glycogen
As duration of exercise increases (around 4 hours) the body uses _________ ___________ rather than ____________ _____________ Blood glucose, muscle glycogen
The respiratory exchange ration is ______/_______ VCO2/ VO2
VCO2 is the ____________ of _____ __________ Volume of CO2 produced
VO2 is the _______ of ______ ____________ Volume of O2 consumed
An RER of 0.70 means we are using _____ as fuel Fats
An RER of 0.85 means we are using ____________ as fuel 50% carbs and 50% fats
An RER of 1.00 means we are using ________ as fuel Carbs
Created by: sschichtel
 

 



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