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KIN 3600

midterm 2 quizes

QuestionAnswer
T/F - Training for marathon increases: myoglobin, number and size of mitochondria, activity and concentration of key enzymes in Krebs and etc, glycogen stores, and ability to utilize fatty acids. True
T/F - The main adaptations to short duration high intensity training such as spring training are increased stores of muscle ATP and C_, ATPase, isocitrate dehydrogenase, CPK False
T/F - Oxygen deficit is the difference between oxygen demand and supply during an exercise bout or the oxygen equivalent of energy supplied by the anaerobic metabolic system plus the extra oxygen extracted from the body’s Oxygen stores True
T/F - When you start exercising ATP use increases. True
Topic is oxygen kinetics: When you start running at a low intensity (5mph) what occurs during the onset of exercise (approx first 3min)? oxygen consumption is increasing to try to meet ATP demand
Which of the following is true about the incremental phase of a steady state exercise? -ATP/CP systems are suppling energy for the exercise -the incremental phase is known as O2 deficit which is the difference between O2 demand and supply during exercise -anaerobic glycogenolytic supplies energy for exercise -O2 is extracted from body
When we start to exercise specifically during steady state exercise Vo2 takes some time to increase. Which of the following contributes to O2 consumption NOT increasing immediately at the onset of exercise? -Q10 effect -Time needed to increase positive modulators
T/F - During the plateau phase (reaching steady state) energy demand of the exercise is completely met by the aerobic phosphorylation True
T/F During steady state O2 demand is equal to O2 supply True
T/F - Excess Post-Exercise Oxygen Consumption is the same amount as O2 deficit False
What allows for EPOC to be greater than O2 deficit? -Extra O2 consumed by the heart which has higher than resting-level activity following the termination of exercise -Extra O2 consumed following the end of exercise due to high body temp (Q10 effect) -Extra O2 : hormonal stimulation of metabolism
T/F - Following exercise we continue to breath "faster" and "deeper" this is known as EPOC and the purpose of EPOC is to exclusively pay back energy borrowed to replenish what we used. False
Comparing the following exercising list in order from lowest O2 deficit to the greatest. Exercise A. Running around the track as fast as you can, Exercise B .walking around the track 2 times and Exercise C. Running 5mph for 15 minutes (low intensity) Exercise B C and then A
list the order of highest to lowest when comparing EPOC for the the following exercising Exercise A. Running around the track as fast as you can, Exercise B .walking around the track 2 times and Exercise C. Running 5mph for 15 minutes (low intensity) Exercise A C B
What would the result be of a warm up before a low intensity run around the rose bowl? -ATP use would increase, so VO2 would increase -The increase of VO2 before the start of the actual run would decrease O2 deficit
You just got on a treadmill running at low intensity what does not supply energy for the first couple of minutes? O2
If I were to test your VO2max by exercising you on a cycle ergometer and increasing how hard the cycling bout got ever 2 minutes what kind of protocol is this? GXT or multiple stages
During your pacer, shuttle or beep test there came a point where exercise became difficult and painful in the legs O. B. L. A. is thought to be one of the mechanisms that causes this. Why does lactate start to accumulate -There is a production of lactate that is to high it cannot be removed quick enough - anaerobic glycolysis is occurring at a fast rate - Hormonal stimulation of glycolysis (Fight-or-Flight) over and above the capacity of Glycerophosphate shuttle
What is Respiratory Exchange Ratio? ratio of the rate of CO2 expired to O2 consumed
Which of the following allows for direct calorimetry to measure energy? direct linear relationship between the rate of heat liberated by the body and the metabolic rate
Created by: rmart11