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27 Cards in this Set
- Front
- Back
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What type of pregame meal will best help the performance of a professional football player?
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Anything mild and easily digested
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What is the most painfull running event in track and field? Why?
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800M dash. exhaustion of rapid glycolosis
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During intense exercise, ATP is immediately synthesized from what?
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Phosphocreatine
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During recovery, ______ ________ replenish the muscles' ATP stores
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dietary nutrients
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Why do 100M dash runners do interval training (only 20M off the blocks, rinse and repeat)?
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To build up ATP stores in the muscles (muscles anticipate ATP demand and store more)
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Why is pyruvate converted to lactate during anaerobic energy production?
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To prevent a bottleneck in the NAD/NADH cycle
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Hitting a wall in marathon corresponds to depletion of what energy system?
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slow glycolylisis (muscle glycogen)
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If your body needs 5mmolATP/kg what energy system will support it?
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ALL OF THEM! (super emphasis added)
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During rest, what two energy systems are PREDOMINANTLY in control?
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slow glysolysis, fat oxidation
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During VERY INTENSE exercise, what is the energy system PREDOMINANTLY in control?
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ATP-PC system (highest power yield)
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During MODERATELY INTENSE exercise, what is the energy system PREDOMINANTLY in control?
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Rapid Glycolysis
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During LOW-MODERATELY INTENSE exercise, what is the energy system PREDOMINANTLY in control?
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Slow Glycolysis (with a little bit of fat oxidation)
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Which muscle type gets the lowest amount of power from the ATP-PC system?
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Slow Twitch Red (Type I)
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Athletes in events tapping significantly into what energy system benefit the most from fat adaptation/carb loading?
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slow glycolysis (marathon runners)
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Would you expect diastolic pressure to increase during aerobic exercise?
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No. Red Flag!
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What are the four components (in order) of the exercise bout?
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warm-up -> stretch -> conditioning -> cool-down
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what should be the target heart rate for strength training?
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doesn't matter. heart rate not a factor in strength training of non-cardiac patients (pile on the weight, boys!)
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Will women ever be as good at sports as men are?
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no (unless they cheat)
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What type of muscular adaptations are seen in power lifters?
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Increased muscle fiber area (fast twitch), Increased fast twitch/slow twitch area ratio, decreased capillaries/mm^2 of muscle
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What type of muscular adaptations are seen in endurance athletes?
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decreased %fast twitch fiber, increased capillaries/fiber and increased capillaries/mm^2 of muscle
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How are muscles adapted to become a different type?
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cross innervation
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What type of muscle would you expect to be most hypertrophied in a body builder?
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Type IIb (white fast twitch)
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does the P:O (ATP/O2) ratio change with training?
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no
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what happens to glucagon levels with training?
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decrease
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what happens to insulin sensitivity with training?
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increases (exercise benefits the insulin insensitive obese)
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What happens to blood lactate levels during exercise with training?
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decrease
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Lower heart rate after training is the result of what?
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increased stroke volume
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