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12 Cards in this Set
- Front
- Back
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Summary:what is the substrate for the initial burst, anaerobic, and aerobic periods?
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initial-creatine phosphate
anaerobic- carbs aerobic-carbs till run out, then fats |
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What are the mechanisms of creatine?
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1) increases intra-cellular creatine levels (in muscle cells)
2) increases inta-cellular water content (makes muscle look bigger 3) increase muscle growth (some from water)--increases training |
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There is no evidence that creatine prevents ____________ or ______
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muscle damage or soreness
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does eating a low carb diet deplete glycogen in muscles?
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no! EXERCISE then load with complex carb diet.
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What's the best source of heme-iron?
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meat (non-heme iron = plants)
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Which is more safe? ferrous or ferric acid? which one can be absorbed in intestinal lumen?
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ferric safer, but ferrous can only be absorbed
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What are factors that affect iron absorption?
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1) acidity (+)- vinegar--increase availability of iron
2) meat, poultry, fish factor (+) converts ferric--> ferrous..add meat to salad 3) fiber (-) doesnt allow conversion |
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What does transferitin do?
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carries iron from the feritin (protein) to blood. then goes to liver and liver stores transferitin as a protein (feritin) then its sent to bone marrow
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What's EPO?
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An illegal substance that will enhance performance by increasing the amount of hemoglobin
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how is protoporphyrin used as an indicator of amount of iron in blood?
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if protoporphyrin high, iron low
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What happens if iron is low in body?
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transferitin and ferritin less saturated--> increased absorption of iron
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What percent of all women are anemic? do they respond to iron supplementation?
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20-30%...yes
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