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15 Cards in this Set
- Front
- Back
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Muscle twitch has how many phases? What are they?
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Three phases:
Lag phase Contraction Relaxation |
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What is summation?
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Increasing force of contraction of muscle fiber.
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What is recruitment?
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Increasing the number of muscle fibers contracting.
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What is tetanus?
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Sustained contraction that is immediately followed by another, hence the muscle does not reurn to a resting state (due to increased frequency of stimuli), the effects are added
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What is fatigue?
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Muscle eventually runs out of ATP, fibers cannot contract.
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What is a characteristic of unfused (incomplete) tetanus?
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Some relaxation occurs between contractions, the result is summation.
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The force produced in _______ _______ stimulates receptor and membrane sensitivities to ________ factors, including ________ which lead to muscle growth and strength changes
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activated fibers; anabolic; hormones
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______ responses are tightly linked to the characteristics of the ________ _______ protocol.
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hormone; resistance exercise
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Training adaption is an increase in ______ and _______.
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actin, myosin
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______-chain myosin proteins can change in their structure from type IIb to IIa.
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Heavy
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Non-________ proteins are changed in order to establish structural integrity.
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contractile
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Hormones are involved in the ______ of protein and ______ mechanisms.
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synthesis; degradation
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Anabolic hormones promote tissue building;
1. 2. 3 4. |
1. insulin
2. insulin-like growth factor 3. testosterone 4. growth hormone |
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Anabolic hormones also block the catabolic hormones; ______ and _______ which degrade muscle protein to support gluconeogenesis.
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cortisol; progesterone
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ahpp
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jklds;a
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