lec 22
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| increase % SO | show 🗑
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| increase % FT | show 🗑
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| show | 50% / 50%
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| show | - Myogenic or intrinsic factors
- Length-tension relationship
- Force-velocity relation
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| Length-tension relationship | show 🗑
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| show | The amount of force developed during muscular contractions also depend on the velocity of the contraction
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| ^ Contraction | show 🗑
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| show | ^ Velocity
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| show | larger peak force
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| ST contracts what? | show 🗑
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| show | the highest amount of force (isometric)
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| show | maximal force when velocity is 0
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| o VMax | show 🗑
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| Why do FT contract @ higher velocity? - What is the underlying mechanism? | show 🗑
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| what makes a muscle develop force faster | show 🗑
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| show | Ca++ released
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| ^ Ca++ = | show 🗑
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| FG fibers develop force @ higher rate | show 🗑
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| show | FG fibers
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| Ca++ Re-uptake is also faster in what | show 🗑
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| show | Limb does not move but muscle contracts
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| Dynamic (isotonic) Action | show 🗑
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| Concentric muscular action | show 🗑
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| Eccentric muscular action | show 🗑
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| Isokinetic muscular action | show 🗑
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| show | its forcibility being stretched
- Eccentric
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| Power-velocity Relationship | show 🗑
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| show | results in v Power output
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| show | the velocity of muscular action @ which the P.O. is maximal
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| show | FT have ^higher P.O. than S.O.
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| @ any P.O | show 🗑
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| Effect of FG on the power velocity relationship during concentric muscular action | show 🗑
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| Highest Power output achieved at | show 🗑
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| show | @ any given velocity the P.O. is greater in a muscle with higher % of FT fibers
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| The peak power of muscles increases with what? | show 🗑
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| In vivo | show 🗑
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| show | 1. BY regulating the # of motor units recruited into action – up to 100-fold increase the force output
2. By regulating the force output via increasing the firing frequency of a motoneurons (Rate coding - 4-fold)
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| Specific training | show 🗑
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| show | Both strength & endurance training
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| Type IIa --> I | show 🗑
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| Endurance training | show 🗑
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Created by:
rmart11
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