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7 Cards in this Set
- Front
- Back
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What is a motor unit?
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Consists of nerve cell and all the muscles that nerve cell communicates with
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What is its purpose and what determines its size?
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Starts movement and it is determined by its task
eyes = small ; arm = big |
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What is recruitment?
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More motor units to get job done
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What is the all-or-none principle?
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Several muscle fibers in communication wtih 1 nerce cell.
all muscles will contract or none will |
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What are different types of muscle fibers and when do we use certain types?
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Slow twitch (SO)= aerobic
Fast twitch (FG)= anaerobic Fast twitch (FOG)= used for anaerobic and aerobic |
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Can we, through trainig, change our fiber type?
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No
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Can you dtermine which fiber type would have higher amoutns of stored ATP, stored fat, mitochondria; etc
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Look at I: IV graph
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