CEIS II Final exam 2023 with complete solution
What happens to force production if the tendon is lengthened?
increased force production because there is more stored energy
What does a longer muscle do to the force production?
Decreased force production.
Which type II fibers fatigue quicker?
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CEIS II Final exam 2023 with complete solution
What happens to force production if the tendon is lengthened?
increased force production because there is more stored energy
What does a longer muscle do to the force production?
Decreased force production.
Which type II fibers fatigue quicker?
Type IIB
What muscle fibers are fatigue resistant?
Slow twitch (Type I)
What type of fibers are used for powerful movements?
Type IIB
What determines population of different muscle fiber types?
Genetics
T/F: Fiber types can change due to training?
True (somewhat)
T/F: muscles can undergo hyperplasia
False: we don't develop new muscle cells
What is it called when we increase the size and number of myofilaments in
muscle?
hypertrophy
If metabolites build up in muscle what will that do to the conduction velocity
decrease conduction velocity
What happens when conduction velocity drops off due to metabolites?
we are forced to recruit more muscles to do the same amount of work
When someone is immobilized for an extended period, what fibers do we see the
most loss in?
Slow Twitch fibers (type I)
In humans, what is the primary mechanism for atrophy?
Aging
Where do you test a two joint muscle
at mid point
Where do you test a 1 joint muscle
close to end range
What is the most painful contraction if there is a contracture?
concentric contraction
What are three methods for quantifying strength?
MMT
Dynamometer
Rep. Maximum
If the MMT is less than 3/5, what would you do?
put into a gravity eliminate position and palpate for muscle activity
T/F: You would still apply resistance if the pt can't reach test position?
False
When does reliability of MMT drop off?
After a grade 3
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