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47 Cards in this Set
- Front
- Back
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myoplasticity |
changes in muscle structure as a result of change in function related to physical training. |
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skeletal muscles are... |
amitotic |
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amitotic |
doesn't undergo mitosis. |
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satellite cells |
like a population of stem cells for muscles. Theycan reproduce. They help repair damaged or injured skeletal muscles. |
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how skeletal muscles change in form is directly related to.. |
how you move them. |
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do skeletal muscles change the number of muscle fibers? |
no. |
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endurance training. |
long distance runners. Swimmers. Long distancecyclists. |
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for endurance training.. how does the motor units respond. |
increased rate in which they are activated |
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endurance training helps with.. but not.. |
longer times. not more weight. |
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how do we tell if a person does endurance training.. |
increased level of oxidative enzymes |
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what type of training is this: increased fatigue resistance |
endurance training. |
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the blood vessel network for endurance training.. |
increased |
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endurance training and use of fatty acids and non-glucose fuels for ATP production are... |
more efficient |
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resistance/ strength training... what is their motor unit activation? |
moderate increase in frequency. |
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strength training does what to force production? |
large increase |
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what do you do with strength training? |
few repetitions. heavier weights. |
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strength training causes (noticable/nonnoticable) |
noticeable. |
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strength training... myofibrils and diameter of muscle fibers |
increase |
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hypertrophy |
number of myofibrils and the diameter of the muscle fibers increase. |
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strength training.. how does it change motor unit activation? |
Moderate increase in frequency of motor unitactivation and large increase in force production. |
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how does your endurance respond to strength training? |
decreased endurance |
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how does strength training change the proportion of mitochondrial proteins and blood supply to the skeletal muscle? |
decreased. with fiber enlargement. |
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muscle atrophy |
decreased muscles. muscles and bones get weaker. |
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sarcopenia |
loss of muscle mass |
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disuse of skeletal muscles causes a... |
decrease in number of myofibrils and the size of fiber and decrease in oxidative enzymes. |
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disuse results as a |
decline in both strength and endurance |
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"Use it or lose it" has to do with |
skeletal muscles |
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atrophy is a problem for.. |
bedridden individuals. or those who have lost the use of limbs. |
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what type of physical training occurred? |
endurance training |
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what type of physical training occurred? |
resistance training |
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what type of physical training occurred? |
disuse. |
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what physical training causes an increased number of blood vessels? |
endurance training |
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what type of training causes an increased number of mitochondria and their proteins? |
endurance training |
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what type of training causes increased number of myofibrils? |
resistance training |
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what type of training causes increased diameter of muscle fiber and myofibrils? |
resistance training |
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what physical training causes decreased oxidative enzymes? |
disuse |
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what physical training causes decreased number of myofibrils and decreased diameter of muscle fibers? |
disuse |
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fatigue |
the inability to maintain a given level of intensity during activity. |
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depletion of key metabolites involved in ATP production can lead to . |
Muscular fatigue |
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decreased availability of oxygen to muscle fibers can cause |
Muscular fatigue |
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accumulation of some chemicals in the fiber (Ca++, ADP and Phospahte) can cause |
Muscular fatigue |
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extreme heat, sweating in response to heat may cause electrolyte disturbances and cause |
Muscular fatigue |
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recovery period: |
time after exercising to return to pre-exercise state. |
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increased rate of breathing in the recovery period is called |
excess post exercise oxygen consumption (EPOC) |
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EPOC is called.. |
excessive post-exercise oxygen consumption |
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what does EPOC do? |
allows the body to recover from exercise induced homeostatic imbalances... |
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what all in included in exercise induced homeostatic imbalance? |
body temp intracellular and extracellular ion concentrations blood pH balances. |
