Gowoon wants to be a long-distance runner and participate in competitions on her high school track and field team. Describe the specific type of skeletal muscle fiber which will help her excel at her sport. What type of training should she perform to
enhance the capabilities of this particular fiber type?
What will be an ideal response?
Type I fibers are slow-twitch fibers that can maintain extended periods of contraction. Since these fibers use large quantities of ATP to maintain contractions, they utilize oxidative catabolism. Oxidative catabolism can provide ATP for hours. Myoglobin present in these muscle fibers binds oxygen to help supply the oxidative generation of ATP. Gowoon should focus on endurance training which will result in an increase in the number of mitochondria and a greater blood supply (more blood vessels). Endurance training helps type I muscles utilize resources to make ATP and resist fatigue.
You might also like to view...
How can one induce LTP at synapses between Schaffer collaterals and CA1 pyramidal cell dendrites?
a. strong, high-frequency stimulation of Schaffer collaterals b. depolarize post?synaptic membrane along with brief stimulation of axons of CA3 pyramidal cells c. apply glutamate to bath, and depolarize CA1 pyramidal cell neuron d. all of above
ATP and adenosine can act as neurotransmitters ________.
A. after being used for energy by the cell B. when released by adrenergic neurons during sympathetic activation C. when no ACh is available D. All of the choices are correct.
Simple up and down movement of the head (the "yes" motion) occurs primarily at the joint(s) between
A. the sphenoid bone and the occipital bone. B. the occipital bone and the first cervical vertebra. C. the first and second cervical vertebrae. D. all of the cervical vertebrae in combination.
The study of the external form of the body and its relationship to deeper structures is
A. systemic anatomy. B. regional anatomy. C. molecular biology. D. microbiology. E. surface anatomy.