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Muscle Fiber Research Paper

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Writing Assignment 1
1. Discuss the relationship between distribution of muscle fiber type and performance. How might exercise training modify or change a person’s fiber-type distribution? Muscle fiber types as we understand have two types which are type I and type II. Type I is which is also called the slow twitching muscles has the ability to generate high amount of force. Type II are fast twitching muscles which generate a lower amount of force. Type I fibers take approximately 110 ms to reach peak tension when stimulated. Type II fibers, on the other hand, can reach peak tension in about 50 ms. (Wilmore, J., 2008) According to the article in http://www.brianmac.co.uk/, called “Muscle Type”, Type I muscle fibers are mostly found in the …show more content…

The liver synthesizes glycogen from glucose which is process called glycogenesis. After that process, glycogen or glucose must be converted to glucose-6-phosphate before energy can be generated. Glucose-1-phosphate is converted to glucose-6-phosphate. Glycolysis requires 10 to 12 enzymatic reactions for the breakdown of glycogen to pyruvic acid, which is then converted to lactic acid. All steps in the pathway and all of the enzymes involved operate within the cell cytoplasm. (Wilmore, J.) For each glycogen broken down, the result is 3 molecules of ATP.
3. Describe how a nerve impulse is transmitted along its axon. Nerve impulses are a results of chemicals of neurotransmitters along the neurons dendrites and soma. Understanding that this occurs throughout our body since nerves are connected all over. The neurotransmitter begins the stimulation by opening the neuron. The action along an axon of a neuron is an interchange of Sodium and Potassium ions, which propagates the impulse the action potential. (http://hyperphysics.phy) The transfer of sodium and potassium ions between the nerve cells is a process during nerve impulse. The process begins

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