Explain the chemical process of cramps.After a particularly strenuous exercise session, a man experiences severe cramps in his thighs and pain in his biceps. Explain the chemical process that...

Explain the chemical process of cramps.

After a particularly strenuous exercise session, a man experiences severe cramps in his thighs and pain in his biceps. Explain the chemical process that occurred in his muscle cells to cause this discomfort. Explain the chemical reactions that have possibly taken place in his body after the exercise.

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trophyhunter1 | College Teacher | (Level 1) Educator Emeritus

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Aerobic respiration provides energy to cells in the form of the high energy compound adenosine triphosphate or A.T.P. However, during strenuous exercise, the muscles may need extra A.T.P. molecules not provided by aerobic respiration alone. Stored in the muscles is glycogen. It gets converted back to glucose when extra energy is needed and anaerobic respiration occurs in the muscles. For each molecule of glucose that is fermented, 2 molecules of ATP are produced and the waste product lactic acid. This lactic acid build up can cause the discomfort felt in the muscles after a work out. To counter this, it is suggested to not stop after a workout, rather, to do a stretches and a cool-down activity, to allow the lactic acid time to break down. It is carried away by the circulating blood to the liver where it is converted back to pyruvate.

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topalle | Student, Grade 10 | (Level 1) Honors

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When a person works very hard, oxygen demad is high. Therefore, lungs cannot supply that much oxygen. this causes anaerobic respiration              

 glycolysis(cytoplasm of cells)

1 Glucose----------------------------------->  2 Pyruvic acid

                       cellular respiration (mitochondria)

1 Pyruvic acid----------------------------------->Lactic  Acid + CO2                      

                              in abscence of oxygen

 

This lactic acid accumulates in the muscle fibers. This causes pain and is called a cramp.

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