Muscle Fatigue, Adenosine Tri-Phosphate, and Altitude Training

Topics: Adenosine triphosphate, Exercise physiology, Oxygen Pages: 3 (1185 words) Published: July 31, 2013
CA research
1How do muscles get the energy they need to work
All muscles need ATP (ATP is a ‘energy currency’) most of these cell reactions rely on the breakdown of ATP the ways to get atp are to react anaerobically or aerobically. The “ reactions form energy in the format of ATP’’ ATP (also known as adenosine tri-phosphate) is produced. Respiration is conducted from the cell membranes inside the mitochondria. Aerobic respiration provides a lot of energy needed per molecule of glucose (the level of ATP produced can be as high as 38 ATP molecules per 1 molecule of glucose. When the body is exercising intensely respiration happens faster and the muscles need more oxygen. Anerobic respiration uses a reaction of glucose and water to make energy it creates by-products of water and carbon dioxide (glucose + oxygen → carbon dioxide + water (+ ATP or C6H12O6 + 6O2 → 6CO2 + 6H2O) There will come a point when aerobic respiration isn’t enough, the body needs to respire anaerobically. In this glucose is directly broken down ion to ATP by the body this creates a byproduct of lactic acid. (glucose → lactic acid (+ energy released). Aerobic respiration will produce a lot less energy per molecule of glucose This can be best illustrated with the fact that during the anaerobic respiration only two molecules of ATP are yielded for one glucose molecule. 2 the dictionary definition for muscle fatigue is

‘Muscle fatigue
Definition
noun
(physiology) A condition of the muscle in which its capacity to produce maximum voluntary action, or to perform a series of repetitive actions, is reduced. It results when muscle activity exceeds tissue substrate and oxygenation capacity. ‘ We can break this down to say that muscle fatigue is when your muscles cannot perform a task to its full potential or when the body’s muscles cannot produce the same amount of force due to a lesser level of respiration. We can usually say that the body cannot respire anaerobically anymore due to a build-up...
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