What process causes fatigue-related byproducts in the anaerobic glycolytic system?

The process that leads to the accumulation of fatigue-related byproducts in the anaerobic glycolytic system is glycolysis. In this context, glycolysis refers to the metabolic pathway that converts glucose into pyruvate, producing energy in the form of ATP without the use of oxygen. When exercise intensity is high and the demand for ATP exceeds the capacity of the aerobic system, the body relies on anaerobic glycolysis.

As glycolysis proceeds under anaerobic conditions, it results in the production of lactate and hydrogen ions. The accumulation of lactate and hydrogen ions is closely associated with muscle fatigue because they can lead to a decrease in pH within the muscle cells, disrupting enzymatic functions and contributing to the sensation of fatigue.

The other processes listed do not directly contribute to the same fatigue-related byproducts in the same manner. Oxidative phosphorylation occurs in aerobic conditions and primarily produces ATP with minimal lactate formation. Fatty acid oxidation is a more prolonged energy system, utilized in lower-intensity activities, and also does not produce lactate. Lastly, adenosine triphosphate hydrolysis refers to the breakdown of ATP to release energy, which is a component of all metabolic processes but does not specifically lead to the accumulation of byproducts that cause