Muscle Fatigue Report

Muscle fatigue occurs when the muscle fibres can no longer sustain this process and achieve the desired movement (in the case of this experiment hold the isometric contraction). Often muscle fatigue is the result of the demand for oxygen becoming greater than the supply, terminating or slowing the aerobic contraction. During the contraction, the muscle swells decreasing the flow of blood and thus the oxygen availability, almost like a tourniquet. However, this tourniquet also traps the bi products of the sliding filament model reaction and lactic acid begins to build up. This lactic acid is a prominent factor that indirectly causes muscle fatigue. Lactic acid is produced because of an increased dependency on glycolysis to generate energy to