Dictionary > Muscle fatigue

Muscle fatigue

(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.
Muscle fatigue results when there is tissue oxygen deprivation, glycogen or phosphocreatine depletion, and increased level of blood and muscle lactic acid in an exercised muscle.

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