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Exercise induced Fatigue (EIF)

Sports fatigue

A new study suggests that the prolonged fatigue after mild exercise that occurs in people with many forms of muscular dystrophy is distinct from the inherent muscle weakness caused by the disease. Exercise necessitates a large supply of O(2) and nutrients and rapid removal of CO(2) and waste products. Histamine is a regulator of the microcirculation (which performs these exchanges), suggesting a possible involvement of histamine in exercise. Histamine is released from either mast cells or non-mast cells. In the latter, histamine is newly formed via the induction of histidine decarboxylase (HDC) in response to an appropriate stimulus, and it is released without being stored.