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A theory that suggests that regular exercise can improve the blood supply to the heart by coronary collateral vascularization and thus reduce the risk of heart attack. It is suggested that when a coronary artery is blocked, additional arteries can form a natural by-pass from one side of the blocked artery to the other.
From: coronary collateral circulation theory in The Oxford Dictionary of Sports Science & Medicine »
Subjects: Sports and Exercise Medicine.
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