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maximum velocity



  1. the maximum rate of an enzyme-catalyzed reaction that can be achieved by progressively increasing the substrate concentration at a given enzyme concentration; in cases of substrate inhibition, Vmax is an extrapolated value in the absence of such inhibition;
  2. the maximum initial rate of shortening of a myocardial fiber that can be obtained under zero load; used to evaluate the contractility of the fiber.
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.