The Cost of Preparing for the Boston Marathon. Running is free â and surprisingly cost-efficient in the long term. But if you need a little help, there are marathon training resources available for a price. According to a 2015 article by RunnersWorld.com, a running coach can cost $50 to $200 per month.
inhibitor. 1  a person or thing that inhibits. 2  Chemistry. a substance that decreases the rate of or stops completely a chemical reaction. 3  any impurity in a mineral that prevents luminescence. Compare activator (def 3). 4  Rocketry. an inert antioxidant used with solid propellants to inhibit burning on certain surfaces.
1 They may just slow down the reaction or stop it altogether. 2  Some inhibitors bond with the enzyme causing it to change shape and not work correctly. 3  The opposite of an inhibitor is an activator which can help to speed up the reaction. 4  Enzymes don't get used up after they do their job. 5  They can be used over and over.