isometric period of cardiac cycle
The period in the cardiac cycle, extending from the closing of the atrioventricular valves to the opening of the semilunar valves, in which the muscle fibers do not shorten.
Zoom Through “Spin Class” With These 10 Cycling TermsCycling no doubt courses throughout our life and culture, but so does the language of the sport and activity. So, strap on your helmets: we're going to spin through some of the zippiest terms in cycling, past and present.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.