Einsteinium is radioactive rare earth metal named after Albert Einstein. It is of no commercial importance and only a few of its compounds are known. Einsteinium: historical information. Einsteinium was discovered by Workers at Argonne, Los Alamos, USA, and the University of California at Berkeley, USA. in 1952 at USA. Origin of name: named after Albert Einstein.
gradÂ·ed exÂ·erÂ·cise test. Multistage exercise testing (usually on treadmill or bicycle ergometer) in which exercise intensity is progressively increased (graded) through levels that bring the test subject to a self-imposed fatigue level. See: stress test, Astrand-Ryhming Cycle Ergometer Test.
ratÂ·ing of perÂ·ceived exÂ·erÂ·tion. Subjective numeric rating (range 6-19) of exercise intensity based on how a subject feels in relation to level of physiologic stress. An RPE of 13 or 14 (exercise that feels somewhat hard) coincides with an exercise heart rate of about 70% maximum.