Gearhart, Randall F Ratings of perceived exertion in active muscle during high-intensity and low-intensity resistance exercise. [electronic resource] - Journal of strength and conditioning research Feb 2002 - 87-91 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article ISSN: 1064-8011 Subjects--Topical Terms: AdultArm--physiologyExercise--psychologyFemaleHumansLeg--physiologyMaleMuscle, Skeletal--physiologyPhysical Education and Training--methodsWeight Lifting--psychology