title: Ratings of perceived exertion of ACSM exercise guidelines in individuals varying in aerobic fitness.
abstract: The physiological responses of high (HF) and low fit (LF) individuals at given perceived exercise intensities were compared to ranges provided by the American College of Sports Medicine (ACSM). Participants were 7 LFand 8 HF men between the ages of 22 and 26 years. All participants performed a maximum oxygen uptake and lactate threshold test and two 15-min experimental runs in which they exercised at a constant perceived exercise intensity (RPE 13 and 17). The LF group exhibited significantly greater maximum oxygen uptake reserve ( % VO2R, p < .05) and velocity of lactate threshold (p < .01) values than HF at RPE 13 and 17. Both groups had significantly greater % VO2R and maximum heart rate values at RPE 13 in comparison with the ACSM ranges, using the highest value for the given range (p < or = .001).
authors.affiliation: School of Health, Physical Education, Recreation, and Dance, University of Nebraska, Omaha, USA. kauf0127@umn.edu
authors.forename: Christopher
authors.initials: C
authors.lastname: Kaufman
authors.forename: Kris
authors.initials: K
authors.lastname: Berg
authors.forename: John
authors.initials: J
authors.lastname: Noble
authors.forename: James
authors.initials: J
authors.lastname: Thomas
mesh_terms: D000328:Adult; D017408:Guidelines as Topic; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D009329:Nebraska; D010101:Oxygen Consumption / Q000502:physiology; D005082:Physical Exertion / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D012420:Running / Q000502:physiology; D013178:Sports Medicine
chemical_list: D019344:Lactic Acid