title: Effects of exercise intensity on rating of perceived exertion during a multiple-set resistance exercise session.
abstract: The aim of this study was to analyze the effects of intensity on rating of perceived exertion (RPE) during a multiple-set resistance exercise session. Fourteen men (22.9 ± 3.8 years) with previous experience in resistance training (22.9 ± 3.8 years) performed 2 experimental sessions in random order: resistance exercise at 50% of 1 repetition maximum (1RM) (E50%) and resistance exercise at 70% of 1RM (E70%). In both sessions, 5 exercises (bench press, bent-over row, frontal raises, arm curl, and overhead triceps extension) were performed in 3 sets of 12, 9, and 6 repetitions, respectively. Active muscle RPEs were measured after each repetition using the OMNI-Resistance Exercise Scale (OMNI-RES). In the 3 sets of 5 exercises, the RPE was higher at E70% than that at E50%. The differences in RPE between intensities were observed in both the first and the sixth repetitions for each exercise. In the E70% session, the RPE increased between sets in all exercises, whereas it did not change in the E50% session. In conclusion, the RPE was higher at 70% of 1RM than that at 50% of 1RM. Moreover, in a multiple-set prescription, the RPE did not change between sets with 50% of 1RM, whereas the RPE increased between sets with 70% of 1RM. These findings suggest that RPE can be effectively used to prescribe and monitor resistance exercise intensity during an entire multiple-set exercise session in young men with previous experience in resistance training.
authors.affiliation: School of Physical Education, University of Pernambuco, Recife, Pernambuco, Brazil.
authors.forename: Ozéas de L
authors.initials: Ode L
authors.lastname: Lins-Filho
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Robertson
authors.forename: Breno Q
authors.initials: BQ
authors.lastname: Farah
authors.forename: Sérgio L C
authors.initials: SL
authors.lastname: Rodrigues
authors.forename: Edilson S
authors.initials: ES
authors.lastname: Cyrino
authors.forename: Raphael M
authors.initials: RM
authors.lastname: Ritti-Dias
mesh_terms: D000328:Adult; D015444:Exercise / Q000523:psychology*; D006801:Humans; D008297:Male; D010465:Perception / Q000502:physiology*; D005082:Physical Exertion; D011897:Random Allocation; D055070:Resistance Training; D055815:Young Adult