title: Novel Resistance Training-Specific Rating of Perceived Exertion Scale Measuring Repetitions in Reserve.
abstract: The primary aim of this study was to compare rating of perceived exertion (RPE) values measuring repetitions in reserve (RIR) at particular intensities of 1 repetition maximum (RM) in experienced (ES) and novice squatters (NS). Furthermore, this investigation compared average velocity between ES and NS at the same intensities. Twenty-nine individuals (24.0 ± 3.4 years) performed a 1RM squat followed by a single repetition with loads corresponding to 60, 75, and 90% of 1RM and an 8-repetition set at 70% 1RM. Average velocity was recorded at 60, 75, and 90% 1RM and on the first and last repetitions of the 8-repetition set. Subjects reported an RPE value that corresponded to an RIR value (RPE-10 = 0-RIR, RPE-9 = 1-RIR, and so forth). Subjects were assigned to one of the 2 groups: (a) ES (n = 15, training age: 5.2 ± 3.5 years) and (b) NS (n = 14, training age: 0.4 ± 0.6 years). The mean of the average velocities for ES was slower (p ≤ 0.05) than NS at 100% and 90% 1RM. However, there were no differences (p > 0.05) between groups at 60, 75%, or for the first and eighth repetitions at 70% 1RM. In addition, ES recorded greater RPE at 1RM than NS (p = 0.023). In ES, there was a strong inverse relationship between average velocity and RPE at all percentages (r = -0.88, p < 0.001), and a strong inverse correlation in NS between average velocity and RPE at all intensities (r = -0.77, p = 0.001). Our findings demonstrate an inverse relationship between average velocity and RPE/RIR. Experienced squatter group exhibited slower average velocity and higher RPE at 1RM than NS, signaling greater efficiency at high intensities. The RIR-based RPE scale is a practical method to regulate daily training load and provide feedback during a 1RM test.
authors.affiliation: 1Department of Exercise Science and Health Promotion, Muscle Physiology Laboratory, Florida Atlantic University, Boca Raton, Florida; 2Department of Kinesiology and Health Promotion, California State Polytechnic University, Pomona, California; 3Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand; 4Department of Nutrition and Dietetics, Marywood University, Scranton, Pennsylvania; 5Human Potential Centre, Auckland University of Technology, Auckland, New Zealand; and 6Department of Motricity, Human Performance and Sport Management, European University of Madrid, Madrid, Spain.
authors.forename: Michael C
authors.initials: MC
authors.lastname: Zourdos
authors.forename: Alex
authors.initials: A
authors.lastname: Klemp
authors.forename: Chad
authors.initials: C
authors.lastname: Dolan
authors.forename: Justin M
authors.initials: JM
authors.lastname: Quiles
authors.forename: Kyle A
authors.initials: KA
authors.lastname: Schau
authors.forename: Edward
authors.initials: E
authors.lastname: Jo
authors.forename: Eric
authors.initials: E
authors.lastname: Helms
authors.forename: Ben
authors.initials: B
authors.lastname: Esgro
authors.forename: Scott
authors.initials: S
authors.lastname: Duncan
authors.forename: Sonia
authors.initials: S
authors.lastname: Garcia Merino
authors.forename: Rocky
authors.initials: R
authors.lastname: Blanco
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D010465:Perception; D005082:Physical Exertion / Q000502:physiology*; D055070:Resistance Training / Q000379:methods*; D055815:Young Adult