Naclerio, Fernando ORCID: https://orcid.org/0000-0001-7405-4894, Larumbe-Zabala, Eneko, Chapman, Annaliese, Gonzalez-Frutos, Pablo and Triplett, N. Travis (2025) Comparable workout output by using velocity feedback or perceived exertion in male and female recreationally resistance trained individuals. The Journal of Strength and Conditioning Research (JSCR). ISSN 1064-8011 (Print), 1533-4287 (Online) (In Press)

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Abstract

We compared an objective [velocity feedback (VEL)] vs. a subjective [rating of perceived exertion (RPE)] autoregulatory method to estimate velocity drop thresholds associated with low (10%), moderate (20%) metabolic fatigue, and muscular endurance (40%) during continuous sets in the back squat (BSQ) exercise using either 50% or 75% of the 1 repetition maximum (1RM). After five sessions of familiarization and determining the 1RM, nineteen males (24.5±6 years) and nine females (30.4±8 years) underwent two identical six-day testing sessions over two weeks (twelve sessions) using the VEL (first six sessions) or the RPE method (last six sessions). The assessments of velocity thresholds and relative loads was randomized for each 6-day testing period. The average velocity (AV) and the OMNI�RES (0–10) scale scores were measured for every repetition of each set. Under VEL, sets ended after completing two consecutive repetitions below the target threshold. A linear mixed-effects model setting velocity thresholds, method, and their interaction as fixed effects, and participants as random components was conducted. Although no significant differences between methods were identified for the percentage of velocity decrease and the total number of repetitions completed per set, compared to VEL, under the RPE method, fewer repetitions were completed below the thresholds for both 50% and 75% 1RM (p<0.01 and g>1 in all cases). In conclusion, both methods, VEL and RPE, seem useful for estimating velocity changes during continuous sets of BSQ. However, the RPE method allowed for fewer unnecessary repetitions when squatting until 10%, 20% and 40% of velocity decrease.

Item Type:	Article
Uncontrolled Keywords:	strength exercises, squat, OMNI-RES (0-10) scale, objective and subjective autoregulatory methods
Subjects:	G Geography. Anthropology. Recreation > GV Recreation Leisure Q Science > Q Science (General) Q Science > QP Physiology R Medicine > RC Internal medicine > RC1200 Sports Medicine
Faculty / School / Research Centre / Research Group:	Faculty of Education, Health & Human Sciences Faculty of Education, Health & Human Sciences > School of Human Sciences (HUM)
Last Modified:	22 Aug 2025 13:07
URI:	https://gala.gre.ac.uk/id/eprint/50942

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