Concurrent and Predictive Validity of an Exercise-Specific Scale for the Perception of Velocity in the Back Squat

Ruggero Romagnoli, Sergio Civitella, Carlo Minganti and Maria Francesca Piacentini
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Ruggero Romagnoli: Department of Human Movement and Health Sciences, University of Rome “Foro Italico”, 00135 Rome, Italy
Sergio Civitella: Department of Human Movement and Health Sciences, University of Rome “Foro Italico”, 00135 Rome, Italy
Carlo Minganti: Department of Human Movement and Health Sciences, University of Rome “Foro Italico”, 00135 Rome, Italy
Maria Francesca Piacentini: Department of Human Movement and Health Sciences, University of Rome “Foro Italico”, 00135 Rome, Italy

IJERPH, 2022, vol. 19, issue 18, 1-10

Abstract: Background: the aim of the study was to develop and validate a specific perception velocity scale for the Back Squat exercise to discriminate the velocity of each repetition during a set. Methods: 31 resistance trained participants completed 3 evaluation sessions, consisting of 3 blinded loads (light, medium, heavy). For each repetition, barbell mean velocity (Vr) was measured with a linear position transducer while perceived velocity (Vp) was reported using the Squat Perception of Velocity (PV) Scale. Results: Pearson correlation coefficients (r) showed very high values for each intensity in the 3 different days (range r = 0.73–0.83) and practically perfect correlation for all loads (range r = 0.97–0.98). The simple linear regression analysis between Vp and Vr revealed values ranging from R 2 = 0.53 to R 2 = 0.69 in the 3 intensities and values ranging from R 2 = 0.95 to R 2 = 0.97 considering all loads. The reliability (ICC 2 .1 , SEM) of Vp was tested for light (0.85, 0.03), medium (0.90, 0.03) and heavy loads (0.86, 0.03) and for all loads (0.99, 0.11). The delta score (ds = Vp ? Vr) showed higher accuracy of the PV at heavy loads. Conclusions: these results show that the PV Squat Scale is a valid and reliable tool that can be used to accurately quantify exercise intensity.

Keywords: resistance training; velocity-based training; autoregulation training; 1-RM; load-velocity; concurrent validity; reliability; perceived velocity scale (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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