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Int J Sports Med 2020; 41(14): 1047-1055
DOI: 10.1055/a-1171-2287
Training & Testing

Validity of Using Velocity to Estimate Intensity in Resistance Exercises in Men and Women

Fernando Pareja-Blanco 
1   Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
,
Simon Walker 
2   NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
,
Keijo Häkkinen
2   NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
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Abstract

This study aimed to examine the validity of using bar velocity to estimate relative load in squat and bench-press exercises for both young men and women. Twenty-five men and 25 women performed a progressive loading test up to 1-RM in the squat and bench-press exercises, which were repeated after 2-weeks. Relationships between mean propulsive velocity and%1-RM were analysed. A second-order polynomial equation for predicting the corresponding velocity of each percentage of 1-RM was developed for men (validation). This equation was then applied in women (cross-validation). Moreover, a specific equation for women was developed (validation) and was also applied in a sub-sample of women (cross-validation). Close relationships (R2: 0.91–0.95) between bar velocity and relative load were observed in both sexes for squat and bench press. Men’s equation applied to women showed a high level of agreement, although lower bias and higher level of agreement was observed when a sex-specific equation was applied in women, both validation and cross-validation samples. In conclusion, lifting velocity can be used to accurately prescribe the relative load regardless of sex in both upper-body and lower-body exercises, although when estimating load from velocity measures it will be necessary to use the sex-specific equation for each exercise.

Key words

loading intensity - velocity-based training - maximal strength - one-repetition maximum - athletic performance - gender


Publication History

Received: 19 November 2019

Accepted: 21 April 2020

Article published online:
20 July 2020

© 2020. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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