Predicting loading intensity measuring velocity in barbell hip thrust exercise

Author Identifier

Sophia Nimphius

https://orcid.org/0000-0002-3524-0245

Document Type

Journal Article

Publication Title

Journal of Strength and Conditioning Research

Publisher

National Strength and Conditioning Association

School

School of Medical and Health Sciences / Centre for Exercise and Sports Science Research

RAS ID

29996

Comments

de Hoyo, M., Núñez, F. J., Sañudo, B., Gonzalo-Skok, O., Muñoz-López, A., Romero-Boza, S., ... Nimphius, S. (2021). Predicting loading intensity measuring velocity in barbell hip thrust exercise. Journal of Strength and Conditioning Research, 35(8), 2075-2081.

https://doi.org/10.1519/JSC.0000000000003159

Abstract

The barbell hip thrust is an increasingly used exercise to target the hip extensors. Direct and indirect measurement of 1 repetition maximum (1RM) to determine the relative load of each exercise is time-consuming; therefore, practitioners may be more in favor of monitoring velocity and determining relative load through velocity-based prediction models for an exercise. This study aimed to assess the relationship between mean velocity (MV) and mean propulsive velocity (MPV) at different relative training loads (%1RM) in the barbell hip thrust exercise. One hundred two male sport science students performed an incremental 1RM testing protocol for the barbell hip thrust exercise, and a linear position transducer measured MV and MPV of the barbell. The 1RM was reached at 0.25 ± 0.03 m·s−1, and the regression model generated to estimate a relative load showed an acceptable standard error of estimate (7.01 ± 1.05% 1RM and 7.36 ± 1.05% 1RM for MV and MPV, respectively) with a very large explained variance (R2 = 0.94). These results may have important practical applications for the prescription and monitoring of the accessory exercise of the hip thrust for monitoring training load and predicting 1RM without undertaking a RM test.

DOI

10.1519/JSC.0000000000003159

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Link to publisher version (DOI)

10.1519/JSC.0000000000003159