Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises

Petrus Gantois; Fabiano de Souza Fonseca; Fábio Yuzo Nakamura; Leonardo de Sousa Fortes; Jaime Fernandez-Fernandez; Gilmário Ricarte Batista

doi:10.5114/biolsport.2023.112966

eISSN: 2083-1862
ISSN: 0860-021X

Biology of Sport

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1/2023
vol. 40

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abstract:

Original paper

Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises

Petrus Gantois

¹

,

Fabiano de Souza Fonseca

^{2, 3}

,

Fábio Yuzo Nakamura

^{1, 4}

,

Leonardo de Sousa Fortes

¹

,

Jaime Fernandez-Fernandez

⁵

,

Gilmário Ricarte Batista

¹

Associate Graduate Program in Physical Education UPE/UFPB. João Pessoa-PB, Brazil
Federal Rural University of Pernambuco (UFRPE), Recife-PE, Brazil
Graduate Program in Physical Education UFPE, Recife-PE, Brazil
Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia (ISMAI), Maia, Portugal
Department of Physical Activity and Sport Sciences, Universidad de León, León, Spain

Biol Sport. 2023;40(1):201–208.

DOI: https://doi.org/10.5114/biolsport.2023.112966

Online publish date: 2022/02/18

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AMA

Gantois P, de Souza Fonseca F, Nakamura F, de Sousa Fortes L, Fernandez-Fernandez J, Ricarte Batista G. Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises. Biology of Sport. 2023;40(1):201-208. doi:10.5114/biolsport.2023.112966.

APA

Gantois, P., de Souza Fonseca, F., Nakamura, F., de Sousa Fortes, L., Fernandez-Fernandez, J.,  & Ricarte Batista, G. (2023). Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises. Biology of Sport, 40(1), 201-208. https://doi.org/10.5114/biolsport.2023.112966

Chicago

Gantois, Petrus, Fabiano de Souza Fonseca, Fábio Yuzo Nakamura, Leonardo de Sousa Fortes, Jaime Fernandez-Fernandez,  and Gilmário Ricarte Batista. 2023. "Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises". Biology of Sport 40 (1): 201-208. doi:10.5114/biolsport.2023.112966.

Harvard

Gantois, P., de Souza Fonseca, F., Nakamura, F., de Sousa Fortes, L., Fernandez-Fernandez, J.,  and Ricarte Batista, G. (2023). Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises. Biology of Sport, 40(1), pp.201-208. https://doi.org/10.5114/biolsport.2023.112966

MLA

Gantois, Petrus et al. "Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises." Biology of Sport, vol. 40, no. 1, 2023, pp. 201-208. doi:10.5114/biolsport.2023.112966.

Vancouver

Gantois P, de Souza Fonseca F, Nakamura F, de Sousa Fortes L, Fernandez-Fernandez J, Ricarte Batista G. Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises. Biology of Sport. 2023;40(1):201-208. doi:10.5114/biolsport.2023.112966.

PlumX metrics:

The aim of this study was to analyse the load-velocity and load-power relationships in the freeweight back-squat (BSQ) and hexagonal bar deadlift (HBD) exercises. Twenty-five (n = 25) resistance-trained men (age = 23.7±2.8 years) performed a progressive load test at maximal intended velocity to determine their BSQ and HBD one-repetition maximum (1RM). Mean propulsive velocity (MPV) during the concentric phase of the lift was recorded through a linear encoder. Load-velocity and load-power relationships were analysed by fitting linear regression and the second-order polynomial, respectively, to the data. Maximum strength (1RM), MPV (30–80% 1RM), and power output (30–90% 1RM) were higher for HBD compared to BSQ exercise (p < 0.05). A very strong relationship between MPV and relative intensity was found for both BSQ (R2 = 0.963) and HBD (R2 = 0.967) exercises. The load that maximizes power output (Pmax) was 64.6±2.9% (BSQ) and 59.6±1.1% (HBD) 1RM. There was a range of loads at which power output was not different than Pmax (BSQ: 40–80% 1RM; HBD: 50–70% 1RM). In conclusion, the load-velocity and load-power relationships might assist strength and conditioning coaches to monitor and prescribe exercise intensity in the BSQ and HBD exercises using the velocity based training approach.

keywords:

Analysis of velocity- and power-load relationships of the free-weight back-squat and hexagonal bar deadlift exercises

Petrus Gantois 1 , Fabiano de Souza Fonseca 2, 3 , Fábio Yuzo Nakamura 1, 4 , Leonardo de Sousa Fortes 1 , Jaime Fernandez-Fernandez 5 , Gilmário Ricarte Batista 1

Kinematic, Resistance exercise, Velocity-based training, Power output, Strength testing

Petrus Gantois

¹

,

Fabiano de Souza Fonseca

^{2, 3}

,

Fábio Yuzo Nakamura

^{1, 4}

,

Leonardo de Sousa Fortes

¹

,

Jaime Fernandez-Fernandez

⁵

,

Gilmário Ricarte Batista

¹