Squat and countermovement jump performance across a range
of loads: a comparison between Smith machine and free weight 
execution modes in elite sprinters

Irineu Loturco; Michael McGuigan; Tomás T. Freitas; Fábio Nakamura; Daniel Boullosa; Pedro Valenzuela; Lucas A. Pereira; Fernando Pareja-Blanco

doi:10.5114/biolsport.2022.112085

eISSN: 2083-1862
ISSN: 0860-021X

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4/2022
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Original paper

Squat and countermovement jump performance across a range of loads: a comparison between Smith machine and free weight execution modes in elite sprinters

Irineu Loturco

^{1, 2, 3}

,

Michael R. McGuigan

^{4, 5}

,

Tomás T. Freitas

^{1, 2, 6, 7}

,

Fábio Y. Nakamura

^{8, 9}

,

Daniel A. Boullosa

^{10, 11, 12}

,

Pedro L. Valenzuela

^{13, 14}

,

Lucas A. Pereira

^{1, 2}

,

Fernando Pareja-Blanco

¹⁵

NAR – Nucleus of High Performance in Sport, São Paulo, Brazil
Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil
University of South Wales, Pontypridd, Wales, United Kingdom
Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand
School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
UCAM Research Center for High Performance Sport, Catholic University of Murcia, Murcia, Spain
Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University Institute of Maia (ISMAI), Maia, Portugal
Associate Graduate Program in Physical Education Universidade de Pernambuco (UPE)/Universidade Federal da Paraíba (UFPB), João Pessoa, Brazil
College of Healthcare Sciences, Campus Townsville, James Cook University, Townsville, Australia
INISA, Graduate Program of Movement Sciences, Campus Campo Grande, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
Research and Development Department, iLOAD Solutions, Campo Grande, Mato Grosso do Sul, Brazil
Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
Department of Sport and Health, Spanish Agency for Health Protection in Sport (AEPSAD), Madrid, Spain
Physical Performance & Sports Research Center, Pablo de Olavide University, Seville, Spain

Biol Sport. 2022;39(4):1043–1048

DOI: https://doi.org/10.5114/biolsport.2022.112085

Online publish date: 2022/01/25

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AMA

Loturco I, McGuigan MR, Freitas T, et al. Squat and countermovement jump performance across a range
of loads: a comparison between Smith machine and free weight 
execution modes in elite sprinters. Biology of Sport. 2022;39(4):1043-1048. doi:10.5114/biolsport.2022.112085.

APA

Loturco, I., McGuigan, M. R., Freitas, T., Nakamura, F. Y., Boullosa, D. A.,  & Valenzuela, P. L. et al. (2022). Squat and countermovement jump performance across a range
of loads: a comparison between Smith machine and free weight 
execution modes in elite sprinters. Biology of Sport, 39(4), 1043-1048. https://doi.org/10.5114/biolsport.2022.112085

Chicago

Loturco, Irineu, Michael R McGuigan, Tomás T. Freitas, Fábio Y Nakamura, Daniel A Boullosa, Pedro L Valenzuela,  and Lucas A. Pereira et al. 2022. "Squat and countermovement jump performance across a range
of loads: a comparison between Smith machine and free weight 
execution modes in elite sprinters". Biology of Sport 39 (4): 1043-1048. doi:10.5114/biolsport.2022.112085.

Harvard

Loturco, I., McGuigan, M., Freitas, T., Nakamura, F., Boullosa, D., Valenzuela, P., Pereira, L.,  and Pareja-Blanco, F. (2022). Squat and countermovement jump performance across a range
of loads: a comparison between Smith machine and free weight 
execution modes in elite sprinters. Biology of Sport, 39(4), pp.1043-1048. https://doi.org/10.5114/biolsport.2022.112085

MLA

Loturco, Irineu et al. "Squat and countermovement jump performance across a range
of loads: a comparison between Smith machine and free weight 
execution modes in elite sprinters." Biology of Sport, vol. 39, no. 4, 2022, pp. 1043-1048. doi:10.5114/biolsport.2022.112085.

Vancouver

Loturco I, McGuigan M, Freitas T, Nakamura F, Boullosa D, Valenzuela P et al. Squat and countermovement jump performance across a range
of loads: a comparison between Smith machine and free weight 
execution modes in elite sprinters. Biology of Sport. 2022;39(4):1043-1048. doi:10.5114/biolsport.2022.112085.

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Copyright: Institute of Sport. This is an Open Access article distributed under the terms of the Creative Commons CC BY License (https://creativecommons.org/licenses/by/4.0/). This license enables reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as attribution is given to the creator. The license allows for commercial use.

Squat and countermovement jump performance across a range of loads: a comparison between Smith machine and free weight execution modes in elite sprinters

Irineu Loturco 1, 2, 3 , Michael R. McGuigan 4, 5 , Tomás T. Freitas 1, 2, 6, 7 , Fábio Y. Nakamura 8, 9 , Daniel A. Boullosa 10, 11, 12 , Pedro L. Valenzuela 13, 14 , Lucas A. Pereira 1, 2 , Fernando Pareja-Blanco 15

Irineu Loturco

^{1, 2, 3}

,

Michael R. McGuigan

^{4, 5}

,

Tomás T. Freitas

^{1, 2, 6, 7}

,

Fábio Y. Nakamura

^{8, 9}

,

Daniel A. Boullosa

^{10, 11, 12}

,

Pedro L. Valenzuela

^{13, 14}

,

Lucas A. Pereira

^{1, 2}

,

Fernando Pareja-Blanco

¹⁵