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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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

10.

College of Healthcare Sciences, Campus Townsville, James Cook University, Townsville, Australia

11.

INISA, Graduate Program of Movement Sciences, Campus Campo Grande, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil

12.

Research and Development Department, iLOAD Solutions, Campo Grande, Mato Grosso do Sul, Brazil

13.

Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain

14.

Department of Sport and Health, Spanish Agency for Health Protection in Sport (AEPSAD), Madrid, Spain

15.

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 Attribution Share Alike 4.0 License (https://creativecommons.org/licenses/by-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and remix, transform, and build upon the material for any purpose, even commercially, provided the original work is properly cited and states its license.

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