A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union...

Autores
Zabaloy, Carlos Santiago; Healy, Robin; Pereira, Lucas A.; Tondelli, Eduardo; Tomaghelli, Luciano; Aparicio, Juan; Vega, Franco; Medrano, Joaquín; Giráldez, Julián; Comyns, Thomas; Freitas, Tomás T.; Loturco, Irineu
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study aimed to compare: 1) the effects of a 4-week unresisted vs. resisted sprint training programs (UST and RST with 50% body mass, respectively) on both resisted and unresisted sprint performance; and 2) the effects of these sprint training schemes on various strength-power measures (i.e., one-repetition maximum [1RM] and the isometric squat test (ISqT), eccentric hamstring strength in the Nordic hamstring exercise [NHE], and vertical and horizontal jump distances). Thirty-five under-19 male academy rugby players participated in the study and were randomly assigned to one of the two training groups. Players’ unresisted and resisted (50% BM) 30-m sprint performance, squat 1RM, ISqT, NHE, and jump capabilities were tested on different occasions. Only UST produced a significant reduction in unresisted 30-m sprint time (p < 0.05), whereas both groups exhibited significant changes in resisted sprint times at 10 m and 30 m, as well as maximum velocity (p < 0.005; ES: large). Regarding strength measures, RST led to significant increases in ISqT peak force, horizontal jump distance, and NHE strength (p < 0.011; ES: large). Overall, no significant differences were detected between UST and RST in any of the primary or secondary measures after the intervention. Both training methods were equally effective in improving resisted sprint performance in youth male rugby players. Moreover, UST and RST could be effective options for maintaining or even improving various neuromuscular measures (e.g., dynamic-explosive, isometric, and eccentric strength) when lower limb resistance training is reduced during the competitive season due to the congested schedule.
Fil: Sanchez-Ottado, Gastón R. Universidad Católica San Antonio de Murcia; España.
Fil: Spyrou, Konstantinos. Universidad Católica San Antonio de Murcia; España.
Fil: Pereira, Lucas A. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.
Fil: Alcaraz, Pedro E. Universidad Católica San Antonio de Murcia; España.
Fil: Zabaloy, Carlos Santiago. Universidad de Flores; Argentina.
Fil: Loturco, Irineu. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.
Fil: Loturco, Irineu. Universidad de São Paulo; Brasil.
Fil: Loturco, Irineu. University of South Wales; Inglaterra.
Fil: Freitas, Tomás T. Universidad Católica San Antonio de Murcia; España.
Fil: Freitas, Tomás T. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.
Materia
RENDIMIENTO ATLETICO
VELOCIDAD
ENTRENAMIENTO DEPORTIVO
DEPORTISTAS
RUGBY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
Repositorio Institucional de la Universidad de Flores
Institución
Universidad de Flores
OAI Identificador
oai:repositorio.uflo.edu.ar:20.500.14340/2957
Acceder
id RIUFLO_e317f2712d07e2bf08273fa8ea75b42e
oai_identifier_str oai:repositorio.uflo.edu.ar:20.500.14340/2957
network_acronym_str RIUFLO
repository_id_str
network_name_str Repositorio Institucional de la Universidad de Flores
spelling A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union playersZabaloy, Carlos SantiagoHealy, RobinPereira, Lucas A.Tondelli, EduardoTomaghelli, LucianoAparicio, JuanVega, FrancoMedrano, JoaquínGiráldez, JuliánComyns, ThomasFreitas, Tomás T.Loturco, IrineuRENDIMIENTO ATLETICOVELOCIDADENTRENAMIENTO DEPORTIVODEPORTISTASRUGBYThis study aimed to compare: 1) the effects of a 4-week unresisted vs. resisted sprint training programs (UST and RST with 50% body mass, respectively) on both resisted and unresisted sprint performance; and 2) the effects of these sprint training schemes on various strength-power measures (i.e., one-repetition maximum [1RM] and the isometric squat test (ISqT), eccentric hamstring strength in the Nordic hamstring exercise [NHE], and vertical and horizontal jump distances). Thirty-five under-19 male academy rugby players participated in the study and were randomly assigned to one of the two training groups. Players’ unresisted and resisted (50% BM) 30-m sprint performance, squat 1RM, ISqT, NHE, and jump capabilities were tested on different occasions. Only UST produced a significant reduction in unresisted 30-m sprint time (p < 0.05), whereas both groups exhibited significant changes in resisted sprint times at 10 m and 30 m, as well as maximum velocity (p < 0.005; ES: large). Regarding strength measures, RST led to significant increases in ISqT peak force, horizontal jump distance, and NHE strength (p < 0.011; ES: large). Overall, no significant differences were detected between UST and RST in any of the primary or secondary measures after the intervention. Both training methods were equally effective in improving resisted sprint performance in youth male rugby players. Moreover, UST and RST could be effective options for maintaining or even improving various neuromuscular measures (e.g., dynamic-explosive, isometric, and eccentric strength) when lower limb resistance training is reduced during the competitive season due to the congested schedule.Fil: Sanchez-Ottado, Gastón R. Universidad Católica San Antonio de Murcia; España.Fil: Spyrou, Konstantinos. Universidad Católica San Antonio de Murcia; España.Fil: Pereira, Lucas A. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.Fil: Alcaraz, Pedro E. Universidad Católica San Antonio de Murcia; España.Fil: Zabaloy, Carlos Santiago. Universidad de Flores; Argentina.Fil: Loturco, Irineu. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.Fil: Loturco, Irineu. Universidad de São Paulo; Brasil.Fil: Loturco, Irineu. University of South Wales; Inglaterra.Fil: Freitas, Tomás T. Universidad Católica San Antonio de Murcia; España.Fil: Freitas, Tomás T. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.Termedia2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfurn:issn:1640-5544https://hdl.handle.net/20.500.14340/2957enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Atribución 4.0 Internacional (CC BY 4.0)reponame:Repositorio Institucional de la Universidad de Floresinstname:Universidad de Flores2025-12-18T10:14:59Zoai:repositorio.uflo.edu.ar:20.500.14340/2957instacron:UFLOInstitucionalhttps://repositorio.uflo.edu.ar/Universidad privadahttps://www.uflouniversidad.edu.ar/https://repositorio.uflo.edu.ar/server/oai/gabriela.rizzo@uflouniversidad.edu.arArgentinaopendoar:2025-12-18 10:14:59.74Repositorio Institucional de la Universidad de Flores - Universidad de Floresfalse
dc.title.none.fl_str_mv A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
title A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
spellingShingle A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
Zabaloy, Carlos Santiago
RENDIMIENTO ATLETICO
VELOCIDAD
ENTRENAMIENTO DEPORTIVO
DEPORTISTAS
RUGBY
title_short A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
title_full A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
title_fullStr A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
title_full_unstemmed A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
title_sort A randomized controlled trial of unresisted vs. heavy resisted sprint training programs : Effects on strength, jump, unresisted and resisted sprint performance in youth rugby union players
dc.creator.none.fl_str_mv Zabaloy, Carlos Santiago
Healy, Robin
Pereira, Lucas A.
Tondelli, Eduardo
Tomaghelli, Luciano
Aparicio, Juan
Vega, Franco
Medrano, Joaquín
Giráldez, Julián
Comyns, Thomas
Freitas, Tomás T.
Loturco, Irineu
author Zabaloy, Carlos Santiago
author_facet Zabaloy, Carlos Santiago
Healy, Robin
Pereira, Lucas A.
Tondelli, Eduardo
Tomaghelli, Luciano
Aparicio, Juan
Vega, Franco
Medrano, Joaquín
Giráldez, Julián
Comyns, Thomas
Freitas, Tomás T.
Loturco, Irineu
author_role author
author2 Healy, Robin
Pereira, Lucas A.
Tondelli, Eduardo
Tomaghelli, Luciano
Aparicio, Juan
Vega, Franco
Medrano, Joaquín
Giráldez, Julián
Comyns, Thomas
Freitas, Tomás T.
Loturco, Irineu
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv RENDIMIENTO ATLETICO
VELOCIDAD
ENTRENAMIENTO DEPORTIVO
DEPORTISTAS
RUGBY
topic RENDIMIENTO ATLETICO
VELOCIDAD
ENTRENAMIENTO DEPORTIVO
DEPORTISTAS
RUGBY
dc.description.none.fl_txt_mv This study aimed to compare: 1) the effects of a 4-week unresisted vs. resisted sprint training programs (UST and RST with 50% body mass, respectively) on both resisted and unresisted sprint performance; and 2) the effects of these sprint training schemes on various strength-power measures (i.e., one-repetition maximum [1RM] and the isometric squat test (ISqT), eccentric hamstring strength in the Nordic hamstring exercise [NHE], and vertical and horizontal jump distances). Thirty-five under-19 male academy rugby players participated in the study and were randomly assigned to one of the two training groups. Players’ unresisted and resisted (50% BM) 30-m sprint performance, squat 1RM, ISqT, NHE, and jump capabilities were tested on different occasions. Only UST produced a significant reduction in unresisted 30-m sprint time (p < 0.05), whereas both groups exhibited significant changes in resisted sprint times at 10 m and 30 m, as well as maximum velocity (p < 0.005; ES: large). Regarding strength measures, RST led to significant increases in ISqT peak force, horizontal jump distance, and NHE strength (p < 0.011; ES: large). Overall, no significant differences were detected between UST and RST in any of the primary or secondary measures after the intervention. Both training methods were equally effective in improving resisted sprint performance in youth male rugby players. Moreover, UST and RST could be effective options for maintaining or even improving various neuromuscular measures (e.g., dynamic-explosive, isometric, and eccentric strength) when lower limb resistance training is reduced during the competitive season due to the congested schedule.
Fil: Sanchez-Ottado, Gastón R. Universidad Católica San Antonio de Murcia; España.
Fil: Spyrou, Konstantinos. Universidad Católica San Antonio de Murcia; España.
Fil: Pereira, Lucas A. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.
Fil: Alcaraz, Pedro E. Universidad Católica San Antonio de Murcia; España.
Fil: Zabaloy, Carlos Santiago. Universidad de Flores; Argentina.
Fil: Loturco, Irineu. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.
Fil: Loturco, Irineu. Universidad de São Paulo; Brasil.
Fil: Loturco, Irineu. University of South Wales; Inglaterra.
Fil: Freitas, Tomás T. Universidad Católica San Antonio de Murcia; España.
Fil: Freitas, Tomás T. Núcleo de Alto Rendimento Esportivo de São Paulo; Brasil.
description This study aimed to compare: 1) the effects of a 4-week unresisted vs. resisted sprint training programs (UST and RST with 50% body mass, respectively) on both resisted and unresisted sprint performance; and 2) the effects of these sprint training schemes on various strength-power measures (i.e., one-repetition maximum [1RM] and the isometric squat test (ISqT), eccentric hamstring strength in the Nordic hamstring exercise [NHE], and vertical and horizontal jump distances). Thirty-five under-19 male academy rugby players participated in the study and were randomly assigned to one of the two training groups. Players’ unresisted and resisted (50% BM) 30-m sprint performance, squat 1RM, ISqT, NHE, and jump capabilities were tested on different occasions. Only UST produced a significant reduction in unresisted 30-m sprint time (p < 0.05), whereas both groups exhibited significant changes in resisted sprint times at 10 m and 30 m, as well as maximum velocity (p < 0.005; ES: large). Regarding strength measures, RST led to significant increases in ISqT peak force, horizontal jump distance, and NHE strength (p < 0.011; ES: large). Overall, no significant differences were detected between UST and RST in any of the primary or secondary measures after the intervention. Both training methods were equally effective in improving resisted sprint performance in youth male rugby players. Moreover, UST and RST could be effective options for maintaining or even improving various neuromuscular measures (e.g., dynamic-explosive, isometric, and eccentric strength) when lower limb resistance training is reduced during the competitive season due to the congested schedule.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv urn:issn:1640-5544
https://hdl.handle.net/20.500.14340/2957
identifier_str_mv urn:issn:1640-5544
url https://hdl.handle.net/20.500.14340/2957
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Atribución 4.0 Internacional (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Atribución 4.0 Internacional (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Termedia
publisher.none.fl_str_mv Termedia
dc.source.none.fl_str_mv reponame:Repositorio Institucional de la Universidad de Flores
instname:Universidad de Flores
reponame_str Repositorio Institucional de la Universidad de Flores
collection Repositorio Institucional de la Universidad de Flores
instname_str Universidad de Flores
repository.name.fl_str_mv Repositorio Institucional de la Universidad de Flores - Universidad de Flores
repository.mail.fl_str_mv gabriela.rizzo@uflouniversidad.edu.ar
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score 12.665471

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