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Open AccessArticle

Relationships between Resisted Sprint Performance and Different Strength and Power Measures in Rugby Players

1
Faculty of Physical Activity and Sports, Universidad de Flores, Pedernera 268, Buenos Aires, Argentina
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Faculty of Sports Sciences, Universidad Pablo de Olavide, Carretera Utrera km 1, 41013 Seville, Spain
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UCAM Research Center for High Performance Sport, Catholic University of Murcia, Campus de los Jerónimos, 30107 Guadalupe, Murcia, Spain
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NAR—Nucleus of High Performance in Sport, São Paulo, SP 04753-070, Brazil
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Department of Human Movement Sciences, Federal University of São Paulo, Butanta, SP 11015-020, Brazil
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Physical Performance & Athletic Research Center, Universidad Pablo de Olavide, Carretera Utrera km 1, 41013 Seville, Spain
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Faculty of Life Sciences and Education, University of South Wales, Pontypridd, Wales CF37 1DL, UK
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Department of Physical Education and Sport Sciences, University of Limerick, V94 T9PX Limerick, Ireland
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Faculty of Sport Sciences, UCAM, Catholic University of Murcia, Campus de los Jerónimos, 30107 Guadalupe, Murcia, Spain
*
Authors to whom correspondence should be addressed.
Sports 2020, 8(3), 34; https://doi.org/10.3390/sports8030034
Received: 3 February 2020 / Revised: 21 February 2020 / Accepted: 27 February 2020 / Published: 14 March 2020
(This article belongs to the Special Issue Physical Performance in Team Sports)
This study aimed to investigate the relationship between a specific isometric-strength sprint test (SIST) and unresisted maximum velocity (Vmax), sprint times across different loading conditions, and the velocity loss (Vloss) loads required to achieve each intended Vloss condition during resisted sprint training (RST) in rugby players. Additionally, the investigation examined the relationship between strength in the back-squat one-repetition maximum (1RM-SQ) as well as isometric squat (ISQT), jumps, and sprint performance variables. Twenty (n = 20) male amateur rugby players performed, on two separate occasions, a structural multiple-joint assessment of jumps, strength, and sprint performance. Interestingly, SIST revealed moderate correlations (r = 0.453 to 0.681; p < 0.05) between 1RM-SQ and ISQT. The SISTrel (relative to body mass), but not SIST, used in the present study showed moderate correlations (r = 0.508 to 0.675; p < 0.05) with the loads needed to reach 10%, 30%, and 50% of Vloss during RST. The SISTrel that measures resultant force application in a more sprint-related position explains much of the individual response of each athlete during sprinting towing a sled and can also be used to prescribe and quantify loads in the RST in a more objective and individual manner. View Full-Text
Keywords: team sports; performance; testing; training; speed team sports; performance; testing; training; speed
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MDPI and ACS Style

Zabaloy, S.; Carlos-Vivas, J.; Freitas, T.T.; Pareja-Blanco, F.; Pereira, L.; Loturco, I.; Comyns, T.; Gálvez-González, J.; Alcaraz, P.E. Relationships between Resisted Sprint Performance and Different Strength and Power Measures in Rugby Players. Sports 2020, 8, 34. https://doi.org/10.3390/sports8030034

AMA Style

Zabaloy S, Carlos-Vivas J, Freitas TT, Pareja-Blanco F, Pereira L, Loturco I, Comyns T, Gálvez-González J, Alcaraz PE. Relationships between Resisted Sprint Performance and Different Strength and Power Measures in Rugby Players. Sports. 2020; 8(3):34. https://doi.org/10.3390/sports8030034

Chicago/Turabian Style

Zabaloy, Santiago; Carlos-Vivas, Jorge; Freitas, Tomás T.; Pareja-Blanco, Fernando; Pereira, Lucas; Loturco, Irineu; Comyns, Thomas; Gálvez-González, Javier; Alcaraz, Pedro E. 2020. "Relationships between Resisted Sprint Performance and Different Strength and Power Measures in Rugby Players" Sports 8, no. 3: 34. https://doi.org/10.3390/sports8030034

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