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Adam Beard, John Ashby, Ryan Chambers, Franck Brocherie, and Grégoire P. Millet

This may have good carryover to rugby union, which has a high number of repeated-sprint requirements. 2 Although RSA training is well accepted to improve this quality, 5 utilizing RSA in hypoxic conditions (the so-called “repeated-sprint training in hypoxia,” [RSH]) has shown superior results when

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Filippo Dolci, Andrew E. Kilding, Tania Spiteri, Paola Chivers, Ben Piggott, Andrew Maiorana, and Nicolas H. Hart

and in turn, guide the selection and development of training strategies to preserve soccer running performance over the duration of a game. For this reason, the aim of this study was to determine acute SRE responses to repeated-sprint activities (RSAs) in soccer players and identify via correlational

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Jonathan M. Taylor, Tom W. Macpherson, Iain R. Spears, and Matthew Weston

The ability to repeatedly perform sprints has traditionally been viewed as a key performance measure in team sports, and the relationship between repeated-sprint ability (RSA) and performance has been explored extensively. However, when reviewing the repeated-sprint profile of team-sports match play it appears that the occurrence of repeated-sprint bouts is sparse, indicating that RSA is not as important to performance as commonly believed. Repeated sprints are, however, a potent and time-efficient training strategy, effective in developing acceleration, speed, explosive leg power, aerobic power, and high-intensity-running performance—all of which are crucial to team-sport performance. As such, we propose that repeated-sprint exercise in team sports should be viewed as an independent variable (eg, a means of developing fitness) as opposed to a dependent variable (eg, a means of assessing fitness/performance).

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Mohamed Romdhani, Nizar Souissi, Imen Moussa-Chamari, Yassine Chaabouni, Kacem Mahdouani, Zouheir Sahnoun, Tarak Driss, Karim Chamari, and Omar Hammouda

Several studies have reported that physical performances are affected by partial sleep deprivation (PSD). 1 – 6 PSD reduces aerobic intermittent, 1 , 2 time to exhaustion, 3 , 4 short-term all-out, 5 and repeated sprint 6 performances. Several studies have found that PSD caused by awakening at

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James R. Broatch, David J. Bishop, and Shona Halson

Repeated-sprint exercise (RSE) is characterized by multiple efforts of brief (≤6-s) maximal or near-maximal exercise, interspersed with relatively short (≤60-s) moderate-/low-intensity recovery periods. 1 This activity pattern is common to many team sports and is considered an integral component

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Martina A. Maggioni, Matteo Bonato, Alexander Stahn, Antonio La Torre, Luca Agnello, Gianluca Vernillo, Carlo Castagna, and Giampiero Merati

properly with strong evidence-based support. Ball-drills and repeated sprint ability training have begun to be widely used by coaches to improve physical fitness. 7 Ball-drills training consists of a series of short duration matches with a small number of players and which replicate match-like technical

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Callum G. Brownstein, Derek Ball, Dominic Micklewright, and Neil V. Gibson

Repeated sprints are an effective and time-efficient method of training team-sport athletes ( 29 ). Studies investigating the use of repeated sprints on performance, recovery, and metabolic response have attempted to optimize the training stimulus by varying work-to-rest ratios ( 20 ), numbers of

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Myles C. Dennis, Paul S.R. Goods, Martyn J. Binnie, Olivier Girard, Karen E. Wallman, Brian T. Dawson, and Peter Peeling

mechanical power output. Determining this equilibrium is important when aiming to maximize training outcomes. Repeated-sprint training in hypoxia (RSH) involves the repetition of “all-out” efforts of short (≤30 s) duration interspersed with brief recoveries in oxygen (O 2 )-deprived conditions. 3 This

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Brian Dawson

Repeated-sprint ability (RSA) is now well accepted as an important fitness component in team-sport performance. It is broadly described as the ability to perform repeated short (~3–4 s, 20–30 m) sprints with only brief (~10–30 s) recovery between bouts. Over the past 25 y a plethora of RSA tests have been trialed and reported in the literature. These range from a single set of ~6–10 short sprints, departing every 20–30 s, to team-sport game simulations involving repeating cycles of walk-jog-stride-sprint movements over 45–90 min. Such a wide range of RSA tests has not assisted the synthesis of research findings in this area, and questions remain regarding the optimal methods of training to best improve RSA. In addition, how RSA test scores relate to player “work rate,” match performance, or both requires further investigation to improve the application of RSA testing and training to elite team-sport athletes.

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Pedro L. Valenzuela, Guillermo Sánchez-Martínez, Elaia Torrontegi, Javier Vázquez-Carrión, Manuela González, Zigor Montalvo, and Grégoire P. Millet

Repeated-sprint ability is a major determinant of performance in intermittent sports (eg, team and racket sports). 1 Repeated-sprint training (RS) has shown to be effective for performance enhancement in these sports, increasing maximal oxygen uptake and peak and mean speed during a repeated-sprint