Sprint and vertical jumps are widely used training methods to develop speed–power abilities ( Markovic et al., 2007 ), which are important for successful performance in a range of team sports, martial arts, and track and field ( Dal Pupo et al., 2021 ; Kons et al., 2018 ; Loturco, Nakamura et
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Effect of Vertical Jump and Sprint Training on Power and Speed Performance Transfer
Rodrigo Ghedini Gheller, Rafael Lima Kons, Juliano Dal Pupo, and Daniele Detanico
Effects of Static Hamstring Stretching on Maximal Sprint Speed and Relationship With Nordic Hamstring Strength
Yusuke Ozaki and Takeshi Ueda
The incidence of hamstring strain injuries (HSIs) increases during maximal sprint speed (MSS), such as in track races, soccer, and rugby ( Ruddy et al., 2018 ). During the late swing phase (from maximal hip flexion to ground contact) in the MSS, the length and strain of the hamstring muscle
A Study of the Effects of Motor Experience on Neuromuscular Control Strategies During Sprint Starts
Zhengye Pan, Lushuai Liu, Yuan Sun, and Yunchao Ma
Motor performance at sprint start is a critical determinant of overall sprint performance ( Cavedon et al., 2022 ). During the starting process, sprinters not only need to initiate acceleration smoothly in a very short period of time but also need to complete the transition from static crouching to
Front Crawl Sprint Performance: A Cluster Analysis of Biomechanics, Energetics, Coordinative, and Anthropometric Determinants in Young Swimmers
Pedro Figueiredo, Ana Silva, António Sampaio, João Paulo Vilas-Boas, and Ricardo J. Fernandes
The aim of this study was to evaluate the determinants of front crawl sprint performance of young swimmers using a cluster analysis. 103 swimmers, aged 11- to 13-years old, performed 25-m front crawl swimming at 50-m pace, recorded by two underwater cameras. Swimmers analysis included biomechanics, energetics, coordinative, and anthropometric characteristics. The organization of subjects in meaningful clusters, originated three groups (1.52 ± 0.16, 1.47 ± 0.17 and 1.40 ± 0.15 m/s, for Clusters 1, 2 and 3, respectively) with differences in velocity between Cluster 1 and 2 compared with Cluster 3 (p = .003). Anthropometric variables were the most determinants for clusters solution. Stroke length and stroke index were also considered relevant. In addition, differences between Cluster 1 and the others were also found for critical velocity, stroke rate and intracycle velocity variation (p < .05). It can be concluded that anthropometrics, technique and energetics (swimming efficiency) are determinant domains to young swimmers sprint performance.
Effects of Warm-Up Training on Psychomotor Vigilance and Repeated-Sprint Ability of Professional Soccer Referees: A Pilot Study
Mateu Busquets-Ferrer, Francisco Tomás González-Fernández, Filipe Manuel Clemente, and Alfonso Castillo-Rodriguez
). There are high physical and physiological demands on SRs (e.g., experiencing around 80% of the average heart rate during 90 min of competition, covering distances greater than 8 km) who, like soccer players, develop high-speed sprints (greater than 21 km/hr) with incomplete recoveries ( Castillo
High-Intensity Forward-Backward Plyometrics After the Warm-Up Entail Better Sprint and Change-of-Direction Performance Than Low-Intensity Side-to-Side Plyometrics
Karim Ben Ayed, Raouf Hammami, Javier Gene-Morales, Amira Ajailia, Hanen Werfelli, Haithem Rebai, Pablo Jiménez-Martínez, Jorge Flandez, and Juan C. Colado
activations play a paramount role during the jumping, and this mechanism is a key component also during volleyball-specific actions such as COD, short shuttle runs, and sprint activities ( Sheppard et al., 2007 ). In addition, high-intensity plyometric exercises showed higher neuromuscular activation, and
Effect of Different Evasion Maneuvers on Anticipation and Visual Behavior in Elite Rugby League Players
Jonathan D. Connor, Robert G. Crowther, and Wade H. Sinclair
.1371/journal.pone.0037494 10.1371/journal.pone.0037494 Cohen , J. ( 1988 ). Statistical power analysis for the behavioral sciences. Hillsdale, NJ : Lawrence Erlbaum Associates . Gabbett , T.J. ( 2012 ). Sprinting patterns of National Rugby League competition . Journal of Strength and Conditioning
Cognitive and Physical Effects of Warm-Up on Young Soccer Players
Francisco Tomás González-Fernández, Hugo Sarmento, Sixto González-Víllora, Juan Carlos Pastor-Vicedo, Luis Manuel Martínez-Aranda, and Filipe Manuel Clemente
, football is a discipline where multiple explosive actions such as accelerations, decelerations, jumps, changes of direction, and high-speed sprints are interspersed with lower-intensity actions or game phases ( Krustrup & Bangsbo, 2001 ). In this high-demand environment, it is widely accepted that an
Effect of Exercise Intensity on Psychomotor Vigilance During an Incremental Endurance Exercise in Under-19 Soccer Players
Francisco Tomás González-Fernández, Pedro Ángel Latorre-Román, Juan Parraga-Montilla, Alfonso Castillo-Rodriguez, and Filipe Manuel Clemente
The aim of this study was to analyze the acute effects of an incremental resistance test on psychomotor vigilance in 16 soccer players under-19 years old (age 16.42 ± 0.85 years). Borg 15-point subjective perception of effort scale, the psychomotor vigilance task test, and the Yo-Yo intermittent recovery test were used. Four evaluation sessions were conducted with different intensities of efforts (30%–40%, 60%–75%, 80%–90%, and 100%) on different days (counterbalanced order). A repeated-measures analysis of variance was performed in the reaction time of the psychomotor vigilance task. The results showed that participants responded faster during efforts between 80% and 90% of maximal oxygen uptake (501.20 ± 70.77 ms). From that threshold, the players decreased their performance through a longer reaction time (601.23 ± 85.05 ms; p value < .001). The main findings were that the reaction time performance was worse at the lowest and highest effort conditions (5 and 17 km/hr, respectively). This fact helps to focus on the importance of designing and proposing training tasks with medium–high efforts to provoke optimal reaction times in young soccer players.
Holographic Sight Improves the Static Shooting Accuracy and Vertical Sway Precision During High-Intensity Dynamic Action in the Police Task Force
Michal Vágner, Zdeněk Bílek, Karel Sýkora, Vladimír Michalička, Lubomír Přívětivý, Miloš Fiala, Adam Maszczyk, and Petr Stastny
The aim of this study was to find the effect of holographic sight (HS) on short-distance shooting accuracy and precision during static and high-intensity dynamic actions. Twenty policemen (31 ± 2.2 years, 85.6 ± 6.1 kg, and 181.9 ± 4.4 cm) performed five shots in the 10-s limit under the static condition for 20 m and dynamic condition 15–5 m, and after 4 × 10 m sprint action, both with fixed sight (FS) and HS. The analysis of variance post hoc test revealed that HSstatic had higher shouting accuracy than FSstatic, FSdynamic, and HSdynamic (p = .03, p = .0001, and p = .0001, respectively) and FSdynamic had lower precision than FSstatic, HSstatic, and HSdynamic (p = .0003, p = .0001, and p = .01, respectively) in vertical sway. The HS for rifles has improved the accuracy of static shooting and vertical sway precision of dynamic shooting.
