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Olfa Turki, Wissem Dhahbi, Sabri Gueid, Sami Hmaied, Marouen Souaifi and Riadh Khalifa

. Furthermore, in 8 professional British badminton athletes, a loaded warm-up was shown to positively affect COD speed but not vertical jump performance. 14 Authors observed enhanced COD speeds when using vests loaded at 5% and 10% BM, compared with an unloaded condition. 14 Specifically, the investigators 14

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Raúl Reina, Aitor Iturricastillo, Rafael Sabido, Maria Campayo-Piernas and Javier Yanci

the form of vertical jumping (VJ) has been deemed to be important for optimal performance in football and is considered in testing for fitness variation and talent selection. 2 However, because many activities in football (ie, acceleration capacity and change of direction ability) require a high

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Peter A. van de Hoef, Jur J. Brauers, Maarten van Smeden, Frank J.G. Backx and Michel S. Brink

-oriented jump exercises instead of only vertical jump exercises. A combination of vertical plus horizontal jump exercises seems to be more effective than solely vertical jump exercises in improving jump height. 19 Sprint Speed Sprint tests over 5 distances were assessed. Plyometric training significantly

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Oliver Gonzalo-Skok, Alejandro Moreno-Azze, José Luis Arjol-Serrano, Julio Tous-Fajardo and Chris Bishop

current study was to compare the effects of performing different unilateral strength training interventions on unilateral horizontal, triple unilateral horizontal, bilateral and unilateral vertical jumping, and their related asymmetries in young soccer players. Methods Subjects Forty-five male young (U-17

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João Ribeiro, Luís Teixeira, Rui Lemos, Anderson S. Teixeira, Vitor Moreira, Pedro Silva and Fábio Y. Nakamura

a growing interest in developing training programs that specifically enhance performance during these powerful activities. Several strength–power training strategies result in significant soccer-specific physical performance changes, typically assessed by vertical jump, straight-line sprint, and

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Kevin L. de Keijzer, Stuart A. McErlain-Naylor, Antonio Dello Iacono and Marco Beato

exercise in terms of the kinematic and kinetic variables associated with the movements and the muscle actions involved. 8 , 9 Among other methodologies, eccentric overload (EOL) exercise has consistently proven to be effective for acutely improving horizontal and vertical jumping performance. 5 , 10 , 11

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Ramón Marcote-Pequeño, Amador García-Ramos, Víctor Cuadrado-Peñafiel, Jorge M. González-Hernández, Miguel Ángel Gómez and Pedro Jiménez-Reyes

matches. 3 Therefore, due to the undeniable importance of vertical jumps and linear sprints in soccer competitions, researchers have focused on describing the performance of soccer players during these actions as well as on enhancing vertical jump and sprint capabilities through training interventions. 6

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Jeffrey D. Simpson, Ludmila Cosio-Lima, Eric M. Scudamore, Eric K. O’Neal, Ethan M. Stewart, Brandon L. Miller, Harish Chander and Adam C. Knight

completed 3 CMJ on the force platform separated by 30-second rest periods between trials. To ensure participants were jumping in the vertical direction, a Vertec (Knoxville, TN) was placed adjacent to the force platform as a target for the CMJ attempts. The second vertical jump test consisted of 2 trials of

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Malachy P. McHugh, Tom Clifford, Will Abbott, Susan Y. Kwiecien, Ian J. Kremenic, Joseph J. DeVita and Glyn Howatson

-Sensor 2; BTS Bioengineering, Brooklyn, NY). As described previously, participants started the movement standing upright with hands on their hips, and after a verbal cue, descended into a squat (countermovement) prior to performing a maximal effort vertical jump. Participants performed 3 maximal efforts

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Yassine Negra, Helmi Chaabene, Senda Sammoud, Olaf Prieske, Jason Moran, Rodrigo Ramirez-Campillo, Ali Nejmaoui and Urs Granacher

young male soccer players (aged 16 y), reporting better improvements in vertical jumping performance in LPJT group (Δ9.4% and 8.4% for squat jump [SJ] and CMJ, respectively, in LPJT group; Δ4.6% and 5% for the SJ and CMJ in UPJT group, respectively). Recently, Coratella et al 14 studied the effects of