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Thomas A. Haugen, Felix Breitschädel and Stephen Seiler

performance plateau was observed. In practice, 80% of all players achieved their best performance within 2 trials. Body mass was assessed immediately prior to or after the sprint test on a stationary force platform (model OR6-5-1; AMTI, Watertown, MA). Data from a single player were only included in 1

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

trunk during takeoff was permitted, and maximal flexion of the knees during the takeoff phase of the CMJ was required to be approximately 90°. In both cases, the best trial was used for the statistical analysis. A force platform (9287B; Kistler™, Winterthur, Switzerland) with a frequency of 1000 Hz and

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Carolina F. Wilke, Felipe Augusto P. Fernandes, Flávio Vinícius C. Martins, Anísio M. Lacerda, Fabio Y. Nakamura, Samuel P. Wanner and Rob Duffield

. The CMJ was performed on a force platform (Ergo System; Globus, Treviso, Italy) with a squat until reaching approximately 90° of knee and hip flexion, followed by fast knee and hip extension, keeping the hands in the waist. The mean value of 4 jumps separated by 15 seconds was used for analysis. For

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Davide Ferioli, Andrea Bosio, Johann C. Bilsborough, Antonio La Torre, Michele Tornaghi and Ermanno Rampinini

preceding the neuromuscular evaluations. Both testing sessions were carried out in the same conditions (ie, testing venue, time of the day, and order/procedures of the tests). CMJ Test The CMJ test was performed using a portable force platform (Quattro Jump; Kistler, Winterthur, Switzerland) sampling at 500

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Samuel Ryan, Emidio Pacecca, Jye Tebble, Joel Hocking, Thomas Kempton and Aaron J. Coutts

, Albion, Australia) with a sampling rate of 1000 Hz. Vertical force range was 0 to 1000 kg and resolution of the force platform was 15 g per 15 N. Test–retest reliability was conducted using an identical protocol in the afternoon of a main training day, with tests separated by 5 minutes of passive

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Kym J. Williams, Dale W. Chapman, Elissa J. Phillips and Nick Ball

loading on power output in a squat jump on a force platform: a comparison between strength and power athletes and sedentary individuals . J Sports Sci . 2001 ; 19 ( 2 ): 99 – 105 . PubMed ID: 11217015 doi:10.1080/026404101300036271 10.1080/026404101300036271 35. Cormie P , McCaulley GO , McBride

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Nicola Giovanelli, Filippo Vaccari, Mirco Floreani, Enrico Rejc, Jasmine Copetti, Marco Garra, Lea Biasutti and Stefano Lazzer

previously described elsewhere. 17 In brief, the subject, sitting on a seat that is fixed to a carriage that is free to move on a rail, accelerates himself and the carriage seat backward by pushing on 2 force platforms (PA 300; Laumas, Parma, Italy). The velocity along the direction of motion is

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Rich D. Johnston

force and power was conducted 5 days prior to the first game of the season following a period of 72 hours of no training. Players performed countermovement jumps on a force platform (400 Series Force Plate; Fitness Technology, Adelaide, Australia) connected to a laptop running proprietary software

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

using a vertical CMJ (reported in centimeters) with flight time measured by the Optojump (Microgate, Bolzano, Italy) to calculate jump height, which has been previously validated against a force platform. 20 Players were instructed to maintain their hands on their hips during CMJ. The depth of the CMJ

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Jorge Carlos-Vivas, Elena Marín-Cascales, Tomás T. Freitas, Jorge Perez-Gomez and Pedro E. Alcaraz

, which presented high reliability and concurrent validity when compared with force platform measurements (coefficient of variation of 2.93% [2.00%] and 1.87% [1.36%], and SEM of 3.57% [2.33%] for horizontal force and power, respectively). 27 This computation method is based on a macroscopic inverse