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Kemal Idrizovic, Bahri Gjinovci, Damir Sekulic, Ognjen Uljevic, Paulo Vicente João, Miodrag Spasic and Tine Sattler

Plyometric training is a method aimed at improving conditioning capacities that require the fast development of muscular force ( 27 ). This form of training uses the stretch-shortening cycle in order to enhance the ability of the neuromuscular system to produce maximal force in the shortest

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Audrey R.C. Elias, Curt D. Hammill and Ryan L. Mizner

Though essential to athletic performance, the ability to land from a jump often remains limited following injury. While recommended, jump training is difficult to include in rehabilitation programs due to high impact forces. Body weight support (BWS) is frequently used in rehabilitation of gait following neurological and orthopedic injury, and may also allow improved rehabilitation of high-impact tasks. There is a differential effect of BWS on walking and running gaits, and the effect of BWS on movements with relatively large vertical displacement is unknown. The current study evaluates the effect of BWS on a replicable singleleg hopping task. We posited that progressive BWS would decrease limb loading while maintaining the joint kinematics of the task. Twenty-eight participants repetitively hopped on and off a box at each of four BWS levels. Peak vertical ground reaction forces decreased by 22.5% between 0% and 30% BWS (P < .001). Average hip, knee, and ankle internal moments decreased by 0.5 N·m/kg each. Slight kinematic changes across BWS levels were clinically insignificant. The high level of task specificity evidenced by consistent kinematics coupled with a similar reduction of internal moment at each joint suggests that BWS may be a useful strategy for rehabilitation of jumping tasks.

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Deepika Singla and M. Ejaz Hussain

In the past, plyometric training has proved to be effective in improving athletic performance. 1 It may serve to reduce and prevent injuries and acts as a rehabilitation tool in case of injured sports persons who desire to return to sports and achieve optimal sports performance. 2 , 3 Recent

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Athanasios Chatzinikolaou, Konstantinos Michaloglou, Alexandra Avloniti, Diamanda Leontsini, Chariklia K. Deli, Dimitris Vlachopoulos, Luis Gracia-Marco, Sotirios Arsenis, Ioannis Athanailidis, Dimitrios Draganidis, Athanasios Z. Jamurtas, Craig A. Williams and Ioannis G. Fatouros

, strength, plyometric, and sprint training) in peripubertal years is quite effective in promoting the athletic development of youth due to the increased plasticity of the neuromuscular system before, during, and after the period of peak height velocity. 6 Strength training (ST) using more traditional power

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Yiannis Michailidis, Alexandros Tabouris and Thomas Metaxas

discriminate between a successful and an unsuccessful performance. Therefore, power training is very important in soccer. Plyometric training (PT) is an effective way of improving the rate of both force development and sprint performance. 5 It involves a variety of jumps and actions that are characterized by

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

sports to meet these demands and improve physical performance is plyometric training. Plyometric exercises are characterized by explosive muscle extension and contraction and are thought to improve neural efficiency. 4 These specific exercises consist of 3 phases: (1) the (eccentric) preactivation phase

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Rodrigo Ramirez-Campillo, Cristian Alvarez, Felipe García-Pinillos, Paulo Gentil, Jason Moran, Lucas A. Pereira and Irineu Loturco

and prioritized from a young age ( 19 , 27 , 34 ), potentially leading toward optimal adulthood motor capacity ( 31 ). Plyometric jump training (PJT) seems to be a practical way to promote progressive improvements in neuromuscular abilities, as well as helping in injury prevention ( 2 , 36 ). These

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Panagiota Klentrou, Kirina Angrish, Nafisa Awadia, Nigel Kurgan, Rozalia Kouvelioti and Bareket Falk

plyometric exercise in prepubertal and pubertal children have reported significant increases in bone mineral content ( 12 , 24 ). These osteogenic benefits of exercise have been attributed in part to the mechanical loading associated with exercise. Specifically, high-impact and weight-bearing exercises apply

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Mehrez Hammami, Rodrigo Ramirez-Campillo, Nawel Gaamouri, Gaith Aloui, Roy J. Shephard and Mohamed Souhaiel Chelly

playing time and ∼3% of the total distance covered ( 33 ), and ∼28 high-intensity technical playing actions were observed per match ( 32 ). Development of muscular strength and power by plyometric training ( 2 , 3 , 30 , 44 , 47 ) is thus important to complementing technical and tactical skills when

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

change of direction (COD) speed tests. 2 The efficacy of resistance and plyometric training (PT) modes is so extensively recognized that some authors argue that further studies comparing the effect of different conditioning programs against a control group that only perform soccer training are not