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Zachary M. Gillen, Lacey E. Jahn, Marni E. Shoemaker, Brianna D. McKay, Alegra I. Mendez, Nicholas A. Bohannon and Joel T. Cramer

Vertical jump tests are among the most popular assessments of lower-body power for athletes. 1 – 6 Arguably, the most popular and common vertical jump test is the countermovement jump (CMJ). The CMJ involves a downward, eccentric movement followed by a rapid, maximal, upward, concentric vertical

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Jason Lake, Peter Mundy, Paul Comfort, John J. McMahon, Timothy J. Suchomel and Patrick Carden

Force plates are often used to measure countermovement vertical jump (CMJ) ability. This provides practitioners with information about the athletes’ capacity to accelerate their body mass using variables such as impulse, mean force, phase duration, 1 – 4 and the reactive strength index modified (i

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Antonio Dello Iacono, Marco Beato and Israel Halperin

Wingate. Design A randomized cross-over design was used to compare the effects of 2 PAP protocols employing the same conditioning activity (jump squats with OPL) but with different sets configurations (traditional and cluster) on subsequent vertical jump performance assessed by the CMJ test. Subjects

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Hayley M. Ericksen, Caitlin Lefevre, Brittney A. Luc-Harkey, Abbey C. Thomas, Phillip A. Gribble and Brian Pietrosimone

concerned about the negative impact that reducing vGRF during landing may have on athletic performance (ie, vertical jump). Maximum vertical jump height (Vert max ) is commonly used to evaluate performance because of its ease of use as well as its ability to assess lower-extremity power. 19 Additionally

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Brad W. Willis, Katie Hocker, Swithin Razu, Aaron D. Gray, Marjorie Skubic, Seth L. Sherman, Samantha Kurkowski and Trent M. Guess

correlations to ACL injury risk. 3 – 5 Specifically, an excessive knee abduction angle (KAA), a measure of tibia displacement relative to the femur acquired by 3-dimensional motion capture systems, has been linked to elevated risk of injury to the ACL. 3 A bilateral jump-landing task, the drop vertical jump

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Guillermo Mendez-Rebolledo, Rodrigo Ramirez-Campillo, Eduardo Guzman-Muñoz, Valeska Gatica-Rojas, Alexis Dabanch-Santis and Francisco Diaz-Valenzuela

Vertical jumping is a motor ability commonly used in daily activities (eg, obtaining objects out of reach, avoiding obstacles). In sports, such as track and field, gymnastics, volleyball, basketball, and soccer, vertical jumping is also an excellent marker of lower limb muscle power. 1 – 3 Aside

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Jeffrey C. Cowley, Steven T. McCaw, Kelly R. Laurson and Michael R. Torry

to explain the motor patterns and characteristics underlying movement difficulties faced by children who are overweight ( 8 , 38 ). The vertical jump is a common measure of gross motor skill ( 22 ) with a documented performance deficiency among children who are overweight ( 26 ). Beyond the obvious

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Gabriel Andrade Paz, Marianna de Freitas Maia, Haroldo Gualter Santana, Humberto Miranda, Vicente Lima and John D. Willson

Volleyball is the widely played sport in the world and requires several physiological attributes, such as aerobic profile, strength, vertical jump ability, agility, and speed, 1 which are frequently developed in strength and conditioning programs. 2 , 3 However, previous studies have shown a

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Anthony Birat, David Sebillaud, Pierre Bourdier, Eric Doré, Pascale Duché, Anthony J. Blazevich, Dimitrios Patikas and Sébastien Ratel

a maximal vertical jump was performed without countermovement. Jumps were repeated if the researcher could clearly, visually detect a countermovement prior to the upward (jump) phase. Countermovement Jump (CMJ) From a standing position, the subjects were instructed to dip and immediately jump with

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Luis F. Áragón-Vargas and M. Melissa Gross

The purpose of this study was to examine the changes in both the coordination patterns of segmental actions and the dynamics of vertical jumping that accompany changes in vertical jump performance (VJP) occurring from trial to trial in single subjects. Ground reaction forces and video data were analyzed for 50 maximal vertical jumps for 8 subjects. It was possible to predict VJP from whole-body or even segmental kinematics and kinetics in spite of the small jump performance variability. Best whole-body models included peak and average mechanical power, propulsion time, and peak negative impulse. Best segmental models included coordination variables and a few joint torques and powers. Contrary to expectations, VJP was lower for trials with a proximal-to-distal sequence of joint reversals.