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Harry G. Banyard, Kazunori Nosaka, Alex D. Vernon and G. Gregory Haff

-weight squat exercise. Three methods are often employed to quantify concentric movement velocity: peak velocity (PV), mean propulsive velocity (MPV), and mean velocity (MV). 2 , 6 , 10 MPV has recently been popularized and has been utilized in the aforementioned load–velocity profiling studies for the pull

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John de Grosbois and Luc Tremblay

peak velocity (TAPV; e.g., Elliott, Carson, Goodman, & Chua, 1991 ), jerk score (e.g., Tresilian, Stelmach, & Adler, 1997 ), and frequency-domain analyses (e.g., de Grosbois & Tremblay, 2016 ). Recently, de Grosbois and Tremblay ( 2016 ) examined the relative sensitivity of common measures of online

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Garrett M. Hester, Zachary K. Pope, Mitchel A. Magrini, Ryan J. Colquhoun, Alejandra Barrera-Curiel, Carlos A. Estrada, Alex A. Olmos and Jason M. DeFreitas

peak velocity (PV) and acceleration (sometimes termed rate of velocity development) of the knee extensors are negatively affected by age ( Thompson, Conchola, Palmer, & Stock, 2014 ; Wallace, Power, Rice, & Dalton, 2016 ). Similar to the effect of age on other rapid, time-sensitive measures (e

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James W. Roberts

based on endpoint variability is robust ( Elliott et al., 2004 ; Worringham, 1991 ), it remains to be seen whether the same assumption of a normal trend in the response distribution unfolds at earlier kinematic landmarks (peak acceleration [PA], peak velocity [PV], and peak deceleration [PD]). Indeed

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Joel M. Garrett, Stuart R. Graham, Roger G. Eston, Darren J. Burgess, Lachlan J. Garrett, John Jakeman and Kevin Norton

most sensitive approach to monitoring changes in NMF status. 1 , 9 , 10 Specifically, the variables, shown to be most useful in indicating neuromuscular status, are changes within eccentric displacement, jump height, peak velocity, mean power, and/or peak force. 1 , 9 , 11 , 12 For a variable to be

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Irineu Loturco, Timothy Suchomel, Chris Bishop, Ronaldo Kobal, Lucas A. Pereira and Michael R. McGuigan

; ie, relative power = W·kg −1 ). In addition, the bar velocities (mean velocity [MV], mean propulsive velocity [MPV], and peak velocity [PV]) associated with their respective maximum power values were retained for data analysis. Statistical Analysis Normality was confirmed via the Shapiro–Wilk test

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Hermann Zbinden-Foncea, Isabel Rada, Jesus Gomez, Marco Kokaly, Trent Stellingwerff, Louise Deldicque and Luis Peñailillo

concentric phase (portion before takeoff in which the displacement is positive) were assessed for each jump. The following variables were obtained: peak force during the eccentric phase, peak power (PP), peak force during the concentric phase, peak velocity (PV), and peak displacement (PD). Moreover, the

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Dustin J. Oranchuk, Eric J. Drinkwater, Riki S. Lindsay, Eric R. Helms, Eric T. Harbour and Adam G. Storey

randomized order, a 1RM testing session with a CG, and with an HG. Peak velocity, power, vertical force, and vertical barbell displacement, as well as subjective reports, were compared between the two 1RM conditions. Subjects A minimum sample size of 8 subjects was calculated using G*Power (Düsseldorf

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Justin J. Merrigan, James J. Tufano, Jonathan M. Oliver, Jason B. White, Jennifer B. Fields and Margaret T. Jones

( P  = .301; η p 2 = .099 ). Significant main effects and interactions are displayed in the text, whereas specific P values and effect sizes are presented in each respective figure and table. Mean and peak velocity and power of repetitions, collapsed across sets, are presented in Figure  2 . Mean

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Harry G. Banyard, James J. Tufano, Jose Delgado, Steve W. Thompson and Kazunori Nosaka

during the concentric phase of the squat unless noted otherwise using methodology similar to previous research. 18 – 20 This included MV and peak velocity (PV) measures that were captured from 4 linear position transducers (PT5A-250; Celesco Transducer Products, Inc, Chatsworth, CA) mounted to the top