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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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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

CT protocol used also resulted in improvement of vertical jumping corroborating previous findings in youth. 27 It appears that even a moderate rise in maximal strength is associated with a substantial increase in lower-limb muscle power 29 and participants in this study improved both. Maturation

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Douglas J. Casa, Samuel N. Cheuvront, Stuart D. Galloway and Susan M. Shirreffs

separated by 40 min or undertook vertical jumps and a 400-m sprint. Each of these sessions was undertaken twice. The body mass reductions averaged 0.8 and 1.3 kg in the 50/200-m sessions over a 2-hr period, and averaged 0.5 and 1.1 kg over 45 min in the 400 m and vertical jump session. These reductions are

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John J. McMahon, Paul A. Jones, Timothy J. Suchomel, Jason Lake and Paul Comfort

usefulness as a vertical-jump performance metric. Although RSImod was shown to be related to force and power characteristics of the unloaded CMJ, such as rate of force development ( r  = .56–.66), peak force ( r  = .37–.50), and peak power ( r  = .47–.69), 4 that study only included “gross” measures of CMJ

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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

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Jennifer Sygo, Alicia Kendig Glass, Sophie C. Killer and Trent Stellingwerff

focus on strategies that might have an application within jumps and be of interest for future research. Hypohydration Acute hypohydration can impact muscle strength, power, and endurance to varying degrees, as well as vertical jump ability ( Savoie et al., 2015 ). According to a recent meta

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Hugh H.K. Fullagar, Robert McCunn and Andrew Murray

improvement in various physical parameters in more recent players compared to those in previous decades (eg, RBs in 2000 had higher scores in bench press, power, and vertical jump by 11%, 9%, and 7.7%, respectively, than those in 1987 43 ). Furthermore, programs display improved strength and power performance

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Daria Neyroud, Jimmy Samararatne, Bengt Kayser and Nicolas Place

. Planning such types of training during the weeks before the competitive season’s start might also permit to get the most out of it as it has been shown that vertical jump height peaks a few weeks after NMES training in athletes. 9 , 33 Also of importance is the ∼16% lower jump height we found with NMES

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

loads at an alpha of .05. 1RM indicates 1-repetition maximum. Table 3 Raw Mean Power Normalized to Body Weight and Joint Power Contributions Normalized to Total Lower-Body Power Values at the Hip, Knee, and Ankle Joints Over the Purposive Phase of the Countermovement Vertical Jump Relative mean power, W

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Thomas Dos’Santos, Paul A. Jones, Jonathan Kelly, John J. McMahon, Paul Comfort and Christopher Thomas

, Haff GG , et al . Relationship between strength characteristics and unweighted and weighted vertical jump height . Int J Sports Physiol Perform . 2009 ; 4 ( 4 ): 461 – 473 . PubMed ID: 20029097 10.1123/ijspp.4.4.461 20029097 13. Stone MH , Sanborn K , O’Bryant HS , et al . Maximum