Results 181 to 190 of about 23,105 (226)

Dimensionality Reduction for Countermovement Jump Metrics

International Journal of Sports Physiology and Performance, 2021
Purpose:Dozens of variables can be derived from the countermovement jump (CMJ). However, this does not guarantee an increase in useful information because many of the variables are highly correlated. Furthermore, practitioners should seek to find the simplest solution to performance testing and reporting challenges.
Lachlan P, James, Haresh, Suppiah, Michael R, McGuigan, David L, Carey   +3 more
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The Countermovement Rebound Jump: Between-Session Reliability and a Comparison With the Countermovement and Drop Jump Tests

Journal of Strength & Conditioning Research, 2023
Abstract Xu, J, Turner, A, Comyns, TM, Chavda, S, and Bishop, C. The countermovement rebound jump: Between-session reliability and a comparison with the countermovement and drop jump tests. J Strength Cond Res 38(4): e150–e159, 2024—The countermovement jump (CMJ) and drop jump (DJ) are widely used jump tests to evaluate an athlete's ...
Jiaqing Xu, Anthony Turner, Thomas M. Comyns, Shyam Chavda, Chris Bishop   +4 more
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Which drop jump technique is most effective at enhancing countermovement jump ability, “countermovement” drop jump or “bounce” drop jump?

Journal of Sports Sciences, 2013
The drop jump is a popular form of plyometric exercise often undertaken to enhance countermovement jump ability (jump height). Despite its popularity the effects of drop jump training on countermovement jump height are often inconsistent. Such inconsistencies may be as a result of differences in the drop jump technique being employed.
Brendan Michael, Marshall, Kieran Andrew, Moran   +1 more
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Biomechanical analysis of drop and countermovement jumps

European Journal of Applied Physiology and Occupational Physiology, 1986
For 13 subjects the performance of drop jumps from a height of 40 cm (DJ) and of countermovement jumps (CMJ) was analysed and compared. From force plate and cine data biomechanical variables including forces, moments, power output and amount of work done were calculated for hip, knee and ankle joints.
Bobbert, M. F., Mackay, M.T., Schinkelshoek, D., Huijing, P. A., van Ingen Schenau, G. J.   +4 more
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Phase-Specific Verbal Cue Effects on Countermovement Jump Performance

Journal of Strength & Conditioning Research, 2021
Abstract Krzyszkowski, J, Chowning, LD, and Harry, JR. Phase-Specific Verbal Cue Effects on Countermovement Jump Performance. J Strength Cond Res 36(12): 3352–3358, 2022—The aim of this study was to determine whether countermovement vertical jump (CMVJ) phase–specific cues can improve jump performance and phase-specific force-time ...
John Krzyszkowski, Luke D. Chowning, John R. Harry   +2 more
openaire   +2 more sources

Training Specificity of Hurdle vs. Countermovement Jump Training

Journal of Strength and Conditioning Research, 2011
The objective of this study was to compare bilateral and unilateral hurdle jumps with traditional countermovement jumps (CMJs). Thirteen athletes were tested during continuous forward bilateral and unilateral hurdle jumps and single CMJ. Countermovement jump height was used to establish the hurdle height. Subjects jumped forward over 4 hurdles with the
Dario F, Cappa, David G, Behm
openaire   +2 more sources

Countermovement Jump Height

Journal of Strength and Conditioning Research, 2014
The goal of this study was to assess (a) the eccentric rate of force development, the concentric force, and selected time variables on vertical performance during countermovement jump, (b) the existence of gender differences in these variables, and (c) the sport-specific differences.
Guillaume, Laffaye, Phillip P, Wagner, Tom I L, Tombleson   +2 more
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The Countermovement Jump Mechanics of Mixed Martial Arts Competitors

Journal of Strength and Conditioning Research, 2020
Abstract James, LP, Connick, M, Haff, GG, Kelly, VG, and Beckman, EM. The countermovement jump mechanics of mixed martial arts competitors. J Strength Cond Res 34(4): 982–987, 2020—Gross countermovement jump (CMJ) performance measures are greater in higher-level mixed martial arts (MMA) competitors than lower-level (LL) competitors ...
James, Lachlan P., Connick, Mark, Haff, G. Gregory, Kelly, Vincent G, Beckman, Emma M.   +4 more
openaire   +3 more sources

Bilateral Facilitation and Laterality during the Countermovement Jump

Perceptual and Motor Skills, 2009
This study assessed bilateral facilitation and laterality during counter-movement jumps. 23 NCAA Division-I athletes (13 men, 10 women) who participated in track and field volunteered to serve as participants and performed bilateral, right, and left leg countermovement jumps on a force plate. Dependent variables included jump height, reactive strength
William P, Ebben, Eamonn, Flanagan, Randall L, Jensen   +2 more
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Does bilateral index differ between countermovement jump, drop jump and squat jump?

Computer Methods in Biomechanics and Biomedical Engineering, 2012
In the literature, it has already been reported that in a two-legged vertical jump humans achieve less than twice the jump height they are able to reach in a one-legged jump (van Soest et al.
E, Simoneau, A, Toumi, C, Gillet, S, Leteneur   +3 more
openaire   +2 more sources