Results 141 to 150 of about 148,330 (168)
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In reply to “On the phase definitions of countermovement jumps”
Scandinavian Journal of Medicine & Science in Sports, 2023Ben Hoffman, Brent Raiteri
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Reliability and Factorial Validity of Squat and Countermovement Jump Tests
The Journal of Strength and Conditioning Research, 2004The primary aim of this study was to determine reliability and factorial validity of squat (SJ) and countermovement jump (CMJ) tests. The secondary aim was to compare 3 popular methods for the estimation of vertical jumping height. Physical education students (n = 93) performed 7 explosive power tests: 5 different vertical jumps (Sargent jump, Abalakow'
Marković, Goran +3 more
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A comparison of one-legged and two-legged countermovement jumps
Medicine & Science in Sports & Exercise, 1985Ten well-trained male volleyball players performed one-legged and two-legged vertical countermovement jumps. Ground reaction forces, cinematographic data, and electromyographic data were recorded. Jumping height in one-legged jumps was 58.5% of that reached in two-legged jumps.
van Soest, A J +4 more
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Jump Performance Enhancement Induced by Countermovement
2015The execution of a countermovement prior to the main movement, during which the agonist muscles experience a stretch–shortening cycle (shortening after being lengthened) enhances the exercise performance outcome (countermovement effect). During the stretch–shortening cycle, the fascicles and tendons exhibit a unique behavior; much of the length changes
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Vertical jump performance is affected by the velocity and depth of the countermovement
Sports Biomechanics, 2019This study aimed to explore the effect of the velocity and depth of the countermovement on vertical jump performance and the shape of the force-time curve. Seventeen university students performed two blocks of 18 countermovement jumps (CMJ) being instructed to jump for maximum height after performing the countermovement at a self-selected (SS-CMJ) or ...
Alejandro Pérez-Castilla +3 more
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Training Specificity of Hurdle vs. Countermovement Jump Training
Journal of Strength and Conditioning Research, 2011The 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
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Reliability and Validity of the Portable KForce Plates for Measuring Countermovement Jump (CMJ)
Applied Sciences (Switzerland), 2023Eleftherios Paraskevopoulos +2 more
exaly
Post-Isometric Back Squat Performance Enhancement of Squat and Countermovement Jump
International Journal of Environmental Research and Public Health, 2022Adam Zajac +2 more
exaly