Results 261 to 270 of about 1,069,531 (303)
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Segmental contribution to forces in vertical jump
European Journal of Applied Physiology and Occupational Physiology, 1978Performance of a vertical jump was analyzed with respect to the contribution of the different body segments to the forces acting on the whole body center of gravity. Both cinematograph and force-platform techniques were employed. The data disclosed that the take-off velocity in vertical jumps was caused by the different components as follows: knee ...
P, Luhtanen, R V, Komi
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Vertical jump coordination: fatigue effects
Medicine & Science in Sports & Exercise, 2002The aim of this study was to investigate the segmental coordination of vertical jumps under fatigue of the knee extensor and flexor muscles.Eleven healthy and active subjects performed maximal vertical jumps with and without fatigue, which was imposed by requesting the subjects to extend/flex their knees continuously in a weight machine, until they ...
Rodacki, André L. F. +2 more
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The Nature of the Vertical Jump Test and the Standing Broad Jump
Research Quarterly. American Association for Health, Physical Education and Recreation, 1966Abstract The jump-reach test and standing broad jump were investigated as tests of muscle power. The criterion used was the power lever. An analysis of the variance components of the two jump tests revealed that each test involved a large proportion of specific variance. Of the common factor variance muscle power appeared to be only one component.
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American Journal of Physics, 1970
The physics of vertical jumping is described as an interesting and “relevant” illustration for motivating students in a general physics course to master the kinematics and dynamics of one dimensional motion. The equation for the height of the jump is derived (1) from the kinematic equations and Newton's laws of motion and (2) from the conservation of ...
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The physics of vertical jumping is described as an interesting and “relevant” illustration for motivating students in a general physics course to master the kinematics and dynamics of one dimensional motion. The equation for the height of the jump is derived (1) from the kinematic equations and Newton's laws of motion and (2) from the conservation of ...
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Usefulness of the Jump-and-Reach Test in Assessment of Vertical Jump Performance
Perceptual and Motor Skills, 2010The objective was to estimate the reliability and criterion-related validity of the Jump-and-Reach Test for the assessment of squat, countermovement, and drop jump performance of 32 male Brazilian professional volleyball players. Performance of squat, countermovement, and drop jumps with different dropping heights was assessed on the Jump-and-Reach ...
Hans-Joachim, Menzel +5 more
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A biomechanical comparison of the vertical jump, power clean, and jump squat
Journal of Sports Sciences, 2014The purpose of this study was to compare the kinetics, kinematics, and muscle activation patterns of the countermovement jump, the power clean, and the jump squat with the expectation of gaining a better understanding of the mechanism of transfer from the power clean to the vertical jump.
Sasho James, MacKenzie +2 more
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The Maximal and Submaximal Vertical Jump: Implications for Strength and Conditioning
The Journal of Strength and Conditioning Research, 2004The vertical jump is a widely used activity to develop explosive strength, particularly in plyometric and maximal power training programs. It is a multijoint action that requires substantial muscular effort from primarily the ankle, knee, and hip joints.
Adrian, Lees +2 more
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Humanoid Vertical Jump with Compliant Contact
2006The objective of the authors is to achieve a vertical jump in experimentation using the humanoid robot HRP-2. After satisfactory results considering rigid foot ground contact on a Matlab simulator, this paper studies the vertical jump considering a compliant contact and discusses the differences between both models, using Matlab and compared with ...
Víctor Núñez, Nelly Nadjar-Gauthier
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Effect of a Single Jump Practice on Vertical Jump Performance
Journal of Athletic Enhancement, 2015Effect of a Single Jump Practice on Vertical Jump Performance Objective: This study aimed to elucidate the effect of a single jump practice session on vertical jump height. Thirty-two physical educational students aged from 19 to 27 years participated in this study.
Yoshimoto T, Takai Y, Ishii Y
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THE COORDINATION OF SEGMENTS IN THE VERTICAL JUMP
Medicine & Science in Sports & Exercise, 1983ABSTRACTHUDSON, J. L. Coordination of segments in the vertical jump. Med. Sci. Sports Exerc., Vol. 18, No. 2, pp. 242–251, 1986. Three general patterns of segmental coordination (i.e., sequential [SEQ], simultaneous [SIM], and modified simultaneous [MSIM]) have been hypothesized for jumping.
J. L. Hudson, H. G. Owen
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