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Showing 1 to 17 of 17 for “"Vertical jumping"”.
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Net Impulse and Net Impulse Characteristics in Vertical Jumping
… use of net impulse and its characteristics in vertical jumping to monitor athletes' performance status and responses/adaptations to interventions. Five variables were proposed as net impulse characteristics: net impulse height and width, rate of force development, shape factor, and net impulse …
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Anaerobic fatigue and its effect on kinematic and kinetic variables associated with impact during vertical jumping
… with impacts during non-fatigued and fatigued vertical jumping were examined. The purpose of this study was to investigate fatigue and its effect on anterior/posterior shear forces, compression forces, and flexion/extension moments at the ankle, knee, and hip during an impact from vertical …
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Effects of deep-water running and land-based running program on aerobic power, physical fitness and motivation on female youth footballers
… the study. The measured variables were: VO2max, vertical jumping height, kicking velocity, agility, sprint speed, intrinsic motivation, extrinsic motivation, and amotivation. The intervention took seven weeks, with two-to-three endurance session per week, per group at the start of the pre-season …
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Exploring lift-off dynamics in a jumping robot
We study vertical jumping in a simple robot comprising an actuated mass spring arrangement. The actuator frequency and phase are systematically varied to find optimal performance. Optimal jumps occur above and below (but not at) the robot's resonant frequency f0. Two distinct jumping modes emerge: …
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The effect of trunk stability and leg strength training on vertical take-off velocity in athletes
… trunk stability training on the performance of vertical jumping as assessed by vertical take-off velocity. Athletes (20 males, 35 females) were randomly assigned to one of four training groups: trunk stability (TS), leg strength (LS), trunk stability and leg strength (TL), and control (CO). …
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Physiological and Performance Effects of 11 Weeks of Training in Division 1 Collegiate Throwers: An Exploratory Study.
… of maximal strength (isometric mid-thigh pull), vertical jumping ability, dynamic mid-thigh pulls (across a spectrum of loads), hormones (testosterone and cortisol), and adipokines (adiponectin, leptin, and resistin) were taken at weeks 1, 7, and 11. The throwers demonstrated several …
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The Interrelationships of Fitness Characteristics in Division 1 Athletes
… to almost all sports include strength, power, vertical jump height, shortdistance sprinting ability, muscularity, and body fat percentage. These variables have been shown in previous research to independently affect athletic performance outcomes, but their relationships to one another are less …
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The effect of vertically- and horizontally-directed plyometric exercise on sprint running performance
… was to determine the effect of 6 weeks of vertically- and horizontally-directed lower-body plyometric exercise with vertically versus horizontally biased ground force application, on 40-m sprint running time, vertical jumping height, body composition and gastrocnemius medialis (GM) muscle …
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Stretch-Shortening Cycle in Human Muscle Contraction: The Role of the Stretch Reflex in Force Production in Various Vertical Jumps
… the stretch reflex contribution during vertical jumping performance and to determine the ratio of the stretch reflex contribution relative to elasticity in the stretch-shortening contraction of the vastus lateralis muscle during the following vertical jumps: counter-movement jump (CMJ), …
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The Effects of Whole Body Vibration on Muscle Recovery and Performance
… (pre, post1, post2) in the following order: vertical jump, maximal voluntary isometric strength, interpolated-twitch, muscle activity, pressure pain threshold (PPT), range of motion (ROM), thigh circumference, and pain on movement. On visit 4, pre assessments were taken folloby 4, 40% front …
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The Relationship between Lower Body Power and Sprinting Ability in Recreationally Trained College Men
… This study examine the relationship between jumping ability and sprinting ability among 22 recreationally trained males who participate on a regionally competitive, club level Ultimate team. The subjects' mean (± SD) age, height, weight, body fat percentage and fat free mass were 21.1±2.26 …
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The competitive, physiological and trainable aspects of vertical jump performance : a series of studies on the strength and conditioning of elite volleyball players
… The effect of accentuated eccentric load on vertical jump kinetics kinematics in elite male athletes. International Journal of Sports Science and Coaching. 2:267-273, 2007. Sheppard, J. M., S. Cormack, K. L. Taylor, M. R. McGuigan, and R. U. Newton. Assessing the force-velocity …
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Physical and neurophysiological factors influencing dynamic balance
… sport related activities such as hopping and jumping. Many studies have represented the CoP data without mentioning its accuracy so several experiments were done to establish the agreement between the CoP and the projected CoM in a static condition. It was found that there was an inaccuracy …
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Proprioception, jumping capacity and agility in beach versus indoor volleyball players
… that proprioception can be trained. Maximal vertical jumping, lateral cutting sprints and diving to play the ball are repetitively demanded of volleyball players. BVB players complete these actions on sand (an uneven and unstable surface), making this sport, by definition, a continuous …
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The Physiological and Genetic Factors Underpinning Powerful Actions in Elite Youth Soccer
… mediolateral directions), eight sprints, and six vertical jumps (three bilateral and three unilateral)], horizontal accelerations of short duration (< 1.5 s) from different starting speeds were the most dominant type of explosive action. This activity profile provides a strong rationale for …
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Factors related to creating force-velocity and load-velocity profiles with the squat jump
… of force is an important factor underpinning vertical jump performance. Recently, it has become popular to use forcevelocity (FV) and load-velocity (LV) profiles created from progressively loaded squat jumps (SJs) to guide the resistance training process. By creating FV profiles, the coach can …