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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 75 for “"Jump Height"”.
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The Relationship between Isometric Force Characteristics and Vertical Jump Height under Various Loading Conditions.
… force characteristics (IF) and vertical jump height under various loading conditions. Sixty-three collegiate athletes participated in this investigation. Athletes performed static jump (SJ) and countermovement jumps (CMJ) with 0 and 20kg, and isometric mid-thigh pulls on a force plate. …
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Effect of Vibration Foam Rolling and Non-Vibration Foam Rolling in the Lower Extremities on Jump Height
… the lower extremities during a countermovement jump (CMJ), than a group who uses foam rolling without vibration compared to no warm-up. Eighteen female and male participants, EWU athletes volunteered for this study but three were unable to complete all testing. The design was a randomized …
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Monitoring Drop Jump Height and Psychological Measures throughout Competitive in-Conference Division 1 Collegiate Basketball Season "An Exploratory Study"
… during conference play and consisted of two drop jump trials and completion of the Recovery-Cue seven (RC7). Subjects also completed the Recovery-Stress questionnaire (REST-Q) on weeks 1 and 5. Results: A significant increase (P <.05) was observed in team mean RC7 scores from week 4 to week 5. No …
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The effect of playing and training surface on vertical jump height in elite junior male volleyball players : a pilot study
… training techniques (especially plyometric) on jump height. However, previous research has not considered the optimum surface for these training techniques. The aim of this research was to determine which training and/or playing surface is most beneficial in maximising vertical jump height for …
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The Feasibility of Accelerometer-Derived Measures of Vertical Jump Height as a Marker of Neuromuscular Performance in Collegiate Soccer Players
… Soccer team participated in the countermovement jump assessment to find a reliable way to gauge player fatigue and readiness in these athletes. These were tested by assessing the within and between-day similarity of a countermovement jump test as a measure of neuromuscular performance by …
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7-WEEKS OF YOGA TRAINING AND ITS EFFECTS ON FLEXIBILITY, RATE OF FORCE DEVELOPMENT, AND JUMP HEIGHT IN OLYMPIC WEIGHTLIFTERS
… flexibility, rate of force development, and jump height. Pre- and post-testing was performed consisting of flexibility and jump performance measurements. The participants performed a sit and reach test followed by a loaded overhead squat test with barbell. The overhead squat test was …
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Can a pre-training biomechanical pathway identify the most effective exercise to enhance a given group’s, subgroup’s or individual’s countermovement jump height?
Background: Countermovement jump (CMJ) ability is an important contributor to successful performance in many sports. While the drop jump, squat, jump squat and power clean training exercises are each purported to enhance maximal CMJ jump height, there are generally inconsistent findings regarding …
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The Acute Effects Of Alpha-Gpc On Hand Grip Strength, Jump Height, Power Output, Mood, And Reaction-Time In Recreationally Trained, College-Aged Individuals
… on performance testing (hand-grip strength, jump height, force kinetics, rate of force development) & reaction time of a college-aged recreationally trained athlete. </p> <p>Methods: This study utilized a random, double-blinded, cross over design in which 27 participants (m=15; f=12) ingested …
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Beyond jump height: Understanding the kinematics and kinetics of the countermovement jump from vertical ground reaction force data through the use of higher-order time derivatives
The countermovement jump (CMJ) is a complex, multi-joint movement that has been well studied in human research, largely through analysis of the ground reaction force-time signal obtained during jumping. Such analysis has required the definition and then the calculation of several critical kinematic …
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Jumping to Conclusions: The Effects of Hydration Status on Kinetics and Electromyography in the Vertical Jump
… mean force during the CMJ with no difference in jump height. Significant differences were present between conditions for jump height and jump velocity for the SJ. No differences were seen in any of the four muscles of interest in regard to muscle activation. Significant differences were present …
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The effect of variable resistance training for the post activation performance enhancement of the countermovement jump
… and VRT by steel chains on counter movement jump (CMJ) performance, specifically for jump height and positive net impulse. Twelve resistance-trained individuals volunteered to participate in three experimental trials. Completion of trials was randomised between the traditional, no-chain, and …
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Net Impulse and Net Impulse Characteristics in Vertical Jumping
… 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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Essays on the Econometrics of Financial Data
… in the context of diffusion processes with jumps. There are many applications. For example, in finance, this methodology can be used to study asset pricing. My dissertation consists of two chapters which are closely related. They reveal the relationship between the power of a test, jump …
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Dynamic exoskeleton : mechanical design of a human exoskeleton to enhance maximum dynamic performance
… a human, thus allowing the user to run faster, jump higher, or traverse challenging terrain. This paper presents the mechanical design of an alpha prototype with a focus on increasing the maximum vertical jump height of a human. High torque motors were constrained to the body with two degrees of …
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Muscle Dynamics as the Result of Whole Body Vibration and Plyometrics
… were assigned to either the control group (C), jumping only group (J), or jumping with vibration group (JV). METHODS AND PROCEDURES: Measurements included: jump height (Myotest or Vertec), velocity, force, blood lactates, gastrocnemius and quadriceps strength, and exertion (RPE). Subjects were …
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The acute effect vibrating foam rollers have on the lower extremities' ability to produce power
… Subjects then participated in the vertical jump test, using a Just Jump Mat. Each participant was given one practice attempt, and three recorded attempts that were averaged, and used for statistical analysis. Testing days were separated by a minimum of 48 hours and were completed at the same …
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Dynamic exoskeleton : design and analysis of a human exoskeleton to enhance maximum dynamic performance
… is intended to enable to the user to run faster, jump higher, or traverse challenging terrain. This thesis presents a study on improving human vertical jump height using a powered exoskeleton. A simple human jump model is created, and dynamic simulation is utilized to determine the effectiveness …
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The Validity of The VmaxPro during Countermovement Jump and Back Squat Performance
… variables in the back squat and countermovement jump (CMJ) against a gold standard force plate. Squat variables assessed included mean concentric velocity (MCV), mean concentric power (MCP), depth, and duration while CMJ variables assessed included MCV, MCP, depth, duration, and jump height. …
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The countermovement rebound jump assessment: validity, reliability, associations with athletic performance and sensitivity to change
Jumping is a common action in competitive sports, requiring precise coordination of the lower limbs. Among the various jump types, the countermovement jump (CMJ) and drop jump (DJ) are widely used to assess athletic performance. However, evaluating both slow and fast stretch-shortening cycle (SSC) …
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