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Tennis is defined by quick starts and stops, frequent and rapid overhead strokes, and the engagement of multiple muscle groups during each stroke. The intensity of a match can change randomly, going f...
Micro-nano-engineered nitrogenous bone biochar developed with a ball-milling technique for high-efficiency removal of aquatic Cd(II), Cu(II) and Pb(II)
Micro-nano-engineered nitrogenous bone biochar
2023/6/5
A cost-effective and eco-friendly engineering method to improve biochar’s physicochemical and sorption performance is critical in various environmental applications. In this study, micro-nano-engineer...
Accuracy and Reliability of a New Tennis Ball Machine
Technology tennis testing training ball-machine
2016/7/7
The aim was to evaluate the reliability of a newly-developed ball machine named 'Hightof', on the field and to assess its accuracy. The experiment was conducted in the collaboration of the 'Hawk-Eye' ...
Comparison of Ball-And-Racket Impact Force in Two-Handed Backhand Stroke Stances for Different-Skill-Level Tennis Players
Biomechanics upper extremity kinetic acceleration open stance square stance
2016/7/7
This study compared the kinetic roles of the upper extremities in racket impact force generation between the open stance (OS) and square stance (SS) for tennis players with different skill levels in t...
Time-Memory Trade-Off for Lattice Enumeration in a Ball
Lattice Enumeration public-key cryptography
2016/3/1
Enumeration algorithms in lattices are a well-known technique for solving the Short Vector Problem (SVP) and improving blockwise lattice reduction algorithms. Here, we propose a new algorithm for enum...
The first detection of leafhopper Scaphoideus titanus Ball (Hemiptera, Cicadellidae) in Slovakia
American grapevine leafhopper occurrence phenology Flavescence doree
2015/7/28
Scaphoideus titanus Ball, the main vector of Flavescence dorée phytoplasma, was monitored in Slovakia during 2013 and 2014. The species was present in the vineyards of eastern Slovakia but it was rare...
Computational Sports Aerodynamics of a Moving Sphere:Simulating a Ping Pong Ball in Free Flight
Computational Sports Aerodynamics Moving Sphere Simulating Ping Pong Ball Free Flight
2015/7/3
Fluid dynamics associated with many sports involving spheric shaped equipments such as tennis, golf and ping pong balls tends to be very unsteady and viscous, with occasionally transitional behaviors....
Ball Machine Usage in Tennis: Movement Initiation and Swing Timing While Returning Balls from a Ball Machine and from a Real Server
Tennis ball machine server return stroke movement initiation
2015/5/22
Practicing with the use of a ball machine could handicap a player compared to playing against an actual opponent. Recent studies have shown some differences in swing timing and movement coordination, ...
Effects of Stabilization Exercise Using a Ball on Mutifidus Cross-Sectional Area in Patients with Chronic Low Back Pain
Stabilization exercise ball multifidus cross-sectional area low back pain
2015/5/18
The purpose of this study was to compare the effects of lumbar stabilization exercises using balls to the effects of general lumbar stabilization exercises with respect to changes in the cross section...
Effects of a 12 Week SAQ Training Programme on Agility with and without the Ball among Young Soccer Players
speed specific agility change of direction SAQ
2015/5/14
The purpose of this study was to determine the effects of a 12 week conditioning programme involving speed, agility and quickness (SAQ) training and its effect on agility performance in young soccer p...
Influence Of Opposition On Ball Velocity In The Handball Jump Throw
Team handball jump throw ball velocity defence
2015/5/7
The purpose of the present study was to investigate the influence of different degrees of opposition on ball velocity in the jump throw in elite, amateur and adolescent team handball players. Thus, on...
Development of body composition, hormone profile, physical fitness, general perceptual motor skills, soccer skills and on-the-ball performance in soccerspecific laboratory test among adolescent soccer players
Football youth perception growth puberty
2015/5/6
The aim of the present study was to examine the development of
on-the-ball skills in soccer-specific laboratory test and to examine how traditional measures of body composition, hormone
profile, p...
The Influence of Ball Velocity and Court Illumination on Reaction Time for Tennis Volley
premotor reaction time motor reaction time electromyogram tennis
2015/5/4
The he purpose of this study is to examine the effects of ball velocity, court illumination, and volley type on the reaction time (RT) of a tennis athlete for a volley stroke. Eights cases with two di...
Four Ball Best Ball 1
Strategies for four ball best ball golf selecting pairs of four ball best ball players
2015/5/4
In this paper a four-ball-best-ball (4BBB) model for pairs of golf players is set up. The 4BBB match-play scoring system is seen to satisfy a basic requirement of fairness. It is shown that it is not ...
Differences in Ball Sports Athletes Speed Discrimination Skills Before and After Exercise Induced Fatigue
Decision-making perception exhaustion
2015/4/22
Substantial research exists in relation to the effect of fatigue on the cognitive skills of athletes. Very few studies in the sport domain, however, have investigated decision-making time and accuracy...