Performance Of Tennis Players Research Articles

Diferencias en las estadísticas de competición de tenis en los juegos olímpicos de Río de Janeiro 2016

El objetivo de este estudio fue conocer las estadísticas de competición de tenis en los JJOO de Río de Janeiro 2016. Para ello, se analizaron 282 sets de los 128 partidos en los que participaron un total de 128 tenistas (64 jugadores y 64 jugadoras). Los datos fueron seleccionados de la información publicada en la Web Oficial de la Federación Internacional de Tenis (http://www.itftennis.com/olimpiadas/cuadros). Los resultados mostraron que el género masculino obtuvo valores estadísticamente superiores en variables relacionadas con el servicio, mientras género femenino obtuvo mejores valores en variables relacionadas con el resto. Con respecto a la lateralidad, no se encontraron diferencias significativas entre zurdos y diestros en el género masculino. En el género femenino, las jugadoras zurdas obtuvieron unos valores significativamente superiores en el porcentaje de puntos ganados con el primer y segundo saque, número de puntos de break y número de puntos ganados al resto. La información obtenida en este trabajo establece unos parámetros de rendimiento que pueden resultar de utilidad para establecer objetivos y evaluar el rendimiento de los jugadores de tenis.

Effects of ultrasound-guided percutaneous neuromodulation on the activation of hip abductors in a professional tennis player: a single case study

Abstract Background Ultrasound-guided percutaneous neuromodulation (US-guided PNM) is defined as electric stimulation of a peripheral nerve at some point of its trajectory via a needle, with analgesic objectives and for the improvement of muscle function. Hip abductor muscles play an important role in the performance of tennis players, participating primarily in the transfer of forces in situations such as stopping and starting, changes in direction and even hitting the ball. Aims The aims of this study were to confirm the effects of US-guided PNM on the superior gluteal nerve on strength and muscle activity in hip abductors and the reduction of the Q angle of the knee during a single-legged squat in a high performance athlete. Material and Methods The subject was a high performance athlete aged 17, without traumatic injuries to the lower limb. The study was conducted in the installations of AY360° Salud y Deporte. The following variables were measured before and after the intervention: force (MVIC), muscle activity (RMS) using surface electromyography and the knee Q angle during a single-legged squat using Kinovea video analysis. A treatment protocol was performed under ultrasound guidance using a PES current with 6 Hz pulses and a pulse duration of 250 μs. In total, 5 applications of 15 seconds' duration were applied with the help of a pointer. Results Improvements were obtained for strength measurements, from a MVIC of 0.13 mV (50.72%) to 0.26 mV (100%), for muscle activity RMS improved from 13.26% to 23.96%, and degrees changed from 23.6° to 21°. Conclusions The US-guided PNM technique, according to the parameters studied, appears to be a useful tool for the improvement of the cited variables.

Nutrition and Agility Training Effect on Performance in Tennis Players

Nutrition and Agility Training Effect on Performance in Tennis Players

Data-driven analysis of point-by-point performance for male tennis player in Grand Slams

Tennis is an individual sport that requires a specialized training and match preparation for every player. Former studies in tennis have tried many approaches to analyze player’s performance using descriptive statistics (such as: match time, rally duration, or game number) and match-related statistics (such as: first and second serve percentage, aces, double faults, or net points won). Although helpful in providing general information of match characteristics and evaluating player performance, there is scarce consideration over how elite male players behave on point-by-point basis according to different contextual variables. This study aimed to assess predictors of point outcome (win/lose) related to year, tournament types, round, set, quality of opposition, game status, serve and rally by using match data of 2011-2016 four Grand Slam. A total of 29675 points were recorded and analyzed through classification tree analysis (exhaustive CHAID). The results showed that the performance of tennis player was conditioned by the familiarity with court surfaces as well as other contextual variables, such as game type, quality of opposition, match status, serve and return and rally length (p< 0.05). These results provide insight for coaches and players when planning the game strategy, allowing more appropriate tactics under different game status.

Effects of plyometric training and conventional training on agility performance in tennis players

Effects of plyometric training and conventional training on agility performance in tennis players

Effects of respiratory muscle training on exercise performance in tennis players

Effects of respiratory muscle training on exercise performance in tennis players

The Impact of Attractiveness on Athletic Performance of Tennis Players

The present study examines whether there is an impact of physical attractiveness on athletic performance of professional tennis players. Moreover, this study analyses whether there are gender-specific differences. Different multiple regressions reveal a significantly positive relationship between physical attractiveness and athletic performance. Regression results show that there are no differences between male and female tennis players. Furthermore, this study examines determinants that influence athletic performance. For managers or coaches, the findings suggest that managers or coaches would benefit from hiring more attractive tennis players. More attractive and therefore more successful tennis players may earn higher prize money and generate greater contracts, for example, in terms of sponsoring. This also creates greater revenues for managers or coaches. This holds true for both, male and female tennis players.

Investigating Aerobic, Anaerobic Combine Technical Trainings' Effects on Performance in Tennis Players

The aim of this study is to investigate eight-week aerobic, anaerobic combine technical trainings' effects on developments of performance. 21 athletes of tennis proficiency students from Sports Sciences Department were joined to the study voluntarily. Participated in the research athletes' ages' mean was 22,2±0,3 year, lengths' mean was 177,3±1,4 cm, weights' mean was 69,5±1,4 kg. Trainings were planned as 8 week and 3 days a week, in each unit training 90 minutes. In the research flexibility, vertical jump, standing long jump, right-left hand-grip strength, back and leg strength, anaerobic power, 20 meters shuttle run test, 5 and 10 meters sprint run, 1 maximal strength and ITN technical tests were applied. For analyzing handled data statistically, SPSS programme was used. Paired Samples t Test was applied as statistical process. Comparing before and after training groups' Flexibility, Strength, 5 and 10 m. Sprint run, Anaerobic Power, 20 m. Shuttle Run Test and ITN Technical Test values; there were statistically found to be different in all measurements(p<0,05). As a result of this study found that, aerobic, anaerobic combine technical trainings affect positively biomotoric, physiologic and technical features.

Quantitative assessment of the serve speed in tennis

A method is presented for assessing the serve speeds of tennis players based on their body height. The research involved a sample of top world players (221 males and 215 females) who participated in the Grand Slam tournaments in 2008 and 2012. The method is based on the linear regression analysis of the association between the player’s body height and the serve speed (fastest serve, average first-serve, and second-serve speed). The coefficient of serve speed (CSS) was calculated as the quotient of the measured and the theoretical value of the serve speed on a regression line relative to the player’s body height. The CSS of >1, 1 and <1 indicate above-average, average, and below-average serve speeds, respectively, relative to the top world tennis players with the same body height. The CSS adds a new element to the already existing statistics about a tennis match, and provides additional information about the performance of tennis players. The CSS can be utilised e.g. for setting the target serve speed of a given player to achieve based on his/her body height, choosing the most appropriate match strategy against a particular player, and a long-term monitoring of the effectiveness of training focused on the serve speed.

A comparison of the physical fitness, athletic performance and competitive achievements of junior and senior tennis players

&lt;p&gt;The Japan Tennis Association established the Tennis Field Test as a tool for aiding the development of effective coaching methods and improving the competitive achievements of individual elite tennis players. On the basis of such evaluations, specific coaching methods can be developed for individual tennis players. This study aims to evaluate the physical fitness and athletic performance of tennis players using the Tennis Field Test, and to compare these attributes between players of different ages and abilities. A total of 48 tennis players participated, of which 24 were junior players (including 15 regional representatives), and 24 were senior players (including 18 national representatives). The subjects were further subdivided into average and superior groups on the basis of their competitive achievements in regional or national tournaments. All subjects participated in the Tennis Field Test, which consists of the following six items: the number of sit-ups performed in 30 sec (an index of muscular endurance), the standing long jump distance (an index of leg power), the sit and reach test (an index of flexibility), the time taken to perform the spider run (an index of agility), the time taken to sprint 10 m (an index of speed), and the distance run in three minutes (an index of whole-body endurance capacity). In this study, the subjects’ sit and reach test data were not examined due to differences in the measurement methods used between junior and senior tennis players. Among the junior tennis players, the superior group performed faster in the spider run than the average group (p = 0.0011). Among the senior tennis players, the superior group achieved a longer mean distance during the three-minute run than the average group (p = 0.0223). The test results of the remaining items for both groups were relatively similar. This study suggests that competitive achievement is associated with agility among junior tennis players, and is associated with whole-body endurance capacity among senior tennis players.&lt;/p&gt;

Numerical and Experimental Procedures for Development of a Dual Body Dynamics to Study the Ball Impact on a Tennis Racquet

The dynamic interaction of the ball/tennis racquet is studied in this work. The elasticity and mass of both accessories have critical importance in the optimized performance of tennis players. This is a leading class of sport and leisure activity having gained high prestige due to historical links to nobles/monarchy society. For the best achievements of the accessories developed for the practice of this sport, advanced lightweight materials allowing high stiffness/mass ratios have been studied constantly. In this work, a numerical model based on dynamic equilibrium concepts of soft elastic bodies in collision was proposed to model the behavior of the ball/racquet pair during the shot. High speed video recording techniques were also implemented to validate the results obtained from the numerical model.

Treinamento mental no tênis: revisão sistemática da literatura

Treinamento mental é uma forma de simulação. O artigo tem objetivo de analisar, na literatura, os efeitos do treinamento mental na performance de tenistas. Utilizou-se as bases de dados LILACS, MEDLINE e SciELO. Para a obtenção dos estudos foram usados os descritores de assunto: tênis; atenção e imaginação. Foram incluídos estudos empíricos e revisões da literatura em língua portuguesa e inglesa. A partir da pesquisa efetuada encontrou-se um total de 2408 artigos. Ao final da seleção 9 estudos atendiam os critérios aplicados. Os estudos revisados apontam que o treinamento mental tem um efeito importante no desempenho dos tenistas.

Improving tennis player performance using system development interpretations methodology

This research demonstrates a unique analytical approach to improving a player’s performance in the game of tennis. We introduce a system development interpretations (SDI) methodology for associating player characteristics and factors in a hierarchical structure. We then show how this tool is applied in a human performance environment such as tennis. This approach was developed as a multi-disciplinary quality tool for process improvement that identifies factor dependencies and depicts their impact on the resulting player performance. From the implementation of the SDI methodology, the research was able to define the tennis player’s difficulties and it has allowed the researchers to build an entire team profile of the Clemson University tennis programme as well as to introduce important conceptual foundations in this field.

Monitoring training loads, stress, immune-endocrine responses and performance in tennis players.

The study aim was to investigate the effect of a periodised pre-season training plan on internal training load and subsequent stress tolerance, immune-endocrine responses and physical performance in tennis players. Well-trained young tennis players (n = 10) were monitored across the pre-season period, which was divided into 4 weeks of progressive overloading training and a 1-week tapering period. Weekly measures of internal training load, training monotony and stress tolerance (sources and symptoms of stress) were taken, along with salivary testosterone, cortisol and immunoglobulin A. One repetition maximum strength, running endurance, jump height and agility were assessed before and after training. The periodised training plan led to significant weekly changes in training loads (i.e. increasing in weeks 3 and 4, decreasing in week 5) and post-training improvements in strength, endurance and agility (P < 0.05). Cortisol concentration and the symptoms of stress also increased in weeks 3 and/or 4, before returning to baseline in week 5 (P < 0.05). Conversely, the testosterone to cortisol ratio decreased in weeks 3 and 4, before returning to baseline in week 5 (P < 0.05). In conclusion, the training plan evoked adaptive changes in stress tolerance and hormonal responses, which may have mediated the improvements in physical performance.

Ranking the performance of tennis players: an application to women’s professional tennis

Paired-comparison models have been previously used in the literature to assess the relative performance of tennis players over a given period of time. In this paper, I discuss how the rankings of tennis players can be modified to address variations in the importance of tennis tournaments, and concerns about under-participation over the tennis season. The methods are applied to the 2011 WTA season, where the WTA-ranked number one player Caroline Wozniacki was often criticized for not being the true top player. The alternative rankings proposed here indicate that Petra Kvitova was the top player in 2011, with Serena Williams a close second. These rankings do appear to perform better in predicting match probabilities in early 2012 than methods based on the official rankings.

Analyzing Movements of Tennis Players by Dynamic Image Processing

Recently, we can easily obtain a fast computer and a digital video camera as their prices go down. In this paper, we describe a method and a system for analyzing performance of tennis players of a given singles tennis game. We assume that a movie of the game has been shot by a digital video camera which is fixed at a place such that the camera could film whole area of the tennis court and the two players, and that we have the sequence of the images in the computer. Using the positions of the players and the ball detected by techniques of image processing and partially by human assistance, we analyzed the game by defining an evaluation function. We made a prototype of a tennis-player-evaluation system by implementing the method. The system appropriately evaluated performances of players of some sample tennis games, although the evaluation function cannot analyze the player's tactics enough.

Vibration attenuation of tennis racquets using tuned vibration absorbers

Modern tennis racquets are made of advanced composite materials resulting in significantly lighter and stiffer structures than traditional wooden or metal racquets. While these high-tech structures have had a profound effect on improving the performance of tennis players, modified structural dynamic behaviour and in particular the vibrational response felt by the players has caused some concern thus raising particular interest in vibration attenuation and the application of dynamic vibration absorbers in modern tennis racquet technology. The use of dynamic vibration absorbers is common in engineering applications where there is a need to attenuate high vibration levels caused by resonant response. The effect of using tuned vibration absorbers to attenuate certain key modes of vibration of a tennis racquet is examined in this paper. Attachment of tuned absorbers has traditionally been affected by attaching to antinodal locations of the primary structure. This does not necessarily convey the effectiveness of attachment at other available locations. To overcome this, an effectiveness criterion is formulated and used to indicate the most beneficial attachment location for the devices. The impulse responses obtained from the model are indicative, if not absolute, that tuned vibration absorbers with small mass values could prove effective in the attenuation of key structural modes of the racquet.

Covert orienting to central visual cues and sport practice relations in the development of visual attention

This study examines the development of controlled covert orienting of visual attention, according to the age and the level of performance of tennis players. Practicers and nonpracticers age 13, 16, and 25 participated in a covert orienting task. On each trial, subjects responded to a target which appeared in one of four locations arrayed horizontally across the display. Three central cues were used: neutral, the cue did not specify in which location the target would appear; valid, the target was present in the cued location on 80% of the trials; invalid, the target was present in one of the uncued locations on the remaining 20% of the trials. The results showed that (1) practicers were not faster than nonpracticers in processing the signals, (2) observers of all ages oriented attention voluntarily to the cued locations, (3) central cues had a smaller effect on older and practiced subjects, and (4) developmental and sport practice factors had similar effects on orienting efficiency. The implications of these findings for theories of attentional development are discussed.