Amateur Tennis Research Articles

테니스 동호회 참여자들이 체험한 카타르시스와 그 의의

The purpose of this study was to explore the nature and meaning of catharsis experienced by tennis club participants. 6 research participants who had consistently participated in amateur tennis activities for more than three years and had won at least one prize in amateur competitions were selected. As a result, the research participants experienced ‘catharsis through stress relief,’ ‘catharsis through overcoming fear,’ ‘catharsis through a sense of relative superiority,’ ‘catharsis through imitating professional athletes,’ and ‘catharsis through knowledge and belonging.’ In conclusion, this study found that the catharsis experienced by tennis club participants was not simply a joy or stress relief from physical funtion, but a complex mental effect. These results made it possible to rediscover not only the external but also the internal values of sports, and provided an opportunity to understand amateur tennis culture from a multifaceted perspective.

Can You Tell Who Scores? An Assessment of the Recognition of Affective States Based on the Nonverbal Behavior of Amateur Tennis Players in Competitive Matches.

The purpose of the present study was to assess whether the recognition of tennis players' affective state associated with their nonverbal behavior would be influenced by (a)the importance of the situation, (b)the point outcome, and (c)the tennis expertise of the observer. Two hundred sixty-nine participants (Mage = 30.51years; 116 female; 79 tennis club members) watched video excerpts showing the nonverbal behavior of amateur tennis players during competitive matches immediately after the end of a rally and were asked to estimate whether the player had just won or lost the point. Results indicate that the recognition rates were higher for situations closer to the end of a game, closer to the end of a set, and with a tighter score during a game. Moreover, recognition rates were higher for lost than for won points, while the tennis expertise of participants had no influence on the recognition rates.

Analysis of Kinetic Chain Mechanism Affecting Energy Flow in Kick Topspin Tennis Serve in Elite and Amateur Tennis Players

Analysis of Kinetic Chain Mechanism Affecting Energy Flow in Kick Topspin Tennis Serve in Elite and Amateur Tennis Players

Acceleration spikes and attenuation response in the trunk in amateur tennis players during real game actions

Although there are numerous locomotion studies analyzing the degree of attenuation of the acceleration spikes in the lower limbs and the trunk, few of these studies relate to tennis, where a high percentage of injuries occur in these body segments. The aim of this study was to describe the acceleration spikes and the attenuation response along the trunk, in real game actions. For this purpose, accelerometers were placed on the lower trunk, the upper trunk, and the head on a sample of 19 players while playing tennis matches. An average of 530 ± 146 acceleration spikes per match were selected in the upper trunk and a clear attenuation response between the upper trunk and the head was found (acceleration spike magnitude was approximately 25 m/s2 in the upper trunk and approximately 20 m/s2 in the head; p < 0.05; with attenuation percentages above 15%). In all players acceleration spikes of the head were below lower and upper trunk acceleration ( p < 0.05 in all repeated measures ANOVAs and effect sizes were above 0.8, or large effect sizes). However, between the lower trunk and upper trunk no clear attenuation was found and although in some players the impact peaks were higher in the lower trunk ( p < 0.05) the effect sizes were negligible or medium (Cohen d < 0.5). In other players the upper trunk peaks were higher than the lower trunk peaks ( p < 0.05) and in a few players there was no significant difference ( p > 0.05). The attenuation in the upper trunk, probably serves as a head protection/stabilization mechanism and more studies are needed to analyze the biomechanics actions underlying this attenuation response.

A longitudinal analysis of injury characteristics among elite and amateur tennis players at different tournaments from electronic newspaper reports.

The non-complexity of tennis, coupled with its health benefits, renders it appealing and encourages varying competitions at different levels of age, gender, and expertise. However, the rapid increase in the participation rates witnesses a surge in injury occurrences, prompting the need for in-depth analysis to facilitate immediate intervention. We employed a media content analysis technique in which tennis-associated articles published in the last 5 years were examined. A total of 207 news reports were gathered and screened for analysis. Subsequently, 71 articles were excluded from the study due to content duplications or summary updates of existing news articles, while 23 news articles were also excluded from the study due to inappropriateness. Finally, 113 news reports directly related to injury in tennis were coded and analyzed. We examined various types of injuries reported from the screened articles with respect to their status (fresh, recurrent, and recovery) across expertise levels i.e., elite, or amateur. Similarly, the incidence of injury occurrences based on the types of tournaments the players engage in was also investigated. A chi-square analysis was employed to achieve the objectives of the study. Occurrences of tennis-associated injuries are disseminated across expertise levels [ = 16.542; p = 0.555], with knee, hip, elbow, and shoulder injuries being highly prevalent in both elite and amateur players. Nevertheless, it was noted that elite players suffered a staggering 72.60% of injury-related problems, while amateur players sustained 27.40% of injuries. Moreover, the status of injury spreads based on types of tournaments [ = 3.374; p = 0.497], with higher occurrences of fresh and recurrent injuries, while low recovery rates were observed. The findings further demonstrated that injuries are sustained regardless of tournament types [ = 39.393; p = 0.321]. However, most of the injuries occurred at international tournaments (85%). Whereas, only 5.30% of the injuries occurred at national/regional tournaments while 9.70% were unidentified. It could be deduced from the findings of this investigation that elite players are more prone to injuries compared with amateur players. Furthermore, the most common tennis-related injuries affect the lower, trunk, and upper regions of the body, respectively. A large number of the reported tennis injuries are fresh and recurrent, with a few recoveries. The international tennis tournaments are highly attributed to injury occurrences as opposed to the national/regional tournaments. The application of the media-based data mining technique is non-trivial in projecting injury-related problems that could be used to facilitate the development of an injury index peculiar to the tennis sport for prompt intervention.

Impact of HIIT Sessions with and without Cognitive Load on Cortical Arousal, Accuracy and Perceived Exertion in Amateur Tennis Players.

The aim of the present study was to investigate the effects of high-intensity interval training (HIIT) exercises, with and without cognitive load, on the accuracy, critical flicker fusion threshold (CFFT), and rating of perceived exertion (RPE) on recreational tennis players. A total of 32 players of tennis at recreational level (25 men and 7 women) were enrolled in this cross-sectional the study. Participants had to perform, randomly, two HIIT sessions. In one of them, cognitive load was induced by conducting an incongruent Stroop during rests. After training accuracy of tennis serve, CFFT, and RPE were measured. Results showed that accuracy after baseline and HIIT without cognitive load were significantly higher than after HIIT with cognitive load. RPE significantly increased (p-value < 0.001) after HIIT sessions in both, with and without cognitive load. However, significant differences were not observed between the two sessions in the RPE (p-value = 0.405). Furthermore, differences were not obtained in the CFFT neither within nor between sessions (p-value > 0.05). Therefore, HIIT with and without cognitive load increased the RPE in recreational tennis players. Furthermore, HIIT sessions with cognitive load significant altered tennis serve accuracy.

Effectiveness of high intensity interval training in amateur tennis players

Background: Training for better physical activity is important for every individual and includes various forms of interventions like strength training, endurance training, agility training, power and speed training which improve the aerobic and anaerobic capacity of the individual.The components of these training are usually used for better performance in sports, both in professionally trained sports athletes as well as amateur athletes. The risk of injuries can be prevented by proper training interventions, in amateur as well as competitive sports performers.Tennis is a competitive sport where, speed, agility and power of the tennis player are continuously challenged. It involves intermittent, high intensity efforts interspersed with periods of low intensity activity, during which active recovery and passive periods take place, over an extended period of time. In this situation, competitive tennis players need a mixture of fitness qualities such as speed, agility and power, combined with a well-developed aerobic fitness to achieve high levels of performance. HIIT has been found to be a time efficient training method for improving physical performance in players and is now widely adopted in team and racquet sports. This “time efficient” method is gaining acceptance among recreational athletes to improve their performance in less duration. One of the most popular high intensity interval workouts for improving strength, aerobic capacity, power and speed in sports players is the ‘Tabata Interval Workout’. It is a high intensity interval training method originally created by Japanese researcher Izumi Tabata and is one the best cardio / metabolic conditioning workouts every discovered because it is simple to understand and easy to apply. Data collection and analysis: All the players’ base line data on outcome measures of Cooper 12 minute run test and 20 meter sprint time were collected. HIIT interval intervention was given on tennis court to all the participants for 3 days in a week for 6 weeks duration (18 training sessions) as per the Tabata protocol. Following this, outcome measures were re assessed. Eleven participants completed the entire 18 training sessions spread over six weeks duration. Data analysis of outcome measures was done using SPSS software version 20.0 and a one sample paired t was applied to evaluate the effect of HIIT on a continuous scale. Results: There was a significant improvement in cooper 12 minutes run test and the direction of the t-value (t(10)=-9.60, p

Flexibility, Position, and Strength of the Shoulder Complex in Pediatric and Adult Amateur Tennis Athletes.

Understanding the musculoskeletal adaptations in the shoulder complex of varying ages of tennis athletes may suggest preventive protocols and conditioning and rehabilitation programs to this population. This study aimed to generate a bilateral descriptive profile of shoulder flexibility, scapular and clavicular position, and muscle strength in pediatric and adult amateur tennis athletes. The outcome measures were compared between groups and sides. The number and percentage of athletes "at risk" according to cutoff values for shoulder range of motion (ROM) were also analyzed. Cross-sectional study. 36 pediatric and 28 adult amateur tennis athletes were tested. Outcome measures were ROM of shoulder flexion, abduction, internal and external rotation, posterior capsule tightness, pectoralis minor index (PMI), scapular upward rotation, clavicular elevation, and strength of the external rotators, serratus anterior, and lower trapezius of the dominant/nondominant sides. Pediatric athletes had greater dominant side external rotation (P = .01) and total ROM (P = .04), increased Low Flexion test (P = .01), and decreased PMI (P = .01) compared with the adults. Bilaterally, the pediatric athletes had greater dominant side external rotation ROM (P < .01) and decreased PMI (P = .002) as compared with their nondominant side, whereas the adults displayed lower values on posterior capsule tightness (P = .01) and decreased PMI (P = .02) on their dominant side compared with their nondominant side. For the remaining outcomes, no interaction effects were observed. The cutoff values for shoulder ROM showed that several athletes were "at risk" of shoulder problems. Upper extremity adaptations at the shoulder are present in both pediatric and adult tennis athletes. These data can assist clinicians in better understanding the biomechanical adaptations in the shoulder of amateur tennis athletes in different age groups.

Analysis of professional and amateur tennis serves using computer pose detection

Incorporating computer vision and machine learning into sports is an effective and efficient way to improve players’ skills. It is often quite challenging to know specifically where a player can fix their performance just by playing or looking at videos. Advances in computer vision allow one to convert generic video imagery of a person to generate limb coordinates as a function of time and apply that to analyze the tennis serves of professionals, semi-professionals, and amateur players. We hypothesized that the overall movement of different players’ serves is similar despite their skill level, but the key difference is the timing during the serve at which their racket makes contact with the ball. We analyzed video imagery of 23 different tennis players serving, with each player having 4 to 5 serves, and generated x-y coordinates of the players’ limbs throughout the duration of the serve. We then analyzed the full dynamics of each players’ serve and identified key differences between players of varying skill level. Based only on the different timing between skill levels, we were able to determine the skill level of players from a generic video. Identifying clear differences between professional and amateur athletes can greatly improve the focus of training and technique.

RESEARCH ON ATHLETE’S AEROBIC AND ANAEROBIC EXERCISE ABILITY WITH BALANCED NUTRITION

ABSTRACT Introduction: The need for a lactic acid cycle eliminates lactic acid produced during exercise. This process requires energy consumption. D-ribose supplementation can increase muscle cell energy, accelerate the synthesis of PRPP in the heart and skeletal muscle, and eliminate the pentose phosphate pathway in the low limit of glucose-6-phosphate dehydrogenase activity; it doubles the speed of ATP recovery, so supplementing ribose can improve exercise capacity and accelerate the elimination of lactic acid to improve recovery ability. Objective: Supplementing D-ribose can increase muscle cell energy and accelerate the regeneration of ATP in the myocardium and skeletal muscle. This experiment intends to explore the effects of anaerobic and aerobic exercise and anaerobic exercise capacity and recovery ability after supplementing D-ribose granules by observing the changes in exercise tests before and after nutritional supplementation and recovery indicators after exercise. Methods: The thesis used a paired design to randomly divide 24 male amateur tennis players into two groups (12 in each group): physical training group (control group), physical training + nutrition D-ribose group (test group), and the D- The effect of ribose on the aerobic and anaerobic exercise capacity of amateur tennis players. Results: The observation indexes of the two groups before the test were not statistically significant (P&gt;0.05); after the test for eight weeks, the aerobic capacity indexes of the test group were higher than those of the control group (P&lt;0.05), and also higher than those before the test (P&lt;0.05)); The recovery of 3minHR and 5minHR of the experimental group after exercise was significantly faster than that of the control group (P&lt;0.05). Conclusions: Nutritional D-ribose supplementation can enhance the aerobic training effect of amateur tennis players, improve aerobic and anaerobic exercise capacity, and accelerate heart rate recovery after exercise. Level of evidence II; Therapeutic studies - investigation of treatment results.

아마추어 테니스 선수의 심리기술, 스포츠 자신감, 인지된 경기력과의 관계

아마추어 테니스 선수의 심리기술, 스포츠 자신감, 인지된 경기력과의 관계

Case Report : Multiple Stress Fractures (hamate, triquetrum, 2nd, 3rd, and 4th Metacarpal bones) in an Amateur Tennis Player

Background: upper extremity stress fractures are infrequent events in tennis sport. According to our literature, we have only identified 6 case reports of upper limb stress fractures among amateur or professional tennis players. To the best of our knowledge, this is the only case report where stress fractures occur in: hamate, triquetrum, 2nd, 4th, and 5th metacarpal bones simultaneously. &#x0D; Case presentation: 27 years old lady, presented with acute burning pain at the base of her right thumb. There was not a history of direct trauma. Her symptoms start to appear after 3 days of playing tennis. Physical examination was negative for tenderness, swelling and erythema. The rheumatoid factor was elevated (20.3 iu/ml). the diagnosis of multiple stress fractures was made by the suggestive MRI findings. &#x0D; Conclusion: Although stress fractures of the upper limbs are not common, it is of a great value to keep the clinical suspicion high towards it. Especially in amateur or professional athletes with persistent or worsening symptoms. The best modality to confirm such fractures is MRI.

Diagnosis in Tennis Serving Technique

Tennis is a sport with a very complex technique. Amateur tennis players have trainers and/or coaches, but are not usually accompanied by them to championships. Curiously, in this sport, the result of many matches can be changed by a small hint like ‘hit the ball a little higher when serving’. However, the biomechanical of a tennis stroke is only clear to an expert. We, therefore, developed a prototype of a rule-based expert system (RBES) aimed at an amateur competition player that is not accompanied by his/her coach to a championship and is not serving as usual (the RBES is so far restricted to serving). The player has to answer a set of questions about how he/she is serving that day and his/her usual serving technique and the RBES obtains a diagnosis using logic inference about the possible reasons (according of the logic rules that have been previously given to the RBES). A certain knowledge of the tennis terminology and technique is required from the player, but that is something known at this level. The underlying logic is Boolean and the inference engine is algebraic (it uses Groebner bases).

REASONS FOR TENDING TOWARDS TO TENNIS AND THE REALIZATION LEVELS OF EXPECTATIONS OF AMATEUR TENNIS PLAYERS FROM TENNIS – THE CASE OF DİYARBAKIR PROVINCE, TURKEY

The purpose of this research was to determine the factors encourage female and male amateur tennis players in Diyarbakir for tennis; reasons and expectations of them about tennis. The population consisted of almost 250 tennis players in Diyarbakir Province. The research sample was limited by entirely 121 randomly selected amateur tennis players (39 female, and 82 male) who interest in tennis at Dicle University and participated in the Diyarbakir Kayapinar municipality tennis tournament. The survey used in the study was developed by Sunay et al., in 2006. This Likert scaled survey consisted of 4 parts. The 1st part of the survey included demographic information; the 2nd part of the survey consisted of expectations from tennis sport; the 3rd chapter of the same survey asks the reasons for interesting in tennis in an amateur way; finally, the factors encourage for tennis sport can be seen in the 4th part. T-test and ANOVA tests were applied to determine whether the difference between the comments of participators related to gender, marital status, age, and educational background. Pearson Correlation test was applied to specify the relationship between groups and variables. For study findings, expectations of amateur tennis players in Diyarbakir toward being a coach and popular athlete are at a high level; the effect of physical education teachers and mass communication such as television and media organs is very few in tending towards to tennis. Also, it is revealed that thoughts about making money and leading a good life become prominent as a reason for interesting in tennis. Article visualizations:

The Acute Effects of Dynamic and Static Stretching on Tennis Serve Targeting Performance

The study investigates the acute effects of dynamic and static stretching on the tennis serve targeting performance of amateur tennis players. Twenty male athletes who were between the ages of 16-24 years and played tennis for at least 1 year (21.40±2.16 years, 181±0.06 cm, 71.85±7.42 kg, tennis playing time 1.55±0.88 years) voluntarily participated in the study. Prior to the pre-tests and after applying the traditional warm-up protocol, serve targeting test (STT) was applied to all participants. In the post-tests, STT was used after applying three different warm-up methods on three different days (48-hour rest interval). The warm-up stages included No Treatment (NT) (jogging, rally), Static Stretching (SS) and Dynamic Stretching (DS). In the statistical analysis, the homogeneity of the data was investigated using the Shapiro Wilk test. The Wilcoxon test was used to compare the pre-test and post-test results of the non-homogeneous data; Friedman test was used to compare the three different stretching methods with each other; in the paired comparisons of the groups, the paired samples t-test was used for the homogenous data and Wilcoxon test was used for the non-homogeneous data. In conclusion, stretching exercises before serving increased the serve targeting performance and the increase in the dynamic stretching exercises was higher than that in static stretching exercises.

ACTN3 R577X Genotype in Professional and Amateur Tennis Players.

Moreno-Pérez, V, Machar, R, Sanz-Rivas, D, and Del Coso, J. ACTN3 R577X genotype in professional and amateur tennis players. J Strength Cond Res 34(4): 952-956, 2020-Several investigations have concluded that the RR genotype in the ACTN3 R577X polymorphism is overrepresented in elite athletes of strength- and power-based sports when compared with nonelite populations, suggesting a positive role of this genotype on physical performance. However, no investigation has been geared to determine the distribution of this polymorphism in elite tennis players. The aim of this study was to compare the frequency distribution of the ACTN3 R577X genotype in professional and nonprofessional tennis players to determine whether this polymorphism has an association with tennis performance. A total of 128 tennis players volunteered to participate in this study. From the total, 56 were professional tennis players (16 were top 10 in Women Tennis Association/Association of Tennis Professionals [WTA/ATP] rankings, 22 were top 100 in WTA/ATP rankings, and 18 were ranked > top 100 in the WTA/ATP rankings), and the remaining 72 were categorized as nonprofessional. Chi-squared tests were used to assess differences in the distribution of RR, RX, and XX genotypes between the different performance categories. The distribution of the RR, RX, and XX genotypes was similar in professional (33.9, 48.2, and 17.9%) and nonprofessional tennis players (37.5, 40.3, and 22.2%; p = 0.650). Furthermore, the distribution of the ACTN3 R577X polymorphism was not different in top 10 (25.0, 50.0, and 25.0%), top 100 (31.8, 50.0, and 18.2%), and WTA/ATP-ranked players (44.4, 44.4, and 11.2%; p = 0.847). These results indicate that the distribution of the ACTN3 R577X genotype is similar in tennis players of very different performance levels. This outcome suggests that the ACTN3 genotype was not associated with elite tennis performance.

Hypothalamo-pituitary-adrenal axis activity and related factors in adolescent during a tennis tournament

Aim: Adolescence is an important period of development and during this period young people are more susceptible to mental illnesses. Therefore, a comprehensive knowledge of the factors that mediate stress response can help developing our understanding of these diseases. The aim of this study is to examine the activity of hypothalamo–pituitary–adrenal axis and determine factors affecting this activity in adolescents. Material and Methods: The adolescents between the ages of 14 and 17, who participated in the official amateur tennis tournament, were included in the study. The data form, including questions for the assessment of the stress level and sociodemographic variables was filled. Then, salivary cortisol levels were measured before (-5 minutes) and after (+5 minutes) the first match of the official tennis tournament. Results: The mean salivary cortisol levels were 40.8±53.8 ng/ml, before the game and 98.8±150.5 ng/ml, after the game (p=0.008). The salivary cortisol levels were statistically higher, after the game, in males, those who won, and those who felt anxious compared the before. Conclusion: The results of this study showed that salivary cortisol level can be used in the assessment of stress response in adolescents and various factors such as gender, mood, and state of winning are effective on cortisol response.

Ever tried. Ever failed. No matter? On the demotivational effect of losing in repeated competitions

Many important life goals require repeated confrontation with competitors. Losing in such competitions may discourage individuals and make them postpone further competitions, thereby harming future prospects. I use data on 44,799 amateur tennis players, who are randomly paired in repeated competitions, to study the causal effect of losing on the time to the next tournament participation. Results show that individuals wait on average 10% longer to enroll again after losing. Furthermore, losing against relatively weaker opponents leads to a discontinuously larger effect than losing against relatively stronger opponents, indicating that individuals do not rationally update beliefs about winning probabilities but instead use their ranking as reference point when evaluating defeats.

The Acute Effects of Dynamic and Static Stretching on Tennis Serve Targeting Performance

The study investigates the acute effects of dynamic and static stretching on the tennis serve targeting performance of amateur tennis players. Twenty male athletes who were between the ages of 16-24 years and played tennis for at least 1 year (21.40±2.16 years, 181±0.06 cm, 71.85±7.42 kg, tennis playing time 1.55±0.88 years) voluntarily participated in the study.Prior to the pre-tests and after applying the traditional warm-up protocol, serve targeting test (STT) was applied to all participants. In the post-tests, STT was used after applying three different warm-up methods on three different days (48-hour rest interval). The warm-up stages included No Treatment (NT) (jogging, rally), Static Stretching (SS) and Dynamic Stretching (DS).In the statistical analysis, the homogeneity of the data was investigated using the Shapiro Wilk test. The Wilcoxon test was used to compare the pre-test and post-test results of the non-homogeneous data; Friedman test was used to compare the three different stretching methods with each other; in the paired comparisons of the groups, the paired samples t-test was used for the homogenous data and Wilcoxon test was used for the non-homogeneous data. In conclusion, stretching exercises before serving increased the serve targeting performance and the increase in the dynamic stretching exercises was higher than that in static stretching exercises.

Statistic Analysis on Techniques Applied by Nadal in 2017 French Open

Focusing on the techniques applied by Rafael Nadal in 2017 French Open, the study adopts the video observation, document literature, mathematical statistics and contrastive analysis to analyze the techniques of Nadal statistically in order to explore the characteristics and rules of his techniques, helping improve the technical level of the amateur tennis sport and providing a theoretical basis for tennis teaching and training in China.