Articoli di riviste: "Biomechanics of tennis"

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Elliott, B. "Biomechanics and tennis". British Journal of Sports Medicine 40, n. 5 (1 maggio 2006): 392–96. http://dx.doi.org/10.1136/bjsm.2005.023150.

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Hong, Hui Hui, e Liang Han. "Sports Biomechanical Research and Exploration on the Tennis Injuries". Applied Mechanics and Materials 494-495 (febbraio 2014): 301–4. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.301.

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Tennis is very popular, but the incorrect action produces sports injuries. The knowledge of sports biomechanics is used in sports injury research on tennis. Two mainly classical research methods on tennis sports biomechanics are theoretical research and experimental study. This paper introduces the technical features of two research methods, theoretical research is mainly based on the model. The experimental study is mainly based on three systems of the kinematics, dynamics and biological measurement. The differences among them are compared in order to provide the overall ideas for study on sports injury of tennis.

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Elliott, Bruce C. "Biomechanics of the Serve in Tennis". Sports Medicine 6, n. 5 (novembre 1988): 285–94. http://dx.doi.org/10.2165/00007256-198806050-00004.

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Groppel, Jack L. "The Biomechanics of Tennis: An Overview". International Journal of Sport Biomechanics 2, n. 3 (agosto 1986): 141–55. http://dx.doi.org/10.1123/ijsb.2.3.141.

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KIBLER, W. BEN. "Clinical biomechanics of the elbow in tennis". Medicine & Science in Sports & Exercise 26, n. 10 (ottobre 1994): 1203???1206. http://dx.doi.org/10.1249/00005768-199410000-00004.

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Wong, Duo Wai-Chi, Winson Chiu-Chun Lee e Wing-Kai Lam. "Biomechanics of Table Tennis: A Systematic Scoping Review of Playing Levels and Maneuvers". Applied Sciences 10, n. 15 (28 luglio 2020): 5203. http://dx.doi.org/10.3390/app10155203.

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This present study aims to review the available evidence on the biomechanics of table-tennis strokes. Specifically, it summarized current trends, categorized research foci, and biomechanical outcomes regarding various movement maneuvers and playing levels. Databases included were Web of Science, Cochrane Library, Scopus, and PubMed. Twenty-nine articles were identified meeting the inclusion criteria. Most of these articles revealed how executing different maneuvers changed the parameters related to body postures and lines of movement, which included racket face angle, trunk rotation, knee, and elbow joints. It was found that there was a lack of studies that investigated backspin maneuvers, longline maneuvers, strikes against sidespin, and pen-hold players. Meanwhile, higher-level players were found to be able to better utilize the joint power of the shoulder and wrist joints through the full-body kinetic chain. They also increased plantar pressure excursion in the medial-lateral direction, but reduced in anterior-posterior direction to compromise between agility and dynamic stability. This review identified that most published articles investigating the biomechanics of table tennis reported findings comparing the differences among various playing levels and movement tasks (handwork or footwork), using ball/racket speed, joint kinematics/kinetics, electromyography, and plantar pressure distribution. Systematically summarizing these findings can help to improve training regimes in order to attain better table tennis performance.

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Paul Roetert, E., Howard Brody, Charles J. Dillman, Jack L. Groppel e Jeanne M. Schultheis. "The Biomechanics of Tennis Elbow: An Integrated Approach". Clinics in Sports Medicine 14, n. 1 (gennaio 1995): 47–57. http://dx.doi.org/10.1016/s0278-5919(20)30257-x.

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KIMURA, Daisuke, Akira IWATA, Masato SHIMA, Kuniharu OKUDA e Jun KAWASAKI. "Biomechanics of Serve Motion in Wheelchair Tennis Players". Journal of the Japanese Physical Therapy Association 16, n. 1 (2013): 41. http://dx.doi.org/10.1298/jjpta.vol16_010.

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Li, Liang, Feng Ren e Julien S. Baker. "The Biomechanics of Shoulder Movement with Implications for Shoulder Injury in Table Tennis: A Minireview". Applied Bionics and Biomechanics 2021 (8 maggio 2021): 1–6. http://dx.doi.org/10.1155/2021/9988857.

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A high proportion of shoulder injuries in table tennis players are common, which is both a diagnostic and therapeutic challenge. An understanding of the interaction between biomechanical function of the shoulder and mechanisms of shoulder injuries in table tennis players is necessary to prevent injury and to conduct clinical treatment of the shoulder as soon as possible. The purpose of this minireview was to select the available evidence on the biomechanical characteristics of shoulder movement and potential relationships with various shoulder injuries that are common in table tennis players. Five studies revealed interesting biomechanical characteristics of shoulder movement patterns in table tennis players: large internal rotation torque, an increased torsion-rotation movement, and a greater angular velocity of internal rotation were found. Two studies were noted that were related to specific shoulder injury: glenohumeral internal rotation deficit (GIRD) and impingement syndrome. Unfortunately, it is difficult to draw conclusions on the mechanisms of shoulder injury in table tennis players due to the little evidence available that has investigated shoulder injury mechanisms based on biomechanical characteristics. Future studies should focus on the potential relationship between the biomechanical characteristics of the shoulder and injury prevalence to provide valuable reference data for clinical treatment.

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Roetert, E. Paul, Todd S. Ellenbecker e Machar Reid. "Biomechanics of the Tennis Serve: Implications for Strength Training". Strength and Conditioning Journal 31, n. 4 (agosto 2009): 35–40. http://dx.doi.org/10.1519/ssc.0b013e3181af65e1.

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Roetert, E. Paul, Mark Kovacs, Duane Knudson e Jack L. Groppel. "Biomechanics of the Tennis Groundstrokes: Implications for Strength Training". Strength and Conditioning Journal 31, n. 4 (agosto 2009): 41–49. http://dx.doi.org/10.1519/ssc.0b013e3181aff0c3.

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Gherţoiu, Dan Mihai, e Cosmin Mihai Moca. "Youth Tennis Player Serves Accuracy With Respect to Different Rackets Variations". Studia Universitatis Babeş-Bolyai Educatio Artis Gymnasticae 65, n. 4 (30 dicembre 2020): 59–66. http://dx.doi.org/10.24193/subbeag.65(4).31.

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"ABSTRACT. Introduction. Historically, biomechanics research has examined discrete kinematics, however there is now a general appreciation that tennis racket weight, size and sweet-spot vibration play equally important roles in the execution of assorted movement skills in youth players. Objective. The aim of this paper was to determine if young tennis players can accurately perform a tennis serve with altered forms of their preferred rackets. Materials and Methods. The participants in this study were young tennis players (N = 12), males, with the ages between 14 and 15 years old. Results. There was a significant difference in the scores for weighted and threaded rackets for both the left-to-right and right-to-left serve directions. Conclusion. Our study managed to show that a different kind of racket can affect the serving accuracy in youth tennis players"

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Tubez, François, Bénédicte Forthomme, Jean-Louis Croisier, Olivier Brüls, Vincent Denoël, Julien Paulus e Cédric Schwartz. "Inter-Session Reliability of the Tennis Serve and Influence of the Laboratory Context". Journal of Human Kinetics 66, n. 1 (27 marzo 2019): 57–67. http://dx.doi.org/10.2478/hukin-2018-0064.

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AbstractTo meet the demand of a player’s entourage (e.g., coaches and medical staff), it is important for the biomechanics specialist to perform repeatable measures. To the best of our knowledge, to date, it has not been demonstrated whether similar results are obtained between two sessions of testing or between laboratory and field sport kinematic protocols with regard to the tennis serve. This study had two primary aims. First, the inter-session repeatability of biomechanical variables of a tennis serve was evaluated. Second, the differences between laboratory and field evaluations were studied. Thirteen national tennis players (ITN 3) performed the same 28 markers’ set laboratory test twice two weeks apart, and other thirteen national players (ITN 3) performed two 4 markers’ set tests both in the laboratory and on an official tennis court one week apart. A 3D motion system was used to measure lower-limb, pelvis, trunk, dominant arm and racket kinematics. A force plate was used to evaluate kinetics of legs’ drive in the laboratory. A personal method based on a point scoring system was developed to evaluate the ball landing location accuracy. We observed that the majority of the studied variables were acceptable for excellent relative reliability for the inter-session analysis. We also showed that the impact of the laboratory versus field context on the player’s serve was limited

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Mukaromah, Dyah Ismi, Husnul Hadi e Muh Isna Nurdin. "Analisis Gerakan Forehand Pada Tenis Meja Di Klub PTM Elektra Kab Demak". Journal of Physical Activity and Sports (JPAS) 1, n. 1 (28 dicembre 2020): 25–31. http://dx.doi.org/10.53869/jpas.v1i1.7.

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The background is because the athlete only uses a forehand to defend, whereas a forehand is good for attacking. The formulation of the problem, how to analyze the biomechanics of forehand motion in table tennis and how good hand movements, body position and leg position using forehand movements, whether the 9 angles of the movement affect the entry or absence of the ball. The aim of this research is to know how the biomechanical analysis of forehand motion in table tennis and to find out how good hand movement, body position and leg position using the forehand movement of the 9 angles affect the entry or absence of the ball. Based on processing using statistics, there is a significant difference in comparisons when the ball position hits the bet; 1) wrist position 167.875o-223.8o; 2) bending of the right elbow 82,9o-92,1o; 3) bending of the left elbow 86.24o-95.82o; 4) opening of the upper arm of the right hand 71.06o-78.95o; 5) opening of the upper arm of the left hand 45.45o-50.5o; 6) leaning body 145.54o-161.71o; 7) right leg bending 152.6o-169.5o; 9) distance of both feet 44.05o-48.94o. Keywords: Forehand, Table Tennis. ABSTRAK Latar belakang karena atlet hanya menggunakan pukulan forehand untuk bertahan, padahal pukulan forehand bagus untuk menyerang. Rumusan masalah, bagaimana analisis biomekanika gerakan forehand pada cabang olahraga tenis meja dan bagaimana gerakan tangan, posisi badan dan posisi kaki yang baik dengan menggunakan gerakan forehand apakah dari 9 sudut gerakan tersebut mempengaruhi masuk atau tidaknya bola. Tujuan penelitin ingin mengetahui bagaimana analisis biomekanika gerakan forehand pada cabang olahraga tenis meja dan untuk mengetahui bagaimana gerakan tangan, posisi badan dan posisi kaki yang baik dengan menggunakan gerakan forehand apakah dari 9 sudut gerakan tersebut mempengaruhi masuk atau tidaknya bola.Berdasarkan pengolahan dengan menggunakan statistik, terdapat perbedaan perbandingan yang signifikan saat posisi bola mengenai bet; 1) posisi pergelangan tangan 167,875o-223,8o; 2) tekukan siku kanan 82,9o-92,1o; 3) tekukan siku kiri 86.24o-95.82o ; 4) bukaan lengan atas tangan kanan 71,06o-78,95o ; 5) bukaan lengan atas tangan kiri 45,45o-50,5o; 6) kecondongan badan 145,54o-161,71o; 7) tekukan kaki kanan 152,6o-169,5o ; 9) jarak kedua kaki 44,05o-48,94o. Kata kunci: Forehand, Tenis Meja.

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De Smedt, T., A. de Jong, W. Van Leemput, D. Lieven e F. Van Glabbeek. "Lateral epicondylitis in tennis: update on aetiology, biomechanics and treatment". British Journal of Sports Medicine 41, n. 11 (1 novembre 2007): 816–19. http://dx.doi.org/10.1136/bjsm.2007.036723.

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Martin, Caroline, Benoit Bideau, Paul Delamarche e Richard Kulpa. "Influence of a Prolonged Tennis Match Play on Serve Biomechanics". PLOS ONE 11, n. 8 (17 agosto 2016): e0159979. http://dx.doi.org/10.1371/journal.pone.0159979.

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Kekelekis, Afxentios, Pantelis Theodoros Nikolaidis, Isabel Sarah Moore, Thomas Rosemann e Beat Knechtle. "Risk Factors for Upper Limb Injury in Tennis Players: A Systematic Review". International Journal of Environmental Research and Public Health 17, n. 8 (16 aprile 2020): 2744. http://dx.doi.org/10.3390/ijerph17082744.

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Studies in tennis injuries have successfully identified the incident rate, the location, and the type of the injury. The majority of the studies have multiple perspectives (epidemiology, biomechanics, performance), however only a few studies were able to identify risk factors or mechanisms that contribute to tennis injuries. Until now, there has not been a systematic literature review that identifies risk factors for tennis injuries. The objective of this review was to identify and critically appraise the evidence related to risk factors for upper limb injury in tennis players. A systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework, using a research question developed by the Patient Problem, (or Population) Intervention, Comparison or Control, and Outcome (PICO) methodology. The quality of the studies included was moderate to low, indicating prolonged tennis (exposure to tennis), scapular dyskinesis, muscle fatigue, scapulothoracic properties, shoulder kinetics or kinematics, skill level, and technique as risk factors for upper limb injury in tennis players. In this review, it is evidenced that the majority of tennis injuries are associated with overuse and a chronic time course, however, tennis injuries do not arise from a linear combination of isolated and predictive factors. Therefore, the multifactorial and complex nature of tennis injuries has to be further examined. The necessity of more randomized control trial studies is highly recommended.

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GILLET, BENOIT, ISABELLE ROGOWSKI, ELODIE MONGA-DUBREUIL e MICKAËL BEGON. "Lower Trapezius Weakness and Shoulder Complex Biomechanics during the Tennis Serve". Medicine & Science in Sports & Exercise 51, n. 12 (dicembre 2019): 2531–39. http://dx.doi.org/10.1249/mss.0000000000002079.

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Eygendaal, D., F. T. G. Rahussen e R. L. Diercks. "Biomechanics of the elbow joint in tennis players and relation to pathology". British Journal of Sports Medicine 41, n. 11 (1 novembre 2007): 820–23. http://dx.doi.org/10.1136/bjsm.2007.038307.

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Syed, Fahad, Karen Myrick, Juan Garbalosa e Richard Feinn. "A Comparison of Forehand Swing Biomechanics between Male and Female Tennis Players". Medicine & Science in Sports & Exercise 51, Supplement (giugno 2019): 53. http://dx.doi.org/10.1249/01.mss.0000560653.37130.35.

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Mao, Bi Jian. "Biomechanical Analysis of Two Techniques Performed in Table Tennis". Applied Mechanics and Materials 182-183 (giugno 2012): 1658–61. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1658.

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Table tennis, as one of the most popular sports in China, has grown considerably since its developed in the 19th century in England. The biomechanics of the research methods in many sports has been widely used, for understanding of sports and technology and improve sports played an important role Fast break and curving ball technology is this game’s core technology. In this study, we based on fast break and curving ball features of kinematic to reveal the table tennis forehand techniques. Eight male volunteers were participated in this tests, the speed of the racket during the playing was recorded through Vicon Motion Capture System. The action was divided into three major phases: back swing, attack and follow through. At the end of back swing stage, break and curl technologies, the speed parameter shows some differences. While the peak speed in ball contact frame, the speed of curling ball was significantly higher than the fast break. Further study could be carried out in detailing analysis at sub-stage of the action for integral considering.

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Jildeh, Toufic R., Kelechi R. Okoroha, Joseph S. Tramer, Jorge Chahla, Benedict U. Nwachukwu, Shawn Annin, Vasilios Moutzouros, Charles Bush-Joseph e Nikhil Verma. "Effect of Fatigue Protocols on Upper Extremity Neuromuscular Function and Implications for Ulnar Collateral Ligament Injury Prevention". Orthopaedic Journal of Sports Medicine 7, n. 12 (1 dicembre 2019): 232596711988887. http://dx.doi.org/10.1177/2325967119888876.

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Background: As the incidence of overuse injuries to the medial elbow in overhead athletes continues to rise, recent evidence suggests a link between these injuries and alterations in biomechanics produced by athlete fatigue. Previous studies have evaluated the effect of fatigue on elbow injuries using a wide array of fatigue protocols/athletic tasks, and, as a consequence, the results have been heterogeneous. Purpose: To determine whether there is a uniform alteration in neuromuscular function or biomechanics as the overhead athlete fatigues. Furthermore, this study sought to determine whether player fatigue should be accounted for in ulnar collateral ligament (UCL) injury prevention programs. Study Design: Systematic review. Methods: A systematic review of the literature using PubMed and MEDLINE databases was performed. Keywords included fatigue, upper extremity, baseball, pitcher, throwing, and muscle activity. Inclusion criteria consisted of original research articles in the English language involving healthy athletes, use of fatigue protocols, and the evaluation of at least 1 upper limb biomechanical variable. Results: A total of 35 studies involving 644 athletes (90 females, 554 males; mean age, 20.2 years) met the inclusion criteria. General fatigue protocols were used in 2 investigations, peripheral protocols were used in all 35 studies, and 5 different athletic tasks were studied (simulated baseball game, overhead throwing, high-effort swimming, simulated tennis game, and overhead serving). There was a uniform decrease in muscle force production and proprioception in athletes after completing a fatigue protocol. However, there was no consistency among studies when evaluating other important upper limb biomechanical factors. The fatigue protocols did not consistently produce statistically significant changes in elbow torque, pitching biomechanics, or ball velocity. Conclusion: A uniform decrease in muscle force production and proprioception was found after fatigue protocols; however, a majority of fatigue protocols published in the current literature are inconsistently measured and produce heterogeneous results. Therefore, currently, no recommendations can be made for changes in UCL injury prevention training programs to account for potential effects of fatigue. The effect of muscle force production and proprioception on upper extremity injuries should be evaluated in future studies.

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Hyland, Susan, Julie Nitschke e Thomas A. Matyas. "The extension-adduction test in chronic tennis elbow: Soft tissue components and joint biomechanics". Australian Journal of Physiotherapy 36, n. 3 (1990): 147–53. http://dx.doi.org/10.1016/s0004-9514(14)60522-5.

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ONG, Alexander, Michael KOH e Quintin ROMAN. "Discussion - Integrating Sports Science Disciplines of Biomechanics and Strength Training in the Teaching of Table-tennis Drives - An Example in Singapore Sports School Experience". Asian Journal of Physical Education & Recreation 12, n. 1 (1 giugno 2006): 63–68. http://dx.doi.org/10.24112/ajper.121312.

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LANGUAGE NOTE | Document text in English; abstract also in Chinese.The Singapore Sports School was formed in 2003 as the result of a government initiative to strive for a sporting nation. With this emphasis on sporting success, the integration of sports science in the development of young athletes is a core strategy used in the teaching and coaching pedagogy of the sports school. The purpose of this article is to highlight an example of such a strategy used in teaching table-tennis skills. Specifically, our example will feature an integration of the disciplines of sports biomechanics, strength and conditioning principles and table-tennis coaching pedagogy, as a framework for coaching specific aspects of table-tennis forehand and backhand drives; and, draw implications of such an approach for use in sports programmes of schools in general.新加坡體育學校成立於2003年，是政府邁向運動之國目標的其中一個主要計畫。因此，這篇論文主要描述怎樣運用運動科學在於乒乓技術的進展。它內容將讓你能進一步瞭解如何運用運動生物力學與體能學在乒乓拉球與及其它運動方面。

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Prabhakar, Sharad, Mandeep S. Dhillon, Himmat Dhillon, Sidak Dhillon e Dharam S. Meena. "Does Forehand Racquet Handgrip influence Incidence and Type of Wrist Injury in Tennis? A Preliminary Study in Indian Tennis". Journal of Postgraduate Medicine, Education and Research 52, n. 1 (2018): 1–4. http://dx.doi.org/10.5005/jp-journals-10028-1265.

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ABSTRACT Introduction Tennis is one of the major global sports, with over 75 million players participating in the game in more than 200 countries affiliated with the International Tennis Federation. The upper extremity is particularly susceptible to injury in tennis because of the use of the racquet, which acts as a lever, and due to the effect of repetitive stroke play on the dominant limb. Materials and methods Between July 2009 and October 2010, in a prospective study involving players at a local tennis academy, 219 tennis players were evaluated for wrist injury. A specialized injury proforma was filled up for these players and parameters, such as injury type, mechanism of injury, forehand racquet grip (eastern, western and semiwestern), missed time from game, and treatment (medical or surgical) were recorded. The players were grouped into low-intensity players (those with average daily practice hours < 2.5) and high-intensity players (with ≥ 2.5 daily average practice hours). Statistical analysis was performed to assess the association of different wrist injuries with type of forehand handgrip. Results Out of 219 players, 14 players were lost to follow-up. Out of the remaining 205 players, a total of 157 (76%) players were aware of the type of handgrip they were using, while 18 (9%) players did not have any knowledge of their handgrip. The remaining 30 (15%) players were found to be confused as far as handgrip was concerned. Out of 157 players who had knowledge regarding handgrip, 102 players were using the semiwestern grip, 44 were using the western grip, and the remaining 11 were using the eastern type of handgrip. There were seven injuries sustained in the wrist and hand. Due to the relatively small number of wrist injury cases, no statistical correlation could be derived between handgrip use and specific injuries in the upper limb. Conclusion In tennis players with wrist injuries, different grips of the racquet are not related to the anatomical site of the lesion. Previous studies have correlated the type of handgrip with the pattern of wrist injuries. Though we have 219 players in our study, the players who sustained wrist injuries were less (7). Thus, we were unable to find any correlation between type of handgrip and pattern of wrist injuries. Further studies are required so as to understand the biomechanics of tennis injuries. How to cite this article Prabhakar S, Dhillon MS, Meena DS, Dhillon H, Dhillon S. Does Forehand Racquet Handgrip influence Incidence and Type of Wrist Injury in Tennis? A Preliminary Study in Indian Tennis. J Postgrad Med Edu Res 2018;52(1):1-4.

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Oyama, Sakiko, Joseph B. Myers, Craig A. Wassinger, R. Daniel Ricci e Scott M. Lephart. "Asymmetric Resting Scapular Posture in Healthy Overhead Athletes". Journal of Athletic Training 43, n. 6 (1 novembre 2008): 565–70. http://dx.doi.org/10.4085/1062-6050-43.6.565.

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Abstract Context: Observation of the scapular posture is one of the most important components of the physical examination in overhead athletes. Postural asymmetry is typically considered to be associated with injuries. However, asymmetry in the overhead athlete's scapula may be normal due to the dominant use of the limb. Objective: To quantify the differences in resting scapular posture between the dominant and nondominant sides in 3 groups of healthy overhead athletes (baseball pitchers, volleyball players, and tennis players) using an electromagnetic tracking device. Design: Cross-sectional design. Setting: University-based biomechanics laboratory. Patients or Other Participants: A total of 43 players participated, including 15 baseball pitchers, 15 volleyball players, and 13 tennis players. All participants were healthy college-aged men. Intervention(s): Bilateral 3-dimensional scapular kinematics with the arm at rest were measured using an electromagnetic tracking device. Main Outcome Measure(s): Bilateral scapular position and orientation were measured. Between-groups and between-sides differences in each variable were analyzed using separate analyses of variance. Results: In tennis players, the scapula was more protracted on the dominant side than on the nondominant side (P < .05). In all overhead athletes, the dominant-side scapula was more internally rotated (P = .001) and anteriorly tilted (P = .001) than the nondominant-side scapula was. Conclusions: The dominant-side scapula of the overhead athletes was more internally rotated and anteriorly tilted than the nondominant-side scapula. The dominant-side scapula of the tennis players was more protracted than that on the nondominant side. Clinicians evaluating overhead athletes need to recognize that scapular posture asymmetry in unilateral overhead athletes may be normal. Our results emphasize the importance of the baseline evaluation in this population in order to accurately assess pathologic change in bilateral scapular positions and orientations after injury.

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Stiles, Victoria H., e Sharon J. Dixon. "The Influence of Different Playing Surfaces on the Biomechanics of a Tennis Running Forehand Foot Plant". Journal of Applied Biomechanics 22, n. 1 (febbraio 2006): 14–24. http://dx.doi.org/10.1123/jab.22.1.14.

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Research suggests that heightened impacts, altered joint movement patterns, and changes in friction coefficient from the use of artificial surfaces in sport increase the prevalence of overuse injuries. The purposes of this study were to (a) develop procedures to assess a tennis-specific movement, (b) characterize the ground reaction force (GRF) impact phases of the movement, and (c) assess human response during impact with changes in common playing surfaces. In relation to the third purpose it was hypothesized that surfaces with greatest mechanical cushioning would yield lower impact forces (PkFz) and rates of loading. Six shod volunteers performed 8 running forehand trials on each surface condition: baseline, carpet, acrylic, and artificial turf. Force plate (960 Hz) and kinematic data (120 Hz) were collected simultaneously for each trial. Running forehand foot plants are typically characterized by 3 peaks in vertical GRF prior to a foot-off peak. Group mean PkFz was significantly lower and peak braking force was significantly higher on the baseline surface compared with the other three test surfaces (p < 0.05). No significant changes in initial kinematics were found to explain unexpected PkFz results. The baseline surface yielded a significantly higher coefficient of friction compared with the other three test surfaces (p < 0.05). While the hypothesis is rejected, biomechanical analysis has revealed changes in surface type with regard to GRF variables.

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Abrams, Geoffrey D., Alison L. Sheets, Thomas P. Andriacchi e Marc R. Safran. "Review of tennis serve motion analysis and the biomechanics of three serve types with implications for injury". Sports Biomechanics 10, n. 4 (novembre 2011): 378–90. http://dx.doi.org/10.1080/14763141.2011.629302.

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Iordan, Daniel-Andrei, Mircea-Dan Mocanu e Claudiu Mereuta. "Topspin’s Influence on the Spine in Female Juniors III in Table Tennis". BRAIN. BROAD RESEARCH IN ARTIFICIAL INTELLIGENCE AND NEUROSCIENCE 11, n. 4Sup1 (28 dicembre 2020): 125–43. http://dx.doi.org/10.18662/brain/11.4sup1/160.

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The consolidation of topsin, the most prolific technical & tactical element in the attack’s area, requires, besides the daily training and efficient biomechanics, an optimal health of the osteo-articular and muscular system, due to the fact that the performance of this element requires forceful speed developed throughout the muscle chain. The purpose of the present scientific research is to identify the problems occurred at spine level resulted following to topspin attack and the importance of this technical element in the female junior’s performance. The social enquiry-based survey was conducted on a number of 27 coaches and athletes, using a number of 15 questions. Objectives: optimization of topspin attack in 11-12 years old female juniors. Premises: the knowledge on statistics of spine specific areas generating pain at the time of the attack will allow us to create a postural correction program meant to optimize performance. Research methods: The registration method was based on an opinion poll, on a statistical and mathematical method, on computer graphics method. Conclusion: around 78% of the interviewed specialists consider that the lumbar area is the most affected and predisposed to pain in case of topspin, existing a strong correlation between it and the technical element considered to be the most important in the attack phase (topspin – 66.67%) in female juniors, p = 0.003 < α = 0.05, V = 0.620 and C = 0.659.

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Iordan, Daniel-Andrei, Mircea-Dan Mocanu e Claudiu Mereuta. "Topspin’s Influence on the Spine in Female Juniors III in Table Tennis". BRAIN. BROAD RESEARCH IN ARTIFICIAL INTELLIGENCE AND NEUROSCIENCE 11, n. 4Sup1 (28 dicembre 2020): 125–43. http://dx.doi.org/10.18662/brain/11.4sup1/160.

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Abstract (sommario):

The consolidation of topsin, the most prolific technical & tactical element in the attack’s area, requires, besides the daily training and efficient biomechanics, an optimal health of the osteo-articular and muscular system, due to the fact that the performance of this element requires forceful speed developed throughout the muscle chain. The purpose of the present scientific research is to identify the problems occurred at spine level resulted following to topspin attack and the importance of this technical element in the female junior’s performance. The social enquiry-based survey was conducted on a number of 27 coaches and athletes, using a number of 15 questions. Objectives: optimization of topspin attack in 11-12 years old female juniors. Premises: the knowledge on statistics of spine specific areas generating pain at the time of the attack will allow us to create a postural correction program meant to optimize performance. Research methods: The registration method was based on an opinion poll, on a statistical and mathematical method, on computer graphics method. Conclusion: around 78% of the interviewed specialists consider that the lumbar area is the most affected and predisposed to pain in case of topspin, existing a strong correlation between it and the technical element considered to be the most important in the attack phase (topspin – 66.67%) in female juniors, p = 0.003 < α = 0.05, V = 0.620 and C = 0.659.

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Deghaies, Kaies, Caroline Martin, Pierre Touzard, Cyril Brechbuhl, Jean Marc Duboscq, Thibault Lussiana e Cyrille Gindre. "The effect of natural preferences on serving biomechanics: a new approach to the motor skills of tennis players". ITF Coaching & Sport Science Review 29, n. 84 (31 agosto 2021): 15–17. http://dx.doi.org/10.52383/itfcoaching.v29i84.201.

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Research has demonstrated the existence of two 'natural preference' profiles in running. The objective of this study was to determine the influence of the natural preferences of ground (with a "posterior and flexion" movement) and air (with an "anterior and extension" movement) on the ball speed and impact position during the service of 19 professional players. The results allow to propose a new reading grid of the service technique to consider the preferential motricity of each player while respecting the biomechanical principles

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Xie, Xia. "Analysis of the Movement Track of Top Spinning Ball and Biomechanics in the Process of Hitting Tennis Ball". Molecular & Cellular Biomechanics 18, n. 3 (2021): 147–56. http://dx.doi.org/10.32604/mcb.2021.016246.

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33

Mohammed Saeed, Bilal. "Comparison between some of the variables of biomechanics using forehand (the forward and top spin) for advanced tennis players". Humanities Journal of University of Zakho 2, n. 2 (30 dicembre 2014): 272–82. http://dx.doi.org/10.26436/2014.2.2.293.

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Chimes, Gary P., Todd P. Stitik, David L. Tung e Patrick M. Foye. "POSTER BOARD T4: BIOMECHANICS CAUSING A RAQUET: EXTENSOR CARPI ULNARIS OVERUSE SYNDROME IN A TENNIS PLAYER: A CASE REPORT". American Journal of Physical Medicine & Rehabilitation 85, n. 3 (marzo 2006): 255. http://dx.doi.org/10.1097/00002060-200603000-00038.

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35

Herbaut, Alexis, Emilie Simoneau-Buessinger, Franck Barbier, Christophe Gillet, Maxime Roux, Nils Guéguen e Pascale Chavet. "Shoe drop reduction influences the lower limb biomechanics of children tennis players during an open stance forehand: A longitudinal study". European Journal of Sport Science 17, n. 10 (30 agosto 2017): 1261–69. http://dx.doi.org/10.1080/17461391.2017.1368719.

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Yu, Changxiao, Shirui Shao, Julien S. Baker e Yaodong Gu. "Comparing the biomechanical characteristics between squat and standing serves in female table tennis athletes". PeerJ 6 (1 giugno 2018): e4760. http://dx.doi.org/10.7717/peerj.4760.

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Abstract (sommario):

Background The table tennis serve involves complex spatial movements combined with biomechanial characteristics. Although the differences in lower-limb biomechanial characteristics to a great extent influence the translational and spinning velocity of the ball when using the different styles of table tennis serve, few researchers have studied their mechanics. Therefore, the aim of this study was to investigate the differences in lower-limb activity between the squat and standing serves during a table tennis short serve. Methods Ten advanced female table tennis participants performed a squat serve and standing serve in random order. A Vicon motion analysis system and a Novel Pedar insole plantar pressure measurement system were used to record kinematics and kinetics data, respectively. Results Key findings from the study were that the squat serve not only showed significantly larger hip and knee flexion, as well as ankle dorsiflexion, it also showed significantly larger hip adduction and external knee rotation, with larger changing angular rate of the lower limb joints in the sagittal and the transverse planes when the two serving styles were compared. In addition, the force-time integral (FTI) was higher in the rear foot area for the standing serve. Discussion The results demonstrated that the squat serve needs higher lower limb drive during a table tennis short serve compared with a standing serve. These biomechanical considerations may be beneficial for table tennis athletes and coaches as a method of optimizing performance characteristics during both competition and training.

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Klich, Sebastian, Bogdan Pietraszewski, Matteo Zago, Manuela Galli, Nicola Lovecchio e Adam Kawczyński. "Ultrasonographic and Myotonometric Evaluation of the Shoulder Girdle After an Isokinetic Muscle Fatigue Protocol". Journal of Sport Rehabilitation 29, n. 8 (1 novembre 2020): 1047–52. http://dx.doi.org/10.1123/jsr.2019-0117.

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Objectives: The aim of the study was to investigate supraspinatus tendon thickness, acromiohumeral distance (AHD), and stiffness/creep measures of the shoulder girdle in overhead asymptomatic athletes in muscle fatigue conditions. Design: Observational, case series study. Setting: Biomechanics and motion analysis lab. Participants: Twenty-four male overhead volleyball (n = 8), handball (n = 8), and tennis (n = 8) athletes. All subjects were without shoulder injury history. Main Outcome Measure: The subjects were tested for supraspinatus tendon thickness (in short and long axis), AHD using ultrasound scans and stiffness/creep of upper trapezius, infraspinatus, anterior and posterior deltoid, and pectoralis major using the myotonometer device before and immediately after a fatigue protocol. Intervention: The fatigue protocol consisted of 3 sets of 32 maximum isokinetic concentric contractions performing shoulder internal and external rotation at isokinetic speed of 120°/s. Results: A significant increase in supraspinatus tendon thickness (both in short and long axis) (P = .045 and P = .01, respectively) and a reduction in AHD (P = .01) were found after an isokinetic protocol. The stiffness increased significantly in upper trapezius (P ≤ .01), infraspinatus (P = .003), posterior deltoid (P = .047), and pectoralis major (P = .01), whereas the creep showed a significant decrement for upper trapezius (P = .001) and infraspinatus (P = .003). Conclusion: The present study has demonstrated the postexercise fatigue in overhead athletes. The increase of stiffness (reduction of muscle creep) and tendon thickness (simultaneous to the reduction of AHD) may indicate rotator cuff overloading as a primary intrinsic tendon pathology process.

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Hatze, Herbert. "Objective Biomechanical Determination of Tennis Racket Properties". International Journal of Sport Biomechanics 8, n. 4 (novembre 1992): 275–87. http://dx.doi.org/10.1123/ijsb.8.4.275.

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Abstract (sommario):

Several biodynamical properties of tennis rackets such as vibrational characteristics, direction control, and the coefficient of restitution depend critically on the constraining mode of the handle. The racket response to ball impact differs fundamentally for rigid mechanical clamping of the handle and for hand-held gripping. In order to test objectively the biodynamical characteristics of tennis rackets under standardized but biomechanically realistic conditions, the use of a mechano-electronic replica of the human hand/arm system, termed manusimulator, is suggested. Sample test results of the vibrational characteristics of a specific tennis racket and of the coefficients of restitution of several rackets provide proof of the reproducibility and reliability of the test results so obtained. The results were compared with those obtained using human test players. The latter subjective method yielded data with excessively large coefficients of variation around 84% and was found to be unsuitable for determining tennis racket properties objectively. It is concluded that the standardizable manusimulator testing procedure offers a valuable alternative to subjective testing methods for determining tennis racket parameters.

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Fernández López, Manuel. "Research on the specific movement of the head in tennis strokes". ITF Coaching & Sport Science Review 28, n. 80 (30 aprile 2020): 16–19. http://dx.doi.org/10.52383/itfcoaching.v28i80.63.

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Technique is one of the aspects that has the most relevant influence on tennis player performance. Searching for more efficient and effective technique, by means of the application of biomechanical laws, is a constant among coaches and researchers. This article deals with a very concrete subject in tennis technique: the position of the head during the impact phase of tennis strokes. Biomechanical aspects of the strokes will also be considered, as well as other relevant aspects such as fixing the gaze during the stroke and the stretching-shortening cycle.

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Steiner, Charles, e Peter Schnatz. "Tennis elbow: A biomechanical and therapeutic approach". Journal of the American Osteopathic Association 93, n. 7 (1 luglio 1993): 778. http://dx.doi.org/10.7556/jaoa.1993.93.7.778.

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41

Luethi, Simon M., Edward C. Frederick, Michael R. Hawes e Benno M. Nigg. "Influence of Shoe Construction on Lower Extremity Kinematics and Load during Lateral Movements in Tennis". International Journal of Sport Biomechanics 2, n. 3 (agosto 1986): 166–74. http://dx.doi.org/10.1123/ijsb.2.3.166.

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Abstract (sommario):

The purpose of this study was to analyze the influence of footwear on the kinematics and the mechanical load on the lower extremities during fast lateral movements in tennis. The method used was a prospective study. Two types of tennis shoes were randomly distributed among 229 tennis players. The subjects were measured before starting a 3-month test period. The study showed that the kinematics of the lower extremities and internal load conditions during fast lateral movements in tennis are highly influenced by the type of shoe worn. The results further suggest that a prospective biomechanical analysis can be used to establish assumptions concerning the etiology of pain and injuries in sports related activities.

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Ben Kibler, W. "Biomechanical Analysis of the Shoulder During Tennis Activities". Clinics in Sports Medicine 14, n. 1 (gennaio 1995): 79–85. http://dx.doi.org/10.1016/s0278-5919(20)30259-3.

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Adamović, Katarina, Arso Vukićević, Radun Vulović, Smiljana Đorović, Radivoje Radaković, Gordana Jovičić e Nenad Filipović. "Assessment of a knee resistance by applying the computational methods". Fizicka kultura 74, n. 1 (2020): 57–64. http://dx.doi.org/10.5937/fizkul2001057a.

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Abstract (sommario):

In tennis, the complex serving motions produce high mechanical stresses on player's musculoskeletal, tendon and ligament joints. In this paper, different cognitive methods have been integrated in order to non-invasively assess the knee's bone and cartilage resistance at the maximum power tennis serve. The proposed methodology is based on the creation of patientspecific biomechanical model, as well as on the tracking the knee's kinematics, ground force measurement, inverse dynamics modelling and analysis of the knee using the Finite Element Method with aim to assess the knee resistance of a tennis player, considering acute deformations and potential injuries. The main objective of this paper is development of the optimised computational technology and creation of practical diagnostic tool for non-invasive assessment of the knee function during specific moves and motions in tennis. It is expected that this approach can provide prediction and injury prevention in training and competitive tennis to a significant extent.

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BONDARENKO, KONSTANTIN K., e Anastasiya D. Lebed. "KINEMATIC PARAMETERS OF NODES IN TENNIS SERVE". Medicine and Physical Education: Science and Practice, n. 8 (2020): 77–83. http://dx.doi.org/10.20310/2658-7688-2020-2-4(8)-77-83.

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Modern sports make high requirements for the implementation of technical elements of the movement. Evaluation of shock actions when serving in big tennis allows you to model the technical training of athletes. The purpose of the article is to determine the kinematic parameters of the movement of body links when performing a pitch in tennis. To perform a motion analysis, we used a knot position method to determine the structural elements of the motion. Depending on the pedagogical tasks, we revealed the main characteristics of the movement using nodes. We determined angular deviations from anatomical positions in joints, between body links performing efficiency of performed action. We revealed the most rational ranges of angular positions between segments of the body. Analysis of biomechanical parameters of movement allows to determine rational trajectories of movement of body links, which makes it possible to select the most effective serving and special exercises aimed at formation of the most effective motor actions and reduction of tension during movement in the player's joints and skeletal muscles. These biomechanical data can then be useful to improve the organization and planning of the training process of tennis players. Knowledge of the range of angular movements and the nature of the change in relative body links helps to reduce joint injuries when serving in tennis.

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Hunfalvay, Melissa, e Nicholas Murray. "The Effect of Prior Tennis Experience on Wheelchair Tennis Players’ Visual Search". Adapted Physical Activity Quarterly 35, n. 4 (1 ottobre 2018): 329–41. http://dx.doi.org/10.1123/apaq.2017-0117.

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Abstract (sommario):

The purpose of this study was to examine whether prior biped tennis playing experience results in different visual search strategies compared with no prior biped playing experience. A total of 32 wheelchair (WC) tennis players, 17 males and 15 females, ranked between 1 and 16 on the International Tennis Federation rankings participated in this study. Half the players had prior experience playing tennis as a biped player, and half had no prior experience in biped tennis. The athletes viewed 18 different serves from an expert WC player while their gaze was monitored using eye tracking. Results revealed significant differences between the groups in fixation duration and number of fixations. Differences were also found in fixation locations and durations across biomechanical phases of the serve. The WC only players had more fixations for shorter periods than did WC with biped players in the ritual phase. In the preparatory and execution phases, however, the WC only players had fewer fixations for longer duration than the WC with biped players. Results are discussed in terms of long-term memory structures, learning, and considerations when coaching and training WC tennis players.

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MURATA, Munenori, e Norihisa FUJII. "Biomechanical Analysis for Control of Ball Spin in a Tennis Serve, Focusing on the Lower Limbs and Trunk". Biomechanisms 22 (2014): 155–66. http://dx.doi.org/10.3951/biomechanisms.22.155.

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Zemková, Erika, José Muyor e Michal Jeleň. "Association of Trunk Rotational Velocity with Spine Mobility and Curvatures in Para Table Tennis Players". International Journal of Sports Medicine 39, n. 14 (16 novembre 2018): 1055–62. http://dx.doi.org/10.1055/a-0752-4224.

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Abstract (sommario):

AbstractThis study investigates the relationship of trunk rotational velocity with mobility and curvature of the spine in wheelchair table tennis players. Eleven para table tennis players and 13 able-bodied athletes performed 5 seated trunk rotations to each side with 1 kg barbell placed on the shoulders. Trunk rotational velocity and respective angular displacement were significantly lower in para table tennis players compared to able-bodied athletes. Both groups showed similar values of thoracic kyphosis. However, para table tennis players exhibited lower lumbar inversion and pelvic retroversion compared to able-bodied athletes. Peak and mean velocity in the acceleration phase of trunk rotation correlated with angular displacement in both para table tennis players (r=0.912, p=0.001; r=0.819, p=0.013) and able-bodied athletes (r=0.790, p=0.026; r=0.673, p=0.032). These velocity values were also associated with lumbar curvature (r=-0.787, p=0.003; r=− 0.713, p=0.009) and pelvic tilt angle (r=0.694, p=0.014; r=0.746, p=0.007) in para table tennis players. Findings indicate that slower velocity of trunk rotations in para table tennis players might be due to their limited range of trunk rotational motion. Decreased posterior concavity could also contribute to these lower values. However, other biomechanical factors may have an impact on the association between these variables and have yet to be documented.

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Amaro, Ana M., Maria F. Paulino, Maria A. Neto e Luis Roseiro. "Hand-Arm Vibration Assessment and Changes in the Thermal Map of the Skin in Tennis Athletes during the Service". International Journal of Environmental Research and Public Health 16, n. 24 (14 dicembre 2019): 5117. http://dx.doi.org/10.3390/ijerph16245117.

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Abstract (sommario):

During recent years the number of tennis athletes has increased significantly. When playing tennis, the human body is exposed to many situations which can lead to human injuries, such as the so-called tennis elbow (lateral epicondylitis). In this work a biomechanical analysis of tennis athletes, particularly during the service, was performed, considering three different types of over-grip and the presence of one anti-vibrator device. One part of the study evaluates the exposure to hand-arm vibration of the athlete, based on the European Directive 2002/44/EC concerning the minimum health and safety requirements, regarding the exposure of workers to risks from physical agents. The second part of the study considers an infrared thermography analysis in order to identify signs of risk of injury, particularly tennis elbow, one of the most common injuries in this sport. The results show that the presence of the anti-vibrator influences the vibration values greatly in the case of athletes with more experience and also for athletes with less performance. The presence of the Cork and/or Tourna on the racket grip does not have any significant effect on the hand-arm vibration (HAV), similarly in the case of athletes with the best performance and athletes with less technique. The results indicated that the infrared thermography technique may be used to identify the risk of injuries in tennis players.

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Roanes-Lozano, Eugenio, Eduardo A. Casella, Fernando Sánchez e Antonio Hernando. "Diagnosis in Tennis Serving Technique". Algorithms 13, n. 5 (25 aprile 2020): 106. http://dx.doi.org/10.3390/a13050106.

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Abstract (sommario):

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).

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Suárez, David, e Josep Campos Rius. "The specific nature of endurance training in tennis". ITF Coaching & Sport Science Review 24, n. 68 (30 aprile 2016): 10–13. http://dx.doi.org/10.52383/itfcoaching.v24i68.171.

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Abstract (sommario):

The type of endurance training in tennis will be more or less specific depending on the different biomechanical and motor actions and tactical situations, both, at the time of execution of the stroke and during the different on-court movements. However, the dynamics of the change of direction and rhythm are also fundamental. More often than not, the presence of accelerations and decelerations in sprints and stops will be a differential factor for speed and endurance in tennis. We can, thus, easily infer that a load could be very specific in a certain context and not in another one.

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