Karate Sports Research Articles

THE IMPACT OF CERTAIN ANTHROPOMETRIC DIMENSIONS ON THE REALIZATION OF MOTOR ABILITIES IN KARATE ATHLETES

The research was conducted on 37 senior karate athletes’ seniors, males, at the age of 18 to 30, competitors of international rank. They are potential members of the Kosovo national team. Two test batteries were used on the sample of the respondents: 5 anthropometric variables as a predictor system and 13 basic motor variables as a criterion system. From previous studies it can be concluded that the longitudinal dimensionality of the skeleton and motor abilities, in particular, speed, explosive force, as well as coordination of movement play an important role in karate sport, especially for the competitors who participate in the discipline kumite. The research was conducted in order to determine the impact of the predictor system of variables on the success of the realization of the criterion variables. By applying Linear Regression Analysis, the connection of the predictors with certain motor tests was determined, i.e. their prediction was determined. Key words: Karate, Anthropometric, Motor.

RETRACTED: Image recognition of martial arts movements based on FPGA and image processing

The work is to perceive the intricate karate activity groupings consequently. It is to give a proportion of the nature of the activity performed. This is because there is a problem that requires essentially model. This work can be removed from the two motion capture hardware and consumer derived from the input sequence. The solution for the skeleton's movement proposed a depth-sensing system. The speed of the body's action because there is a karate sport classification.On the other hand, because the practice with even skilled martial arts for years, behavior patterns are repetitive. Similarly, there is no interest in the commercial market for solutions used in today's computer entertainment and tutoring system. The future of collecting analysis of elements present in the correct posture, accelerated by a punch and kick, the different aspects of performance, such as synchronizing the limb's movement and evaluation. This work aims to provide a survey to evaluate the quality of the whole body movement technology. It proposes a data set and its plan to implement the first reference file of the work's future. Generally speaking, FPGA is programmable with a group of programmable interconnect resources through digital circuits or programmable logic blocks surrounded by input/output blocks. Any system silicon chip is put together. The processor and the FPGA are essentially indeed parallel.

PMRI-Based Teaching Materials Using the Context of Karate Sports in Elementary School Students during the COVID-19 Pandemic

The COVID-19 Pandemic has brought many obstacles for education in Indonesia. The learning process moves from school to learning at home. To increase students' interest in learning mathematics during the COVID-19 pandemic, it is necessary to design new innovations such as the use of the context of karate in mathematics learning. This study aims to develop learning materials using the context of karate based on Indonesian Realistic Mathematics Education with the topic arithmetic operations. This research is a development research using Plomp model. Three stages are used in the development of the Plomp model: 1) Initial research stage; 2) Prototype stage; 3) Assessment stage. In the initial stages, researchers conducted the data collection and gathered information through observation. In the second stage, the researcher designed the product and evaluated their validity through the expert team. In third stage, the researchers made a revision based on evaluation from the expert team and redo the validation assessment until the expert team states the product is valid for use in learning. Lesson plan of modules, teaching materials, and learning videos are stated valid with an average value of three validators 73.

Psycho-Physiological Aspects in Karate Sports Preparation

In the study, we tried to point out, on the basis of comparison conclusions of several research works, how much the psycho-physiological aspects contribute to influencing the conception of sport preparation in terms of the philosophical context of preparation in traditional martial arts. We elucidated the perception of the difference between martial arts and combat sports and emphasized the psychological dimension of training in sports karate in relation to physical training. At the same time, we were looking for relationships that would give us an answer as to which of these aspects are more effective in terms of sports performance. In conclusion, on the basis of a comprehensive content analysis of the findings, we draw attention to the fact that only the mutual correlation of both selected aspects can achieve the desired results in the training of karate practitioners.

Prevalence of Injury Pattern among Karate Players in Delhi-National Capital Region- A Cross-sectional Survey

Introduction: With increasing participation in karate over the past 20 years, many injuries are reported in karate sports. Although many articles and studies regarding injuries in Karate have been published till now, there is lack of studies in the Indian context, to specifically evaluate and document the injury patterns in karate players. Aim: To identify the prevalence, onset of injury, mechanism, and pattern of injury in aspiring national and international level karate players. Materials and Methods: This cross-sectional study was conducted on the karate players of Delhi NCR (National Capital Region) during December 2018 to February 2019. The survey was conducted on 204 karate players (132 male and 72 female karate players). Data was obtained by one on one methods of the interview using a self administered and close ended questionnaire in various karate academies. Karate players included were in the age group between 15-25 years and aspiring for national and international level with a minimum of 2 years of experience of playing. Recreational and novice players were excluded from the study. Data was analysed by using Statistical Package for Social Sciences version 20 (SPSS). Results: Out of 204 karate players, 84 (41.2%) karate players were found to be injured at the time of the study and 90 (44.12%) players had injuries in the past 24 months. According to the location of the injury, head and face constituted the most injured body part (28.58%) followed by lower limb and upper limb. The onset of injury was found to be sudden in 57.15% of injuries and gradual in 35.71% of injuries and 65.48% injuries occurred due to direct contact mechanism due to punches and kicks. Conclusion: The current study revealed that karate was associated with a high injury rate. In karate the head and face were found to be injured the most followed by the lower limb and upper limb. More epidemiological studies are needed to understand mechanism or location of injuries during training and compare them to those injuries which are sustained in competition only.

Karate's ambiguity: Traditional martial art or modern combat sport

After a radical conversion of the old Okinawan, anti-samurai martial art toti in the 1920s, a new, in effect Japanese modern combat sport, karate, came into being. The very first karate sports contest already took place in 1930. But, at the end of 1950s, karate started to be exported to the Western world as a traditional martial art of Japanese samurai, even if the samurai had not known karate. That then already omnipresent doctrine has allowed no other perception despite the fact that, globally, the prevalent phenomenon in the field has been karate sports contests in bouts and katas. Exposing the concept of karate as a traditional martial art to be an unhistoric, artificial ideological superstructure, this study is based on more than 50 years of accumulated scepticism of the author that has been confirmed through communication with students of various karate styles and the evaluation of several publications and studies. It is hoped that the findings of this basic study will encourage the sports scientific community to favor further research directed to indisputable and unambiguous explanation of karate.

Avulsion Fracture in Distal Phalanx of Left Great Toe: A Rare Unnoticed Karate Sports Injury

Great toe injury is common in athletes. Besides violence, the sports injuries to the great toe vary according to the sharing force or impact. However, some great toe injuries can seriously affect the daily activities and some could also remain unnoticed. This case report documents an athlete with an unnoticed avulsion fracture of distal phalanx of the left great toe during karate practice on regular mat. J Curr Surg. 2019;9(1):6-8 doi: https://doi.org/10.14740/jcs372

Analisa Tingkat Prestasi Atlet Karate Sumatera Barat Menggunakan Algoritma Data Mining

The Karate sport is a kind of sport that is quite popular today. All regions in Indonesia are racing to improve the performance of their karate athletes. Various developments were carried out to be able to improve karate sports achievements. This research will later be used as a benchmark for developing and realizing good sports performance, especially in the karate by using the concept of data mining. To apply the concept of Data Mining, one way that can be done is to implement the C4.5 algorithm. C4.5 algorithm or also called decision tree algorithm, is a very strong and well-known classification and prediction method. The application of the concept of data mining with C4.5 algorithm is done by analyzing what factors support the achievement of karate sports. After that, the C4.5 algorithm is calculated to find out what is the most decisive factor in the development of karate sports achievements. This aims to maximize the role of these achievement supporting factors. The results of this study are expected to provide great benefits for the development and improvement of the achievements of karate athletes in West Sumatra.

The Effect of the Mind Concentration / Relaxation of Body and Soul (Recovery) in Karate Sports Students after a Session of Karate Practice in Gorgan

The Effect of the Mind Concentration / Relaxation of Body and Soul (Recovery) in Karate Sports Students after a Session of Karate Practice in Gorgan

Physiological and Biomechanical Fatigue Responses in Karate: A Case Study

Knowledge of the fatigue process in karate sport is essential to improve the performance of top athletes. The physiological and biomechanical behavior during the Karate Specific Aerobic Test (KSAT) fatigue protocol in karate was investigated. PCR, lactate, glucose and cortisol were collected before and after the fatigue protocol application in karate, besides that, and heart rate and technical speed were measured. The results indicated increase in C protein reactive (60%), creatine kinase (25%), cortisol (30%), lactate dehydrogenase (90.9%) and decrease in glucose (21.2%). The maximum speed was: in kizami zuki, 5.75 ± 0.31 m/s; in mawashi geri, 9.0 ± 0.24 m/s, in gyako zuki, 7.23 ± 0.54 m/s and in kizami mawashi geri, 6 ± 0.34 m/s. The mean time for each set was 2.99 ± 0.17 s. There was reduction in speed and duration of set for all techniques, especially in the final sets (p<0.05), indicating the presence of fatigue. Gyako zuki was the main blow affected by the phenomenon (p<0.05). Also, the high values observed in biochemical variables after the protocol application indicate metabolic fatigue with muscle damage. Therefore, the athlete adapted his motor behavior in order to hold his technical speed.

Contribution rates of some aspects of attention in the decisions of kata judges in karate sport

Contribution rates of some aspects of attention in the decisions of kata judges in karate sport

Contribution rates of some aspects of attention in the decisions of kata judges in karate sport

Contribution rates of some aspects of attention in the decisions of kata judges in karate sport

The Effect of Bybee Method Applying for Structural Learning on Karate Sport Skills

According to many learning theories based on the philosophy of knowledge building and information including a structural learning method of Bybee who used constructive philosophy which emphasizes learning based on understanding through intellectual engagement of learners and learner acquisition of knowledge depending on experiences. This method based on a set of assumptions that learning new knowledge-building process through learner mental effort to reach discovery knowledge himself in light of expectations by a certain assumptions to solve problems depending on themselves.

Injuries in Karate Sports: A Survey Performed During the World Championship 2014

Background: In literature, the competitive sport of modern karate is almost always characterised as a combat sport involving injuries caused by impact effects and physical contact with opponents. There is a lack of data regarding the outcome after karate injuries, specifically with a view to the contact-free Kata karate. Methods: Performing a random test using a questionnaire, we collected data concerning regular medical treatment, prior surgeries of the locomotor system, and medical care. This study included 300 athletes from 65 countries (average age: 24.1 years; 176 male, 124 female) participating in the Karate World Cup 2014. Seven participants competed in both disciplines, 87 only in the Kata discipline, and 206 only in Kumite (the discipline involving physical contact with opponents). The statistical analysis was performed using a two-sided Chi-square test and the Fisher's exact test. Results: Recurrent medical treatment was most commonly required for the knee region (Kata 28.7 %, Kumite 26.7 %). In Kata the shoulder region came second (22.9 %), in Kumite the ankle region (21.8 %), followed by hand and foot in both groups. Medical treatment of the elbow area was more frequent in the Kata Group (p = 0.033), while in Kumite athletes' hand (p = 0.002) and foot injuries (p = 0.007) prevailed. Prior surgeries of athletes ofboth disciplines most commonly concerned the knee, followed by the ankle region in the Kata group and by the hand and head region in the Kumite group. Statistically significant differences between the two disciplines were found in head injuries (p = 0.004), which commonly do not occur in the Kata discipline. During the World Cup, 56.0 % of the athletes had no individual medical care and 24.6 % received no sports-related medical care in their home countries. Conclusion: Although the risk of injuries in Kumite Karate has been reduced by the introduction of gumshields, hand and foot protectors as well as a reform of the scoring system, the potential for chronic physical damage should not be underestimated. Since in athletes competing in the Kata discipline the rate of surgeries and injuries is only slightly lower than in the Kumite group, Kumite Karate may be regarded as a martial arts competitive sport with a relatively low risk of injuries. In contrast, the risk of chronic musculoskeletal damage in Kata athletes seems to be underestimated thus far. Suggested improvements concern the training techniques and conditions (i. e. the tatami material), and there isa need for regular medical care, including preventative care, tobe provided for these athletes.

VALIDITY, RELIABILITY AND SENSITIVITY OF THE TEST STROKE WITH LEG MAE GERI

SUMMARY Specific motor abilities in modern sport are probably the determining factor for solving sports tasks and achieving sport success. Strockes with an arm and leg in karate sport are dominant techniques which help a karate athlete to score points or win a fight. Karate sport and particularly sports discipline fight (kumite) is characterized with poly structural movements, and the most important motor skills are explosiveness, speed and coordination. The subject of this research derives from the previous knowledge and arguments and it is directed toward determination of the measuring characteristics (reliability, sensitivity and validity) of the specific “Mae Geri” motor test. The research has been conducted in the Republic of Macedonia with an intentional sample of 30 male examinees (karate athletes), at the age older then 18. During the research with the sample of examinees, 1 (one) manifest specific-motor variable (newly constructed composite test) was applied, characteristic for the karate sport. The aim of this research was to determine the measuring characteristics of the newly constructed test. Using the Hoteling method, the factor validity of this test was determined, as well as its latent dimensions, and the main component according to Kaiser-Gutman criterion were established. Based on the obtained results of the research, there have been some conclusions which refer to the measuring characteristics of the applied test, and primarily to the factor validity, sensitivity and reliability of the same.

Contribution to the study of religious and philosophical basis of the far east martial arts

Chinese Martial Arts (popularly known as Kung-fu) owe much to other segments of Chinese culture. In order to fully comprehend the influence of China's martial arts system on the development of modern karate, originated in Okinawa, there is a need for getting more information about the cultural heritage that had the greatest influence on the formation and development of the martial arts system in China itself. Here, we primarily think about the influence of religion (Taoism, Confucianism, and Buddhism) and their relationship to the body and corporeality in the context of culture. Viewed through the prism of this religious framework, a body and body training in China becomes a way of affirming the integrity of human existence and a positive aspect of integrating a man with his environment; the body becomes a place in which that culture writes its ideas by making it the centre of the universe and a part of the natural harmony at the same time. All this has reflected immensely on Okinawan reception of Chinese skills, and later on formation of the modern karate sport phenomenon, and many ancient Chinese concepts have survived this many centuries long transformation and modernization. The aim of this paper shall be to demonstrate the possible surviving artifacts and influences of Chinese martial arts on modern karate sport.