Evaluation of Reaction Time on Karate Athletes UKM Syiah Kuala University

The purpose of the study. Reaction time is a determining factor in sports, especially in martial arts. The purpose of this study is to evaluate the reaction time of UKM Karate athletes at Syiah Kuala University. Materials and methods. The approach in this study uses a quantitative approach. The sampling technique used purposive sampling, which means this technique is used to achieve certain goals. The samples in this study were athletes from UKM karate at Syiah Kuala University. The data collection technique was carried out by using the whole body reaction test to measure the reaction time of the athlete's arms and legs. Results. results of the research in the form of a whole body reaction test, the results using the formula for the average value and the total percentage can be concluded: (1) The arm reaction time test with the total average value for male athletes is 0.169 seconds and female athletes are 0.173, and the highest percentage is in the very good category, amounting to 87% for male and female athletes, 75% in the very good category and (2) the limb reaction time test has an average value of 0.269 seconds for male athletes and female athletes of 0.361 seconds, with the highest percentage value amounted to 100% in the good category for male athletes and for female athletes it was in the sufficient category with a percentage of 50%. Conclusions. the analysis show that most athletes have been able to maintain and increase reaction time well, to be able to improve and maintain it, regular and continuous training is needed

The Influence of Sport Practices on Body Composition, Maturation and Maximum Oxygen uptake in children and youth (La influencia de las prácticas deportivas en la composición corporal, la maduración y la absorción máxima de oxígeno en niños y jóvenes)

Systematic sport practice at younger ages positively influences body composition and maximum oxygen uptake (VO2max). On the other hand, its influence on maturation is still not consensual, and some studies claim a negative effect. Few studies have approached the differences in this influence according to different sport practices. The present study aims to analyse and compare the influence of karate and swimming practices, and the non-practice of sports, on body composition, VO2max and maturation in children and youth. Data were collected in 126 youth, 54 karate athletes, 36 swimming athletes and 36 participants with no sport practice (M=11.56±2.06 years). The type of sport practice had a different influence on body composition and VO2max, no negative influence was verified on maturation. In general, the sport practices revealed a positive influence in children and youth’s body composition. The karate practice provided significant lower body fat mass and higher lean mass in males. Swimming athletes revealed a significant higher VO2max compared to all other groups, while karate didn´t differed from no-practice group. The different influence of sport practices verified highlighted the importance of a multilateral development of children and youth by practising several sports. Resumen: La práctica deportiva sistemática a edades más tempranas influye positivamente en la composición corporal y la absorción máxima de oxígeno (VO2max). Por otro lado, su influencia en la maduración aún no es consensuada, y algunos estudios afirman un efecto negativo. Pocos estudios se han acercado a las diferencias en esta influencia según las distintas prácticas deportivas. El presente estudio tiene como objetivo analizar y comparar la influencia de las prácticas de kárate y natación, y la no práctica de deportes, sobre la composición corporal, el VO2máx y la maduración en niños y jóvenes. Los datos fueron recolectados en 126 jóvenes, 54 atletas de kárate, 36 atletas de natación y 36 participantes sin práctica deportiva (M = 11.56 ± 2.06 años). El tipo de práctica deportiva influyó de manera diferente en la composición corporal y el VO2max, no se verificó influencia negativa en la maduración. En general, las prácticas deportivas revelaron una influencia positiva en la composición corporal de niños y jóvenes. La práctica del karate proporcionó una masa grasa corporal significativamente más baja y una masa magra más alta en los hombres. Los atletas de natación revelaron un VO2max significativamente más alto en comparación con todos los demás grupos, mientras que el karate no difirió del grupo sin práctica. La diferente influencia de las prácticas deportivas verificada resaltó la importancia de un desarrollo multilateral de la niñez y la juventud a través de la práctica de varios deportes.

The Effect of Training Program Using Electronic Style and In Field During Covid-19 on The Development of Some Physical Traits in Karate Athlete

The research aimed at designing a training program using electronic and in-field training to identify the differences between tests for both groups. In addition to that, it aimed at identifying the differences between posttests for both groups under study. Karate athletes from Karate Improvement Organization in Sulyamania governorate. The researchers used the experimental method on (12) athletes to conclude that electronic learning group has developed in some physical abilities understudy compared to pretest in favor of the posttests. The electronic style used by the experimental group highly affected the psychological, functional, and emotional aspects of athletes during COVID 19. In addition to that, the results showed that using both electronic and in-field training has a positive effect on developing special physical abilities.

Somatotype Profiles of Montenegrin Karatekas: An Observational Study

Competitive karate activity involves numerous factors affecting performance in sport. Physical structure and somatotype is considered to be one of them. This study aimed to determine whether there are differences between karate athletes in five male and five female official weight categories in different anthropometric measurements and to determine the somatotype profiles of athletes divided by weight categories. This study consisted of a total of 27 male karate athletes (21.88 ± 4.66 years) and 24 female karate athletes (20.29 ± 3.14 years). Measurements were taken in April 2020. Athletes are classified into official weight categories according to World Karate Federation rules. Somatotypes were calculated using anthropometry. One-way analysis of variance and Tukey’s post hoc tests were used for statistical analysis to compare group differences regarding weight categories. Anthropometric parameters were highest in the heaviest categories compared to lighter categories. All male subjects were endomorphic mesomorph, except for category <84 kg, which was endomorphic ectomorphs. Somatotype analysis of male categories found a difference between the <75 kg and <84 kg in endomorphy. In mesomorphy, there is no difference between categories. Perceiving ectomorphy, there is a significant difference between the first category and the >84 kg. Profiling female athletes, three different types of somatotypes were obtained concerning the weight category. The lightest weight category was predominantly endomorphic ectomorphs, and two weight categories were ectomorphic endomorphs (<61 kg and <68 kg), and the other two weight categories were endomorphic mesomorphs (<55 kg and >68 kg). Somatotype differences in the female karate athletes were observed only in the ectomorphy components, between <50 kg and <61 kg. The present study points to how the somatotypes profiles of karate athletes differ between weight categories.

Effects of High-Intensity Interval Training With Specific Techniques on Jumping Ability and Change of Direction Speed in Karate Athletes: An Inter-individual Analysis

This study investigated the effect of 4weeks of high-intensity interval training (HIIT) with specific techniques and analyzed inter-individual variability [classified in responders (Rs) and non-responders (NRs)] on jumping ability and change of direction speed (CODS) in youth karate athletes. Athletes of both genders (n=10) were randomly assigned into experimental group (EG; n=5) and the control group (CG; n=5). The EG trained 2–3days per week applying HIIT (three rounds [15 sets of 4s all-out specific efforts with 8s of dynamical pauses] with 3min of recovery between rounds) during their usual training during 4weeks. Assessments included squat jump (SJ) and countermovement jump (CMJ) and CODS by T-test. No significant interaction effect group by time was found. Although, in percentage and effect size (ES) terms increases were reported in both groups for SJ (EG: 15.2%, ES=0.91 vs. CG: 12.4%, ES=0.02) and only in EG for the T-test (−1.7%; ES=−0.35). In turn, a trend toward a higher proportion of Rs was observed in the EG (40% Rs) vs. CG (20% Rs) for SJ and CODS, respectively. In conclusion, the addition to regular training of a HIIT with specific techniques and based on the temporal combat structure after 4weeks was not a sufficient stimulus to increase jumping ability and CODS in karate athletes.

Hubungan antara Detraining Selama Pandemi Covid-19 dengan Kemampuan Daya Ledak Otot Tungkai Atlet UKM Karate

Karate is one of the most popular martial arts practiced around the world. Karate training puts a great deal of stress on the peripheral joints, and the rotational motion of the spine can greatly affect their mobility. Explosive power is needed in the sport of karate because explosive power is a support in every karate technique movement. Someone who stops exercising for 2-4 weeks will experience a decrease in physiological functions of the body or can be called detraining. The purpose of this study was to determine whether there was a relationship between detraining during the Covid-19 pandemic against the leg muscle explosive power of athletes of Karate UKM State University of Malang. The research is a quantitative correlational study with a causal design. In this research, the sample used is athlete karate State University of Malang as many as 19 people. The data collection method used According to the research, there is a relationship between detraining explosive muscle leg athletes ukm karate Universitas Malang with a p-value is 0.000 less than α is 0,05 and Value correlation coefficient obtained by 0.886. Research concludes that there is a relationship between detraining during the Covid - 19 pandemic on the leg muscle explosive power of SMK karate athletes, State University of Malang. Abstrak: Karate merupakan salah satu beladiri yang paling populer dipraktikkan di seluruh dunia. Pelatihan karate memberikan tekanan yang besar pada sendi perifer, dan gerakan rotasi tulang belakang dapat sangat mempengaruhi mobilitasnya. Daya ledak sangat dibutuhkan dalam olahraga karate dikarenakan daya ledak merupakan penunjang dalam setiap gerakan teknik karate. Seseorang yang berhenti latihan selama 2-4 minggu akan mengalami penurunan fungsi fisiologis terhadap tubuh atau bisa disebut detraining. Tujuan dari penelitian ini adalah untuk mengetahui apakah terdapat hubungan antara detraining selama pandemic Covid-19 terhadap daya ledak otot tungkai Atlet UKM Karate Universitas Negeri Malang. Penelitian ini merupakan penelitian kuantitatif korelasional dengan desain sebab akibat. Dalam penelitian ini, sampel yang digunakan merupakan atlet karate Universitas Negeri Malang sebanyak 19 orang. Metode pengambilan data menggunakan Berdasarkan hasil penelitian, terdapat hubungan antara detraining dengan daya ledak otot tungkai atlet ukm karate Universitas Negeri Malang dengan p-value sama dengan 0,000 kurang dari α sama dengan 0,05 dan Nilai correlation coefficient yang didapatkan sebesar 0,886. Penelitian ini menyimpulkan bahwa terdapat hubungan antara detraining selama pandemic Covid- 19 terhadap daya ledak otot tungkai atlet ukm karate Universitas Negeri Malang.

Comparison of the physical fitness of karate and taekwondo elite athletes

Introduction. A coach compiles and determines a training program based on the physical fitness profile of the athlete. Central Sulawesi taekwondo and karate athletes have been undergoing independent training since mid-2020. Objective of the study. This study aims to investigate the comparison in physical fitness of elite athletes in taekwondo and karate Research methods. This study uses a causal-comparative method, where the researcher seeks to determine the cause or effect of the differences that occur between groups. The sample of this research is 20 elite athletes. Evaluation of physical abilities or physical fitness is an instrument used to measure the physical fitness of taekwondo and karate athletes. An independent sample t-test was used for comparison of independent samples. Research result and Conclusion. The results and conclusions of the study indicate that descriptively the speed, endurance of abdominal muscle strength, and endurance of thigh muscle strength, agility, flexibility, leg reaction speed, and cardiovascular endurance of taekwondo athletes are higher than karate athletes, while for leg muscle strength and breathing karate athletes are higher than taekwondo athletes. Sig value. (2 tailed) or p-value <0.05, it can be concluded that there is a significant difference in the variable components of physical fitness, abdominal muscle strength, agility, flexibility in leg reaction speed, and cardiovascular endurance between taekwondo athletes and karate athletes. Whereas in the variable components of physical fitness, speed, endurance, thigh muscle strength, and leg and respiratory muscle strength, there were no significant differences between taekwondo athletes and karate.

Investigation of Body Perceptions of Karate Athletes

Background: Sports are part of the social life we live in. Sports have an important role in the social, physical, mental and spiritual development of individuals. It has a significant effect on the individual's self-confidence, development of his character, being a social person, development of practical thinking ability, and mental and physical development. One of the ways used for the desired body structure is physical activity. They had the chance to reach a new physical appearance through physical activities. They have a new physical appearance and positive thoughts [1]. Self-perception is positively affected by participation in sports. From this point of view, examining it with different variables causes us to learn various ways to increase the effect of self-concept. Aim: The aim of this study is to examine the relationship between the body perceptions of karate athletes, gender, sport age, and generation levels. Place & Duration: Data was collected in Turkey. Study duration September 2019 to May 2020. Methods: The research group consisted of 303 people between the ages of 12 and 20 who practiced karate in Turkey. Data collection tools 'Personal Information Form' and 'Physical Self-Perception Inventory for Children and Adolescents' scale were used. The relationships between the body perceptions of karate athletes, gender, sport age and generation levels were examined. The obtained data were made according to Shapiro Wilk normality analysis and it was determined that all variables did not show normal distribution. All analyzes were performed non-parametrically Results: The differences in body perceptions of 303 karate athletes in Turkey according to gender, sport age and generation levels were examined in this study, no statistically significant difference was found between the genders, sport ages and generation levels of the participants. Conclusion: There was no significant difference between body perceptions and gender, sport age and generation levels in karate athletes. Keywors: Karate, Body Image, Adolescence