دراسة تحليلية لبعض المتغيرات البايوكينماتيكية وعلاقتها بقوة ودقة الأداء لعدد من الركلات الهجومية للاعبي التايكواندو

الباحث

عمر محيي الدين عبد الرزاق الحافظ

المشرف

وليد غانم ذنون البدراني; محمود شكر صالح الحياني

الجامعة

جامعة الموصل

الكلية / القسم

التربية البدنية وعلوم الرياضة / التربية البدنية وعلوم الرياضة

الشهادة

دكتوراه

السنة

2022

لغة الرسالة

A

الكلمات المفتاحية

المتغيرات البايوكينماتيكية;التايكواندو;الركلات الهجومية;البايوميكانيك

" Analytical study of some biokinamatic variables and their relationship to the strength and accuracy of performance of a number of offensive kicks for Taekwondo players" Supervising Researcher Prof. Dr.Waleede Ghanim Thanoun Omer Mohieddin Abd-Alrazaq Prof. Dr. Mahmoud Shukr Saleh 1443 A.H 2022 A.D The study aimed to identify the following: • Identifying the values of some biokinamatic variables for the offensive kicks under study. •Identifying the values of the variables (strength and accuracy of performance) for the offensive kicks under study. • Detecting the relationship between the values of some biokinamatic variables and the productive force to perform the kicks under study. • Detecting the relationship between the values of some biokinamatic variables and the performance accuracy of the kicks under study. The researcher assumed the following: • There is a statistically significant relationship between the values of somebiokinamatic variables and the productive force to perform the offensive kicks under study. • There is a statistically significant relationship between the values of some biokinamatic variables and the performance accuracy of the offensive kicks under study. The researcher used the descriptive approach in the correlative relations method for its suitability and the nature of the study. The research community consisted of taekwondo players, the advanced category, which numbered (75) players representing the players of the teams (Baghdad, Nineveh, Erbil) for the sports season (2020-2021). Their number is (50) players out of (75) players representing 80% of the research community to apply the tests that were made to the modifications of the offensive kicks under study. The research sample consisted of a sample of the two exploratory experiments, the number of it's members (9) players were selected from the research community, five of them represent the Nineveh Governorate team. And from the application sample for the tests (strength, speed, and accuracy) and they represent the teams (Baghdad, Nineveh, and Erbil), as well as the analysis sample, they are (6) players who were among B the application sample were chosen in a deliberate way, who represent (3) from the Nineveh Governorate team and (3) from the Erbil governorate national team players and registered with the Iraqi Taekwondo Federation. The researcher relied on the homogeneity of the sample on (height, mass, chronological age, training age and length of the man) and in order for the sample to be homogeneous and individual differences do not affect the statistical information, the researcher conducted a homogeneity of the research sample members using the coefficient of variation. The researcher also used measurement, testing, and scientific observation as means For data collection, scientific observation was carried out using three video cameras at a speed of (100) frames per second The first camera was placed at a distance of (2.5 m) from the center of the movement to the right of the player, and the lens was at a height of (1) m from the surface of the earth, while the second camera was placed at a distance of (2.5 m) from the center of the movement to the north of the player The lens was at a height of (1) m from the surface of the earth, and the third camera was installed from the top above the center of the movement and at a height of (3.5 m), in order to obtain the values of some biokinamatic variables for the offensive kicks under study , the researcher also used the electronic drip system device to record successful kicks and then get points, and a one-meter-long scale was used photographed in both horizontal and vertical positions, to calculate the conversion factor from image to reality to obtain the biokinamatic variables, Each player was given one experimental attempt before each test, and the best kick was chosen during which the player obtained the best strength and accuracy of performance to analyze it using computer programs for kinetic analysis, and the researcher relied on the content of similar studies that dealt with some kinematic variables. The data were statistically processed using the SPSS program to obtain (arithmetic mean, standard deviation, coefficient of variation, simple correlation coefficient,( t) test for independent samples) and the equations that are related to the biokinamatic variables. The researcher concluded the following from the study: 1- The standardized tests of all kicks under study for strength, speed and accuracy had a positive role in revealing the most important biokinamatic variables that achieve the registration of a touch according to the electronic drip system. 2- Many of the biokinetic variables for all the kicks under study had an effective effect in shedding the appropriate and influential force in scoring points according to the electronic scoring system during the fight. 3- The use of appropriate angles for the different joints of the body, especially the angles of the kicking leg, had a positive effect in producing the appropriate force and accuracy in taking the kick, which ends with scoring points according to the electronic scoring system during the fight. 4- The torso played a major role in the frontal and circular kick in increasing the vertical velocity, which helped to increase the circumferential velocity of the kicking leg to produce the appropriate force and score points according to the electronic drip system. Through these conclusions, the researcher recommends the following: 1- The necessity of providing and using the electronic scoring system during training and friendly matches between players for the category of applicants, due to the importance of this system in determining the player’s achievement. 2- The necessity of using the electronic scoring system on other samples of different groups (juniors, youth). during training. 3- Conducting similar biomechanical analytical studies, but for other offensive kicks, and their relationship to the kinematic variables. 4- Conducting a similar study, but for other biokinetic variables that were not addressed in this study, in addition to the kinetic variables.

طلب نسخة من الملف

الملفات غير منشورة على الموقع. اترك بياناتك وسيتواصل معك موظفو قسم الشؤون الثقافية والفنون لإرسال النسخة مجاناً.

الاسم

رقم الهاتف

البريد الإلكتروني

الغرض من الطلب (اختياري)

إرسال الطلب