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مؤشر الانسيابية والنشاط الكهربائي لبعض العضلات العاملة وعلاقتها بالمتغيرات البيوميكانيكية واداء الضربة المرفوعة الامامية للاعبي المنتخب الوطني بالريشة الطائرة == Index Cruise Some of The Electrical Activity of The Muscle And Its Relationship To Operating Variables Biomechanical Perform Forehand Blow Brought For National Team Players In Badminton
Author name:
انعام جعفر صادق
Supervisor name:
بشرى كاظم عبد الرضا
General topic:
Sports
Specific topic:
Racket Games
Degree:
Master
University:
University of Baghdad
Language:
Arabic
University location:
Baghdad
First pages:
17T1376 - p.pdf
Abstract:
The thesis included five sections , the first section tackles the introduction of research and its importance in which the researcher tackles badminton because it is characterized its fast performance and continuous movement. the situations require a fast motor response. the coaches and specialists resort to kinetic analysis and the use of technology to calculate some biomechanical variables and to calculate the angles and the speed of different body parts during movement, as well as resorting to devices including the Electromyography (EMG) to record and calculate the electrical activity of muscles working during the performance skills in playing badminton. By watching and following - up the world and local models of the game and championship Iraqi universities, which includes most of the national team players have noticed a large number of players practicing this skill depending on the strength resulting from the elbow and forearm muscles only, or of the shoulder joint and the strength of the muscles of the upper arm. In the best cases, they depend on the shoulder belt in the production of force. hence the research problem was crystallized when the researcher found that the impact of the joints and muscles associated with body parts and labor and not affecting investment and hiring this effect by the players during the performance optimally represented Streamline between mechanical parts of the body and motor transport. That has prompted the researcher to make a recombination of biomechanics science and the variables of electrical activity of muscles (EMG) and flow index as a means. In order to achieve objective of her study that are : - 1 - Identifying the flow index through the stages of performance skill to strike the front of the national team players badminton. 2 - Identify the values of variables electrical activity of some working muscles through the stages of performance skill to frontal strike of the Iraqi national team players badminton. 3 - The relationship between the flow index and the variables of electrical activity (EMG) for some muscle and biomechanical variables and the level of performance skill frontal strike, the Iraqi national team players badminton. The researcher assumed that there is a significant correlation between the flow index and the variables of electrical activity of the muscles during some stages with the performance biomechanical variables skill frontal strike for the badminton players in the Iraqi National of badminton.The areas of research The players of the national team badminton totaling (5) for the period from 26/1/2014 up to 02/02/2014 at the Hall Stadium Badminton Assyrian Club. The researcher tackled a number of theoretical studies in Section Two - related to research topic, as well as the researcher tackled to study a similar relationship with her research. This included the third section includes (5) players from the Iraqi national team badminton for the year 2014 to 2013. The researcher used some media, devices and tools to gather information and determined the tests for them. these includes the electric muscle activity (EMG) Bluetooth weighs (250 g) Type ((Myo trace400) four - channel by (Inc - Noraxan) Company as well as the video camera graphic specially for analysis motor type (Com handy / Sony quickly (25) Image / s and the other of type (Sony) Japanese - made high - speed frequency (210) Image /sec. She conducted tests to research to the search results using the appropriate statistical means. Through the presentation, analysis, and discussion of results in section Four, the statistical treatments were was obtained and have been converted from the statistical language based icons numbers to the language of scientific reasoning based on the parameters of the description in the induction (moral, non - moral). Then they were discussed in a scientific method with accreditation on scientific sources, has been through the debate to achieve the objectives of the research and validation of hypothesis. The researcher concluded : - 1 - The variable of electrical activity of the gastrocnemius muscle has a positive impact in the variable (peripheral speed of the arm), which reflected positively in the course of adjusting to rapid kinetic sleek and exact itinerary badminton in subsequent phases. 2 - the variable of electrical activity of the muscle flexor carpi radialis have a positive impact in the variable (wrist joint angle and angular velocity of the arm), which reflected positively in the direction of complete motor transport duty motor. 3 - The variable flow have a positive impact in each of the variable (the angular velocity of the arm and the angular velocity of the trunk and a variable level of performance skill). 4 - The variable rate that the amplitude of the rectus femoris muscle have a positive impact in each of the variable (trunk inclination angle, angle of the wrist joint), the bio - Kinematic other variables did not show any correlation with it. 5 - The variable rate that the amplitude of the spinal dorsal muscle have a positive impact in each of the variable (wrist joint angle, angular velocity of the trunk), for the bio - Kinematic other variables did not show any correlation with it. 6 - The variable rate of capacity for each muscle (rectus femoris, spinal dorsal, flexor carpi radialis) has a positive impact in the variable (the level of performance skills), for the bio - Kinematic other variables did not show any correlation with it. The researcher recommended a number of recommendations, including 1 - The need to emphasize the effectiveness of the flow index in badminton - because of its role in the importance of achieving greater amounts of quantity (momentum), energy and, consequently, better performance. 2 - The need to pay attention to train players on how to take advantage of the different angles of the joints of the body in the form of improving the performance and get the bio - Kinematic variables necessary to obtain an optimal level of performance. 3 - The need to develop a training course customized depending on the results of analysis of kinetic bio - Kinematic to reach optimum performance skills to blow the front filed through badminton coaches attention to these approaches for the development of the values of certain variables bio - Kinematic especially angular velocity and speed of the peripheral arm strike. 4 - The need to emphasize the correct mechanical situation of the point higher center of gravity of the body during the frontal strike because of its positive role in achieving the degree of stability of the body balance to increase the amount of force act hanging by the player towards the ground and the corresponding reaction force equal the amount and the opposite direction across the motor transfer in the body of the player who perform the movement. 5 - The need to emphasize the variable angle of the knee and the tendency of the trunk because of mechanical variables to achieve the best stretch of the body and its positive influence in determining the values of the high center of gravity of the body, motor transport is synergistic simultaneous seeks to achieve the desired goal motor. The researcher pointed to the sources, and references which have been used in research procedures, as well as the development of supplements for the study.
