The relationship of some kinematic variables to different launch anglesIn improving the level of shot put
| Autor: | Nawaf Al-Obaidy, Marwan Mohammed, mamoun shehab |
|---|---|
| Jazyk: | Arabic<br />English |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | مجلة الرافدين للعلوم الرياضية, Vol 23, Iss 71, Pp 94-113 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1993-9345 2664-2514 |
| DOI: | 10.33899/rjss.2020.164892 |
| Popis: | The goal of the research is identify: 1- values of a number of kinematic variables in the main stage by throwing the weight in the way Glacier. 2- The relationship between the kinematic variables and the variation of firing angle in the main stage by throwing the weight in the piston way . The researchers used the descriptive method in a relationship style to suit the objectives and nature of the research. The researchers selected the most prominent weightlifting students of the College of Physical Education and Mathematical Sciences / Mosul university for the academic year 2018 in the restricted, five-stroke method. firstty vertical lens of the camera was vertical on the ejaculation circle (90 cm), and the distance from the field of motion (4 meters) was either camera Secondry to visualize the gravity course, the lens height was above ground level (12.20 meters), and the first camera beside the left ejector vertical, as well as for the location of the second camera, which was the middle of the firing sector, and were intended to extract the kinetic variables of each ejector at the main stage by throwing the weight in a backlit way, the following programs were used to reach search results - ACD see 10 Photo Manager. Al - Hero soft program- AutoCAD2009 - MaxTrack program. - Paint program - statistical spss program to process data statistically. A number of conclusions were reached, the most important of which are: - The results of the study showed that there were significant correlations with (28.205%) of the total number of variables of the research sample which were 39 variables . - When setting up a barrier and at different elevations, the variables (launch height, launch angle and instantaneous launch velocity) had an effective role in improving the level of performance of the euphrine effect of extrusion. The researchers recommend a number of recommendations, including : - Interest in developing the level of achievement effectively ejection of weight in the manner of O'Brien through video imaging to detect the weaknesses and imbalances of the technique of skill performance. |
| Databáze: | Directory of Open Access Journals |
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