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1

Sport activity-systematic approach to science, technology and art part two: engineering technology and sport

100%
Erdmann W. S.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2009
|
tom 01
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nr 2
Technology is involved in creating new objects, processes, structures, dependencies that have never existed before. Engineering technology of creating new material objects or preparing spaces for different human or animal activity encompasses: 1) engineering sciences, 2) engineering processes of production, 3) products and spaces. Within engineering sciences there are: metrology, material science, energy science, machine science, electro-technique, electronics, automation, robotics, informatics, and tele-communication. The engineering process consists of several stages: analysis of needs, designing, production, usage and maintenance, fixing and parts exchange, waste disposal, marketing, development of products. The sport of today has the same aims as earlier: competitors must be faster, jump farther and higher, lift heavier loads, shoot with higher precision at the target, show better tactical solutions. Engineering helps the above mentioned problems significantly. Within sport engineering products one can present those concerning the body, movable, immovable, those concerning information technology, and miscellaneous ones. There are also different spaces used by sportspersons.
2

Development of body morphology of Iraqi students: Sedentary way of life and fatness

63%
Al Sudani A. D., Erdmann W. S.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2017
|
tom 09
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nr 2
The aim of the research was to compare morphology of Iraqi students of the first and fourth years of study with mostly sedentary style of life. The research involved 88 students of the first year of study and 88 students of the fourth year of study of the University of Baghdad, Baghdad, Iraq. Basic anthropometric measurements were taken of the body mass, straight-linear dimensions, parts of extremities’ circumferences, skin-fat folds. The fourth-year students had significantly greater body mass as compared to the firstyear students. Their linear dimensions were higher, even though insignificantly; their circumferences and skin-fat folds were significantly higher. BMI was for both groups within a norm, but the fourth-year students had a greater value of this index. It could be concluded that the sedentary style of life was the reason for higher values of body dimensions, especially skin-fat folds, in students of the fourth year of study. Another reason was probably lack of exercise and westernization of lifestyle, especially fast food consumption. The city and university administration should establish places for all people in order to prepare the neighbourhoods for exercising.
3

Application of the as-4 software in research on players’ kinematics on a large area in 3D coordinates as an alternative to commercial programs

51%
Aschenbrenner P., Lipinska P., Erdmann W. S.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2012
|
tom 04
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nr 3
Background: In this work an original computer program for the video analysis of players on a large area by using a single camera is presented. Video analysis is one of the basic research techniques of human movement applied in sport. A set of cameras and special computer software is used for this purpose. Many companies provide hardware and software, but, unfortunately, their high cost and difficulty in usage are their major drawbacks. In order to simplify and reduce the costs of data analysis (obtained from a single camera), AS-4 program was developed. Material/Methods: The program includes an original algorithm which enables positioning of the camera in any place. Specifying dimensions of the playing field and an object, the program automatically calculates a scale and transfers the data to the 3D matrix. Then, using flat transformation, 3D coordinates can be determined. Results: The algorithm was tested in the field. The accuracy of determining coordinates was studied in 3 areas and errors of the method were within an acceptable range. Conclusions: With the present program, it was possible to determine the kinematic parameters at any time during the movement. The accuracy of the program was sufficient to determine the 3D position. It can be used to determine the movement path over a large area and then to calculate velocity and acceleration.
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