علاقة بعض المتغيرات البايوكنيماتيكية مع زمن الإنجاز لبدء الاركاض في السباحة

الملخص EN

Most trainers rely on the determination of errors in the skills of the swimmer on the simple self-observation and their decision depends on their self-evaluation, which is flawed by some of the shortness due to the speed of movement and the multiple stages and variables.

The research aims to identify the values of some biochemical variables in the technical performance of the track start swimming, And to identify the relationship between some biochemical variables in the technical performance of the track start the swimming and the time of completion of the track start.

The researchers used the descriptive approach to its suitability to the nature of the problem.

The sample of the research was the team of Nineveh province for the youth in the sport of swimming and consisted of (7) swimmers.

The researchers used measurement, scientific and technical observation, and kinematic analysis, methods of data collection to obtain search variables.

To achieve the technical scientific observation, digital photography was used by a digital camera placed at a distance of 5 meters and the focus of the lens was 1 meter above the ground.

The biochemical variables (vertical and horizontal displacement, yield and height of the center of the body weight from the jumping platform for the stages of propulsion, flight, landing, water entry angle, extraction of time and the average speed of the three stages)The researchers concluded that the angles (knee and ankle) 2 of the front foot have a good effect on the prolongation of time and the greater the landing time the greater the total performance time of the start because it is the largest time of the other stages (push and flight)