مقارنة بعض المتغيرات البيوكينماتيكية لنموذجين في الحركة الرجوعية للذراعين في سباحة الزحف على البطن

الملخص EN

This study aimed to identify some kinematic variables related to the movement of the arms of two different models in the backward movement of the arms in the belly crawl swimming and its role in achieving the best achievement.

the study focused on the variables (number of cycles, stroke length, stroke frequency, time every 25 meters, total time, speed every 25 meters, total speed, elbow angle).

the researchers used the descriptive approach to suit the nature and objectives of the study.

the study population and sample consisted of two (2) swimmers representing the northern swimming team in the city of Irbid / Jordan.

they were chosen by the intentional method.

to film the swimming movements of the arms of the sample, the researchers used a (canon 5 D) camera at (100) images / sec, and a (Gopro hero 9) camera at (60) images / sec.

the Osmo action camera has a speed of 100 fps.

the researchers used (Kenova) software to analyze the swimmers' movements, and to find the values of the kinematic variables related to this study.

the raw data were statistically processed through the statistical package program (SPSS V.

20).

the results of this study showed that all the variables of the study had a positive role in the achievement preference with the high attachment model compared to the low attachment model.