دراسة الزخم الخطي لحركة الهبوط بقبلتين هوائيتين خلفيتين مكورتين على جهاز الحلق

الملخص EN

The imaging was carried out from the front (Front View) and the right (Right View) to cover all the variables of the study.

Made filmed search experience indoor hall for the active Scout of the Directorate of Education of Kirkuk at (08.17.2015) five pm It was installed the two camera on far (6 m) and height (1.75 m) In order to assess the level of technical performance (degree of referee) according to the International Gymnastics Federation rules.

The researcher concluded that the way of the linear momentum was influenced by the movement of parts of the body when it turn arms, as well as the angles change affected different parts of the body, which works to increase or decrease in the angular velocity of the body as well as the researcher benefited from gravity of ground .

It was observed that motor performance rings is not at a high level for the Iraqi national team players as most of them did not get good degrees because of the large degrees of discounts technical performance, which constitute a large percentage of the degree.

It is difficult for the coach during training on the technical performance sports movements, especially Gymnastics sport diagnosed technical performance errors accurate because of movement speed performance and contain the movement on the overlapping movements, especially if the difficulty in performing the movement.

The research aims to identify some of the Biokenmatics variables for analytical moment Momenta laner study three dimensional of double back tuck from ring, Identify on the level of technical performance of the movement and to identify the technical performance errors.

The researcher used the descriptive approach to suitability for the search.

The research sample was selected and the way international's (2) players who are members of the Iraqi national team and the province of Kirkuk in the sport of gymnastics, and the researcher use scientific observation self through self-evaluation of the movement by the arbitrators and experts.

Technical and scientific observation through digital imaging speeds (210 images From \second) with a camera of the type (CASIO), and use two camera