دراسة تحليلية لبعض المتغيرات الكينماتيكية للتصويب من القفز من مركز الزاوية المحتسب بثلاث نقاط و علاقته بالدقة في كرة السلة

الملخص EN

The study aims at : - Recognizing the values of some kinematical variables for the player and ball during aiming with jumping from the corner centre calculated in three points in basketball .

- Recognizing the relation among some kinematical variables for the player and ball during aiming with jumping from the corner centre calculated in three points in basketball.

The researchers have hypothesized the presence of moral relation among some kinematical variables for the player and ball during aiming with jumping from the corner centre calculated in three points in basketball.

The researchers have adopted the descriptive method for its convenience with the nature of the research .So , the research sample consisted of (5) players from the basketball team of the college of Physical Education –Mosul University ,who participated in basketball competition of the colleges of Mosul university in (2009-2010) .The sample has been selected on purpose .

The researchers have used the technical scientific observation ,measurement , analysis , and tests as means of collecting data in order to obtain some biokinematical variables for the sample .

The technical scientific observation has been achieved by using video taping by using a video camera of the type(Sony- Digital-TRV 48 ) with the speed of 25 pic./second.

The camera has been placed in a position that can cover the player performance during aiming and with a distance of(7)m .

The researchers make use of the following statistical means (arithmetical mean , standard deviation , simple correlation factor (Pearson ) .The researchers have concluded the following : 1-The presence of positive moral correlation between the following kinematical variables :  The height of player flight and the perpendicular distance of the arm .

 The time of player flight and the perpendicular distance of the throwing arm and the height of the player flight .

 The horizontal speed and distance of the throwing arm and the height of the player flight .

 The horizontal speed of the throwing arm and the time of the player flight from the moment of leaving the earth .

2-The presence of a negative moral correlation between the following kinematical variables :  The horizontal speed of the throwing arm and the time of the throwing arm performance .

 The4 perpendicular speed of the player and the total time of aiming.

 Tthe ball starting corner and the distance and speed of the ball .

 The elbow corner of the throwing arm and the perpendicular speed of the player.

3-The absence of some player's interest of aiming at the end of jumping ,but not at the moment of leaving earth.

4-The absence of interest in wrist movement in pursuing arm movement after the starting point of the ball during aiming.