The effect of critical speed exercises according to kinetic energy in the development of some biomechanical variables and the level of performance of the skill of clapping in basketball for students of the Faculty of Physical Education and Sports Sciences

Abstract

research aims To prepare a training vocabulary for the proposed program in critical speed exercises according to kinetic energy to develop some biomechanical variables related to the skill of patting and the level of performance of the skill of patting in basketball, and to identify the impact of critical speed exercises according to kinetic energy in developing some biomechanical variables related to the skill of patting and the level of performance of the skill of patting in basketball .

The researcher used the experimental method, and the research sample consisted of (36) students from the second stage students at the Faculty of Physical Education and Sports Sciences at Anbar University for the academic year 2021-2022 AD, with two classes, one as an experimental group and the second as a control group. The number of each group was (18) students, and (13) students were used. a biomechanical variable for the skill of patting in basketball, a test to measure the critical speed, and a test to measure the skill of patting in basketball, and a training curriculum for critical speed was applied according to kinetic energy to develop some biomechanical variables and the level of performance of the skill of patting in basketball, and the approach took (8 ) weeks by (two units) per week, and after completing its application, the data were processed statistically, and the researcher concluded that a positive development appeared in all biomechanical variables (step length, step time, shoulder joint angle, angular velocity of the shoulder joint, angle of the elbow joint, angular velocity of the elbow joint , knee joint angle, angular velocity of the knee joint, angular velocity of the hip joint, angular velocity of the hip joint, height of the center of gravity of the body at the moment of starting the plunge, angle of inclination of the torso at the moment of Starting with a plump, the angular velocity of the torso inclination at the moment of starting the plump) for the experimental group and in favor of the post test, and the emergence of a positive development in the biomechanical variables (step length, stride time, angle of the shoulder joint, angle of the elbow joint, angular velocity of the elbow joint, angular velocity of the knee joint, joint angle hip, angular velocity of the hip joint) for the control group and in favor of the post test, as well as the absence of any significant differences in the biomechanical variables (angular velocity of the shoulder joint, angular velocity of the knee joint, the height of the body's center of gravity at the moment of starting the plunge, the angle of inclination of the torso at the moment of starting the plunge, and the angular velocity The inclination of the torso at the moment of starting to plump) between the pre and posttests of the control group, and the emergence of a positive development in the critical speed and plump tests between four barriers for a period of (45) seconds for the experimental group and in favor of the post test, and the emergence of a positive development in the critical speed and plump tests between four barriers for a period of (45) second to the control group and in favor of the post-test, and the emergence of differences between the experimental and control groups in all biomechanical variables A test of critical speed and plumpness between four barriers for a period of (45) seconds, in favor of the experimental group.