النشاط العضلي الكهربائي وعلاقته بالنقل الحركي لمهارة التصويب من القفز بكرة اليد

الملخص EN

The main objectives of the study are to identify electrical muscular activity as well as to identify motor transport and find the relationship between electrical muscular activity and motor transfer of the shooting skill of handball players, as well as to identify the percentages of contribution to the muscles in the stages of motor performance of the skill in each stage (the approach stage, the stage of advancement, The shooting stage), as well as the contribution ratios for the biomechanical and angular variables of the skill.

The researcher chose the research sample in a deliberate way and included (1) one of the Iraqi handball players, and the study was conducted in the closed hall of the Karkh Sports Club.

The researcher used the electromyograph (EMG 16 HANIE WIRLESS) device type (Mega ME6000) as well as the Fastec Inline 125 kph camera to obtain muscle contribution ratios as well as to obtain the value of the biomechanical and angular variables of the study.

(SPSS) to treat the values statistically, including the arithmetic mean, standard deviation, percentage, skew coefficient, flatness coefficient, Pearson's correlation coefficient "t", ONE WAY ANOVA, and the least significant difference LSD test.

The total average percentage of the contribution of the muscles of the right upper extremity was (57.31%), while the total of the average percentage of the contribution of the muscles of the lower left extremity was (42.71%), and all the variables of speed, acceleration, amount of movement and strength of all kinds came with the highest values at the moment of shooting for the skill, there were correlations between the percentage of The contribution of muscles and biomechanical variables The most closely related muscles were (the ulnar flexor of the wrist) with each of the (angular velocity) of the player's body joints (foot, knee, trunk, shoulder, elbow).