تأثير التدريب بزوايا مختلفة للانقباض المركزي للرجلين على المستوى الرقمي لرفعة الرجلين Squat لرباعي منتخب مصر لرفع الأثقال المكفوفين

الملخص EN

The general objective of the study is to identify the effect of integrating training on different angles of the concentric contraction of the squat in the program of preparing the Egyptian team for blind powerlifting in preparation for the world cup and the second African championship.

to develop the level of the maximum strength of the two men through the treatment of their sticking points (weaknesses in performance) and in the light of this goal, the researcher used the experimental approach with an experimental design for one group that applied the program.

(12) weeks, with (10) training units per week.

the most important results of the study were the use of training on the central contraction angles of the two legs within the training program for the blind Egyptian players.

between the pre and post measurement of the front legs exercise (17.10%).

also, the use of training on the angles of central contraction of the two legs within the training program for the blind Egyptian national team players contributed to increasing the total of the three lifts by an improvement rate of (19.25%) between the pre and post measurement, in addition to the improvement in the relative strength of the lifters, as the percentage of improvement between the pre and post measurement reached (17.18%), all of this led to an improvement in the digital level of the back squat, where the percentage of improvement between the pre-measurement and the inter-measurement was (13.09%), between the pre-measurement and the post-measurement (17.28%), and between the inter-measurement and the post-measurement (3.71%).

training on the concentric contraction angles of the legs 120 / 140° with different intensities from 80-120% is of great importance in strengthening the muscles working in the stick points and increasing the adaptation processes, and then improving the performance and the numerical level of the back squat.