د ا رسة تحميمية لنسب مساىمة العضلات العاممة لمد الذ ا رع وفق اً لمنشاط الكيربائي لممبارزين الشباب

Abstract

According to the importance of the arm stretch motion in many of the basic skills of the fencing sport of all the weapons used in that sport, especially the long thin sword, and since there are no precise data available to measure the rates of the muscles contribution in this kinetic path through reading the electrical activity to that muscles which give a real imagefor the contraction size that pass from these muscles. The two researchers intended to study this phenomenon in order to know the need to use a specific muscle which may contribute in the objective accurate planning for the training programs under a biological vision, which consider as one of the most accurate visions that can help in explaining the internal load for the different physical efforts, in addition to the focus in the training process upon a muscle or a group of muscles for a better achievement. This study aims at identifying the values of the electrical activity of the working muscles in stretch arm movement according to the values of the electrical muscular activity for the young fencers with the long thin sword. The two researchers concluded that the deltoid muscle and the muscle with the three heads have an essential and effective role in the process of stretching the arm which hold the thin sword, and that was clear through measure the electrical activity for these two muscles. The results of the electrical activity mentioned that the long palm muscle have a high electrical activity as a result to holding the tool and moving the wrist in a different orientations. The results didn’t mention stretch the hand which carry a weapon to the front side, beside that the two muscles (the spinal and the humeral muscle with the two heads) didn’t have a big and effective role in the process of stretch the hand which carry a weapon that concluded from the electrical activity which recorded during the kinetic action for the arm stretch.