تأثير تدريبات بأرض رملية في تطوير بعض الصفات البدنية للاعبين الشباب بكرة القدم

Abstract

Abstract :The idea of training ground sand as resistance training , as show its importance through the difficulty of movement on the floor of sand , which produces due to increased relative movement between the grains of sand, dry non- cohesive , forcing the player to exert more force and effort to overcome this difficulty in movement , and lies this importance in determining the coefficient of friction which is less on the surface ( ground ) compared to the sandy surfaces ( ground ), herbal , and this in turn requires a double effort from player to overcome this resistance . As a result of the lack of studies and research on the exercises on the sand , so it felt a researcher to do in a study to identify the impact of training ( sandy lands ) in the development of some of the physical abilities of young football players .