With the will of Allah Almighty discuss the thesis presented by the researcher/Randa Mustafa Mohamed Mahmoud residing in the Department of Sports Health Sciences at the Faculty of Physical Education, titled  "The effect of central and decentralized muscular contraction on some physiological and biochemical responses in athletes " On Sunday 14/4/2019 at 12 noon in the Hall of Prof. Dr. Mohamed Ra'fat Mahmoud in the college