The effect of Play off matches on oxidative stress and its relation with some inflammation indicators in volleyball players

   The research aims at defining the effect of play off matches on: Oxidative stress (Malondialdehyde (MDA), Phospho-creatine Kinase (CPK), Lactate) , Some inflammation indicators as (Inter-Lokine 6 concentration (IL-6), Tumor necrosis factor alpha (TNF-a ) ,Defining the relationship between oxidative stress and inflammation indicators.,The researcher has used the experimental method (pre/ post measurements) on one experimental group. The study variables were studied in the pre and post measurements (immediately after the final match of play offs). The research sample was ten volleyball players from the first male volleyball team of Zamalek Club who are registered in Egyptian Volleyball Federation. The research sample was selected purposely. The main results are: Play off matches lead to oxidative stress raising as Malondialdehyde (MDA), Phospho-creatine Kinase (CPK), Lactate., Play off matches lead to inflammation indicators raising as Inter-Lokine 6 concentration (IL-6), Tumor necrosis factor alpha (TNF-a ),There is an significantly correlative relationship between oxidative stress variables as Malondialdehyde (MDA), Phospho-creatine Kinase (CPK), Lactate and inflammation indicators as Inter-Lokine 6 concentration (IL-6), Tumor necrosis factor alpha (TNF-a ).,Play offs need special training techniques and recovery procedures to protect players from muscle injuries.