THE EFFECT OF HIGH INTENSITY TRAINING ON FREE RADICALS’ LEVEL USING SOME BIOCHEMICAL INDICATORS SUCH AS GLUTATHIONE & MALONDIALDEHYDE ENZYMES FOR IRAQI NATIONAL TEAM WHEELCHAIR TENNIS PLAYERS

The training process and the followed methods enhanced the athlete’s strength to make performance intensity reach more than 100%. In addition, this training process, at the same time, is not free of drawbacks that may be reflected negatively on the athlete’s health which may lead to many physiological changes whether at the level of cells or blood through formation of free radicals such as oxygen and hydrogen (…..OH, H, O). These radicals are characterized as being atoms with effectiveness and unstable activity. They search for stability, so they attack the cellular wall and interact with phosphoric fats forming this wall and thus they damage it and then the cell. They may also result in damaging the cell’s DNA. As a result, cells and tissues may catch diseases that may start with colds and end with cancer. Therefore, the researcher referred to this destructive effect of free radicals through their high levels over the normal level during practicing wheelchair tennis players the high intensity training units using continuous training method and their reflections on raising the level of glutathione & malondialdehyde enzymes over normal level. The researcher found that high intensity training with continuous method was connected to some negative aspects such as high levels of free radicals. It is known that their rising over normal rates will lead to damages at the cells level and, accordingly, at tissues level. Therefore, the researcher believes that it is necessary to legalize sport training process in terms of intensity, rest and following a diet spontaneous with high intensity training system noting that this diet should include anti-oxidants which reduce activity of the radicals. Keywords: biochemical indicators, glutathione enzyme, malondialdehyde enzyme, free radicals, high intensity training