The study on the effects of twelve-weeks aerobic Exercise on the changes in some antioxidants and thyroid hormones and the relationship between them in non-athlete female university students

The purpose of this research was to the study the effects of aerobic exercises on the changes in some antioxidants and thyroid hormones. At first 40 non-athletes female university students were selected randomly and divided into 2 groups: aerobic& control. The exercise period was twelve weeks. In each week, there are 3 sessions. The time allotted for each exercise was 15 minutes (Balk's Field experiment), and the exercise intensity was based on a determined percentage of maximum heart rate. The results indicated significant increase in superoxide dismutase, betacarotene and thyroxin hormone, but no significant changes were found in glutathione peroxides and thyridotironin hormone. Moreover, it became clear that there was a significant relation between the changes of superoxide dismutase and thyroxin (r=78%). The amount of Thyroxin hormone increased after this practice program and consequently thyroid hormones will result in the increase of oxidation system through main changes in the number and activity of respiratory cycle in parts of mitochondria. we may conclude that the antioxidant factors will increase in human body (superoxide dismutase, and beta-carotene) so that they can stand out against this process.