RESUMEN
The effective method of treatment of Polycystic Overy Syndrome [PCOS] is lifestyle modification. The aim of this study was to evaluate the effect of 12 weeks aerobic exercise on DHEAso4, 17OH-Progestron Concentrations, number of follicles and menstrual condition of women with PCOS. In this clinical trial, 40 PCOS patients lean [BMI<20] and obese [BMI>25] randomly divided into two trained and sedentary control groups. DHEAso4, 17OHProgestron Concentrations, number of follicles and menstrual condition were measured before and after the program [12-week exercise training program, aerobic exercise at 60-80% of maximal heart rate, 25-30 min/day, 3 days/week]. Decline of DHEAso4, 17OH-Progestron Concentrations were significant after exercise in obese group [P=0.023, P<0.0001]. The number of follicles right and left ovaries decreased significantly after exercise in two groups lean and obese [Right; P=0.019, P=0.041 and Left ovary; P=0.005, P=0.008]. Menstrual situation was improved after exercise in obese and lean groups [P=0.028, P<0.0001]. The body weight decreased significantly after exercise in obese groups [P<0.0001]. It seems that a term of exercise with weight loss can induce decline of DHEAso4 and 17OH-Progestron. In addition, exercise lead to improved menstrual condition and reduction of number of ovarian follicles per groups of lean and obese
RESUMEN
There is fairly scarce information about the effects of zinc, an essential trace element, on exercise performance. Studies concentrate mostly on the distribution of this element in the body in response to exercise. The purpose of this study was to investigate the effect of exhaustion exercise on the testosterone levels and plasma lactates in road cyclists who are supplemented with oral zinc for 4 weeks. In this semi experimental sixteen male road cyclists, who were healthy in the first evaluation were selected from the Tehran traffic team and were divided into two groups according to mass body index; zinc group and control group. After 4 weeks zinc supplementation [30 mg/day], blood samples were collected from each subject before and after an exhaustive exercise bout. Data were analyzed by independent and paired sample t test. Total testosterone, free testosterione and lactate levels in two groups were increased by exercise [P<0.05] and there was no significant differences between total testosterone and lactate levels in two groups before and after exhaustion exercise [P>0.05]. There was a significant difference between effects of exhaustion exercise on free testosterone levels between two groups [P<0.05]. According to this study, zinc supplementation has no significant effects on testosterone and lactate levels in response to exercise in subjects with a balance diet. However, free testosterone levels were increased by exercise after zinc supplementation