Sampling and data collection
48 hours before the start of the first training session and creatine supplementation as well as 48 hours after the end of the 10-week course of interventions, blood samples were taken at 8 am in the amount of 6 cc (after approximately 10 hrs of night fasting). The samples were then centrifuged at 3000 g for 10 mins and the extracted serums were frozen at −70°C until final assay.Malondialdehyde (MDA), glutathione peroxidase (GPX) and total antioxidant capacity (TAC) serum levels were determined using commercial kits (Human ELISA; ZellBio Company, Berlin, Deutschland) according to the manufacturer’s protocol with a lower detection limit of 0.1 μM, 5 U/ml, and 0.1 mM, respectively. The measurement of As previously mentioned, in order to measure the maximum muscle strength, the Brzycki equation was used (In order to control the participants’ nutritional status, a 24-h dietary recall was taken 48 hrs before the start of both blood sampling steps. In this regard, the calorie intake was analyzed through nutrition software, and there was no significant difference in terms of calorie intake of the subjects in the three groups.