[Comparison of the effects of creatine monohydrate, sodium bicarbonate and their combined administration on anerobic performance and blood lactate level in wrestlers]

Creatine and sodium bicarbonate are energizer supplements used by sportsmen to reduce fatigue and increase power output in sprints - short, strenous excecises - such as rapid running and explosive movements.The purpose of this study was to compare the effects of creatine monohydrate, sodium bicarbonate and their combined administration on anerobic performance and blood lactate level in wrestlers. A group of 24 national Iranian junior male wrestlers with a mean age, height, weight and body mass index [BMI] of 17.7 +/- 4.76 years, 179.6 +/- 7.39cm, 1 +/- 9.94 kg and 23.17+1.92 kg/m[2], respectively, participated in this study. They all took a placebo for 2 days [20 g maltodextrin/day] and then completed six 10-second Wingate sprints, with a 60-second active rest between each 2. After a lapse of 10 days, the subjects were randomly assigned, on the basis of base power and body weight, to a creatine [Cr; 20g creatine/day], sodium bicarbonate [Sb; 0.065 g/kg sodium bicarbonate/day] or creatine-plus-sodium bicarbonate [Cr + Sb; 5g Cr + 0.065 g/kg sodium bicarbonate/day] supplement, using a double-blind design. They took the supplements and the placebo 4 times daily at 9 AM, noon [12'oclock], 6 PM and 10 PM and drank large amounts of water. In the next phase of the study, 2 days after taking the supplements/placebo, the Wingate tests [six 10-second tests] were repeated and relative peak powers [PP], relative mean power [MP] and fatigue index [FI] were assessed. Blood lactate was measured in a hand-finger blood sample before, immediately and 3 minutes after the last Wingate sprint. The data were analyzed, the statistical tests being repeated measures, t-test and ANOVA. An alpha of p

[ comparison of the effects of carbohydrate and carbohydrate-protein supplements on heat shock protein 72[HSP72] during intermittent soccer activities]

The main purpose of this study was to compare the effects of Carbohydrate and Carbohydrate-Protein supplements on heat shock protein 72[HSP72] during intermittent soccer activities. 24 soccer players of super clubs were selected and divided into 3 groups of carbohydrate [CHO], carbohydrate-protein [CHO-PRO] and placebo [P]. Intermittent activities included 24 trials of modified Ekblom tests or soccer simulation activities. Subjects ingested drinks before, during and 1 hour after intermittent activities. Blood samples were collected before [baseline], immediately, 1 hour and 24 hours after simulated intermittent activities. HSP72 levels, Insulin and blood Glucose counts, were measured using Elisa Kit. The results showed significant differences in HSP72 levels, Insulin and blood Glucose levels, immediately and 1 hour after intermittent activities of CHO and CHO-PRO groups compared to placebo group [p