Environmental stress in sports
mahdi faramoushi; Ramin Amirsasan; Vahid sari sarraf
Abstract
the aim of study was to investigate the effect of simulating staying at medium altitude along with consumption of thyme on the cardiomyopathy rate of type 2 diabetic rats and their simultaneous effect on liver enzymes.Methods: For this purpose, 40 Wistar rats were divided into five groups of eight. In ...
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the aim of study was to investigate the effect of simulating staying at medium altitude along with consumption of thyme on the cardiomyopathy rate of type 2 diabetic rats and their simultaneous effect on liver enzymes.Methods: For this purpose, 40 Wistar rats were divided into five groups of eight. In order to induce type 2 diabetes, streptozotocin was injected intraperitoneally.Altitude group was alternately placed for eight weeks in night sleep conditions at a simulated altitude in a hypoxia chamber, and thyme group was supplemented with thyme in the form of 400 mg/kg of hydroalcoholic extract in 30 ml of drinking water. Cardiomyopathy was measured through two indices of apoptosis (western blot) and fibrosis (staining), and diabetic indices, liver enzymes using methods Calorimetry was measured by biochemistry company.Results: The results showed that 8 weeks of altitude and thyme reduce the fasting glucose level in diabetics (P<0.05). Also, the results of the multivariate analysis of variance test showed Apoptosis and fibrosis showed a significant decrease in myocardial with exposure to altitude and simultaneous consumption of thyme (p<0.025). Also, moderate altitude and consumption of thyme extract had no significant effect on the serum levels of ALT and AST transaminases.Conclusion: Simulated moderate altitude and consumption of thyme in this research decreased fasting blood sugar and on the other hand, by reducing apoptosis and fibrosis, it prevented cardiomyopathy in the heart of type 2 diabetic rats, but these two variables did not cause a significant decrease in ALT and AST enzymes.
Z Rostami Hashjin; R Amirsasan; S Nikoukheslat; V Sari-Sarraf
Abstract
Aim: Irisin is one of the factors that mediate beneficial effects of exercise on adipose tissue conversion, uncoupling protein1 (UCP1) and metabolism. Therefore, the aim of this study was to determine the effect of six weeks high intensity interval training (HIIT) with Turmeric supplementation on Irisin, ...
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Aim: Irisin is one of the factors that mediate beneficial effects of exercise on adipose tissue conversion, uncoupling protein1 (UCP1) and metabolism. Therefore, the aim of this study was to determine the effect of six weeks high intensity interval training (HIIT) with Turmeric supplementation on Irisin, UCP1 and body composition in obese females. Method: Thirty obese women (BMI=33.08±1.78 kg.m-2) age range of 20-25 years in quasi-experimental study with pre-post testing design, were selected purposefully and were randomly divided into two homogeneous groups of 15 participants: HIIT+placebo, and HIIT+Turmeric supplementation (3 milligram curcumin per kilogram body weight per day). Preparation period performed for 3 weeks and HIIT performed for six weeks (4 sessions per week). Blood samples were taken, before and 24 hours after last exercise session in the follicular phase. Serum irisin and UCP1 were measured by ELISA method. Results: In both groups, irisin levels, subcutaneous fat and BMI significantly decreased (P<0.05), and UCP1 levels and VO2max significantly increased after nine weeks intervention (P<0.05). There was no significant difference between groups for irisin, UCP1, total subcutaneous fat, BMI and VO2max values. Conclusion: Six weeks high intensity interval training with turmeric supplementation probably could improve body composition by decreasing Irisin and increasing UCP1 levels.
Vahid Sari-Sarraf; Ramin Amirsasan; Asghar Iranpour
Volume 4, Issue 1 , May 2014, , Pages 59-68
Abstract
Aim: Sport supplementation is aconventionalmethod to prevent of dehydrationand body energystoresdepletion in graded long-term exercise.Acute carbohydrate and L–carnitine supplementation probably effect time to exhaustion and heart rate variablility during recovery from gradedexercise in male college ...
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Aim: Sport supplementation is aconventionalmethod to prevent of dehydrationand body energystoresdepletion in graded long-term exercise.Acute carbohydrate and L–carnitine supplementation probably effect time to exhaustion and heart rate variablility during recovery from gradedexercise in male college athletes. Method: Fourty male college athletes were randomly recruitedforthis study, and divided into 4 groups (control, carbohydrate, L-carnitine and carbohydrate/L-carnitinesupplementation) and ingested 500 cc supplements, 3 hours before exhaustive exercise. Times to exhaustion, heart rate variability in recovery and ratingof perceived exertion were recorded and analysed. One-way ANOVA was used to analyze exhaustion and variance analysis (4 × 2) for changes in heart rate recovery period. Results: Acute carbohydrate supplementation (P≤0.05) had significant effect on time to exhaustion compared to L-carnitine. However, acute supplementation of carbohydrate and L-carnitine combination had a agreater effect on time to exhaustion (P≤0.05). Mean while, separate and combined supplementationhad no significant effects on recovery heart rate variability and rating of perceived exertion. Conclusion: Probably, use of combined carbohydrate and L-carnitine supplementation should be better than seperate carbohydrate or L-carnitine in graded long- term exercise.
Vahid Sari-Sarraf; Zakiyeh Tavakoly; Ramin Amirsasan
Volume 2, Issue 2 , July 2012, , Pages 101-112
Abstract
Abstract
Aim: To examine whether time of day significantly affects salivary IgA, cortisol, α amylase and total protein levels before and after sub-maximal swimming.
Method: Fourteen female swimmers (age 13±1.33 years, weight 48±4.75 kg, Vo2max 45.92±3.96 ml/kg/min) volunteered to participate in ...
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Abstract
Aim: To examine whether time of day significantly affects salivary IgA, cortisol, α amylase and total protein levels before and after sub-maximal swimming.
Method: Fourteen female swimmers (age 13±1.33 years, weight 48±4.75 kg, Vo2max 45.92±3.96 ml/kg/min) volunteered to participate in the study. In a fully randomized, cross over design, each subject performed 10×200 m front crawl at 80% of their seasonal best time, with one minute rest between each 200 m, at 08:00 and 18:00 hours on two days aware. Timed, unstimulated saliva samples were collected before and after exercise. Saliva samples were analyzed by two-factor analysis of variance (ANOVA) with repeated measures. Statistical significance was accepted at p
Afshar Jafari; Alireza Rostami; Vahid Sari-Sarraf
Volume 2, Issue 1 , April 2012
Abstract
Abstract
Aim: The aim of this study was to determin the effect of short-term Coenzyme Q10 supplementation on plasma lactate and serum total creatine kinase (CK) in healthy collegiate men after an aerobic exercise.
Method: Eighteen healthy untrained men (age 24±3 years, body fat 12±2%, and VO2max ...
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Abstract
Aim: The aim of this study was to determin the effect of short-term Coenzyme Q10 supplementation on plasma lactate and serum total creatine kinase (CK) in healthy collegiate men after an aerobic exercise.
Method: Eighteen healthy untrained men (age 24±3 years, body fat 12±2%, and VO2max 39±3 ml/kg/min) in a randomized and double-blind design were allocated in two equal groups: supplement group (n=9, Coenzyme Q10: 2.5 mg/kg/day) and placebo group (n=9, Dextrose: 2.5 mg/kg/day). After supplementation period, all subjects were participated in aerobic exercise protocol with 75% VO2max on the treadmill for 30 minutes. Blood samples obtained before the Q10 supplementation along with immediately before and after the exercise protocol, respectively. Plasma lactate and serum total creatine kinase were determined by automatic analyzers. Data were analyzed by repeated measure ANOVA, Bonferroni and independent t test at P≤0.05.
Results: The results show that short-term Coenzyme Q10 supplementation has no significant effect on basal parameters. However, plasma lactate and serum total CK were significantly increased (P
