Research Paper I Open Access I Released under (CC BY-NC) license
S Vakil Mahallati; M ShariatZadeh Joneidi; H Rohani
Abstract
Aim: The aim of this study was to investigate the effect of short-term CLA supplementation on fat burning rate during exercise in obese women. Method: The subjects of this study were 10 obese women (age 34.7±4.7 yrs, BMI 34.2±4.8 kg/m2, and weight 83.1±1.9 kg). Subjects consumed ...
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Aim: The aim of this study was to investigate the effect of short-term CLA supplementation on fat burning rate during exercise in obese women. Method: The subjects of this study were 10 obese women (age 34.7±4.7 yrs, BMI 34.2±4.8 kg/m2, and weight 83.1±1.9 kg). Subjects consumed 1.5 g/day CLA for 7 days. An incremental exercise test on a treadmill was performed before and after the supplementation period to measure the maximal fat oxidation (MFO) and corresponding intensity (FATmax). Blood samples were taken before and immediately after the test for measuring the serum levels of Glycerol. Paired t-test and ANOVA with repeated measures were used to compare the means of variables. Results: There was no significant difference in mean FATmax between before and after CLA supplementation (p=0.655). Also, no significant difference was observed in MFO between before and after CLA supplementation (p=0.133). CLA supplementation after one exercise session did not have a significant effect on plasma glycerol; However, the interactive effect of these two factors was significant and increased the glycerol levels. Conclusion: In general, the findings of this study showed that CLA supplementation, at least in short-term period, does not improve the fat burning rate during exercise in obese women.
Research Paper I Open Access I Released under (CC BY-NC) license
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.
Research Paper I Open Access I Released under (CC BY-NC) license
J Vakili; f Halal Khor; M Aghaei
Abstract
Aim: : Exercise training with blood flow restriction (BFR)is a modern method of training that has been developed in two recent decades and has been used for improvement of performance. Therefore, this study was conducted to identify the effect of 4 weeks rock climbing with blood flow restriction on athletic ...
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Aim: : Exercise training with blood flow restriction (BFR)is a modern method of training that has been developed in two recent decades and has been used for improvement of performance. Therefore, this study was conducted to identify the effect of 4 weeks rock climbing with blood flow restriction on athletic performance and some muscle damage indictors in elite rock climbers. Method: : In a semi experimental research method, 12 male and 12 female elite rock climbers with at least 4 years rock climbing experience and age range of 23 to 27 years and a fat percentage of 10 to 20 percent purposefully selected among the climbers, and allocated in two equal BFR and none-BFR groups. Both groups performed 4-week rock climbing training program consisting three sessions per week and each session was 90 minutes, severity of each session was 60 to 80% of climbing grades. Blood samples were obtained in baseline and after four weeks of climbing training to determine the amount of lactate dehydrogenase (LDH), creatine kinase (CK) and lactate. Also, hand grip, explosive anaerobic power, body fat percent, adduction strength in upper body and degree of climbing was measured. For data analysis, independent T test was used at α ≤ 0.05. Results: After 4 weeks of climbing with and without limitation of blood flow, the index of muscular damage of LDH, CK did not show significant difference in response to climbing exercise. But lactate level was lower in BFR rather than NBFR. There are not any difference in Hand Crip strength, explosive anaerobic power, body fat percent, adduction strength in upper body between BFR and NBFR groups. But in degree of climbing, the result showed the better performance in BFR than NBFR (P <0.05). Conclusion: According to the results of this study, rock climbing training with or without BFR, do not increase muscular damage. and it could influence on performance.
Research Paper I Open Access I Released under (CC BY-NC) license
A Rahmani; B Mirzaei
Abstract
Aim: Resistance training with new methods of exercise such as blood flow and respiration restriction that is more performed at a lower intensity is pursued various physiological responses. Therefore, the main purpose of this study was to determine the effect of blood flow and respiratory restriction ...
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Aim: Resistance training with new methods of exercise such as blood flow and respiration restriction that is more performed at a lower intensity is pursued various physiological responses. Therefore, the main purpose of this study was to determine the effect of blood flow and respiratory restriction on blood lactate concentration and growth hormone in the acute response to resistance exercise in collegiate wrestlers. Method: In this study, a cross-sectional was used in which 8 collegiate wrestlers with more than two years' experience (mean age 26.87±4.7 years and body mass index 25.26±2.49 kg/m2) were randomy assigned in three conditions including: control (%801RM) and resistance exercise with blood flow and respiratory restriction (%301RM). Four sets with 15 repitations squat were considered as resistance exercise. Blood samples were collected before and immediately after exercise. Results: all three types of exercise caused a significant increase in lactate and growth hormone immediately after the exercise (p <0.05), but no significant difference was observed between the groups (p <0.05). Conclusion: The results of this study indicate that resistance exercise with restriction of blood flow and respiration such as routine resistance training can lead to increased metabolic and hormonal responses. This research also rather confirms the effectiveness of this type of exercise and satisfies the goals such as increased lactate and growth hormone expected from high intensity exercises.
Research Paper I Open Access I Released under (CC BY-NC) license
B Esmaeili; A Abdi; J Mehrabani
Abstract
Aim: Lipocalin-2 and interleukin-1 beta (IL-1ß) are two inflammatory markers affecting on insulin resistance. The aim of this study was to investigate the effect of aerobic training with cinnamon extract on blood levels of Lipocalin-2 and IL-1ß in insulin-resistant rats. Method: : In this ...
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Aim: Lipocalin-2 and interleukin-1 beta (IL-1ß) are two inflammatory markers affecting on insulin resistance. The aim of this study was to investigate the effect of aerobic training with cinnamon extract on blood levels of Lipocalin-2 and IL-1ß in insulin-resistant rats. Method: : In this experimental study thirty-six Wistar male rats were randomly divided into four groups: control (n=9), aerobic training (n=9), cinnamon (n=9), and aerobic training+cinnamon (n=9). Insulin-resistance status induced by %10 fructose solutions during 5 weeks. Training groups subjected to a 5-day per week aerobic training program (with 75-80% VO2max) for 8 weeks. Supplementayion groups subjected to injected 200 ml/kg/day cinnamon extract. Results: Exercise training significantly reduced Lipocalin-2 compared to the control group, and compared to extract group (P<0.05). Also, in all three experimental groups, IL-1 beta decreased significantly compared to control (P<0.05), and significant decrease was observed in the extract group compared to the training group and extract (PConclusion: Results of this study indicated that aerobic training with cinnamon extract more than any of them alone effects on reduction IL-1ß. But the effect of the combination of aerobic training and cinnamon extract on lipocalin-2 requires further investigation.
Research Paper I Open Access I Released under (CC BY-NC) license
A Mohammadnabi; MR Asad; M Shariatzadeh joneydi; A Hoseini
Abstract
Aim: The purpose of this study was the acute effect of Isostar Sport-drink on some of the Cardio-respiratory parameters in young soccer players a single bout of exhausting activity. Method: Statistical sample of this study was 10 young soccer players who were the players of Sepad Tehran Club with ...
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Aim: The purpose of this study was the acute effect of Isostar Sport-drink on some of the Cardio-respiratory parameters in young soccer players a single bout of exhausting activity. Method: Statistical sample of this study was 10 young soccer players who were the players of Sepad Tehran Club with average age 17.10± 0.78, high 176.50± 4.85 cm, weight 67.46±5.69 kg and the body mass index 21.63±1.42 kg/m2 which have been voluntarily chosen. The subjects take a progressive protocol which has been simulated to run on a treadmill, and during the protocol, Gas Analyzer was used to measure physiological parameters including the VO2max, vo2, vco2, RER, VO2AT, VO2AT/VO2. Then, one week later, the subjects returned and drank a Isostar Sport drink, and executed the protocol. Results: The results of this study showed metabolic parameters (VO2max, vo2, vco2, (RER), VO2AT, VO2AT/VO2) have no significantly changed after consuming Isostar beverage. Conclusion: we can concluded that the use of Isostar beverage on one occasion, does not lead to a significant change in VO2max،vo2،vco2, (RER)، VO2AT، VO2AT/VO2 ratesand athletes should be wary to use this sport drink.
