List of subject articles Sport Nutrition


    • Open Access Article

      1 - The Effects of Coenzyme Q10 Supplementation with Two Consecutive Soccer Games on Stress Oxidative and Muscle Injury Markers in Male Collegiate Soccer Players
      Ehsan Arabzadeh
      Background: This study aimed to investigate the effect of coenzyme Q10 consumption for fourteen days on the response of some indicators of oxidative stress and muscle damage following two consecutive football matches in college players Materials and Methods: for this p Full Text
      Background: This study aimed to investigate the effect of coenzyme Q10 consumption for fourteen days on the response of some indicators of oxidative stress and muscle damage following two consecutive football matches in college players Materials and Methods: for this purpose, 24 football players (with an average age of 20.08±12.1 years, a weight of 63.28±65.1 kg and a maximum oxygen consumption of 53.12± 0.98 ml /per /kg of body weight) The three groups were studied over a fourteen-day period. The control group did not receive these supplements and exercise activities, but the experimental groups included the placebo group (300 mg aspartame) and the coenzyme Q10 group (300 mg ubiquinone supplement) during the course in addition to receiving a placebo or supplement the two 90-minute football matches were less than 48 hours apart. Then, according to the research plan, blood samples were collected from the subjects in two stages 24 hours before and after the period and MDA, LDH, CK and AST indices were measured. Dependent t-test, one-way analysis of variance and Tukey's post hoc test were also used. Results: The results showed a significant difference between serum coenzyme Q 10 supplementation with serum MDA (P = 0.000) and AST (P = 0.006) concentrations from two consecutive football matches, while LDH levels (P = 0.970) and serum CK (P = 0.911) did not change significantly. Conclusion: Overall, the results show that supplementing coenzyme Q10 before and during a two-week match can have anti-oxidant benefits, so it can be recommended to college soccer players. Manuscript Document
    • Open Access Article

      2 - Effect of beta-alanine supplementation on carnosine amount and muscle strength of the upper and lower extremities of bodybuilding athletes
      Amir Abbasi Seyed Kazem Mousavi Sadati
      Background: The purpose of the present study is to investigate the effect of one session of exhaustive activity with supplementation of beta-alanine on the level of carnosine and muscle strength of upper and lower extremities of bodybuilding athletes. Materials and Met Full Text
      Background: The purpose of the present study is to investigate the effect of one session of exhaustive activity with supplementation of beta-alanine on the level of carnosine and muscle strength of upper and lower extremities of bodybuilding athletes. Materials and Methods: Twenty bodybuilders were randomly divided into two equal groups of 10 who were taking supplemental beta-alanine and placebo. The experimental group consumed beta-alanine for 21 days and the placebo group received dextrose. The level of carnosine and muscle strength of the upper and lower extremities were measured before and after supplementation. Blood sampling was done before and after supplementation after session of exhaustive workout. Paired t-test and ANCOVA were used for data analysis using SPSS 21 software at a significant level (p <0.05). Results: The results of paired t-test showed that in all three variables of lactate, carnosine and growth hormone only in the beta-alanine group, a significant change was observed between pre-test and post-test (P <0.05). And amount of these variables in the post-test showed a significant difference compared to the pre-test. Also, ANCOVA test results indicated that there was a significant difference between the two groups of beta-alanine and placebo in all three variables (P <0.05). Conclusion: Beta-alanine supplementation with an exhaustive exercise session increases the level of carnosine in blood and hence increases the fatigue tolerance of bodybuilding athletes and ultimately improves the muscle strength of the upper and lower extremities of athletes and bodybuilders. Therefore, bodybuilders can use this supplement to improve their performance. Manuscript Document
    • Open Access Article

      3 - Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males
      Ebrahim Fallah
      Background: The purpose of the present study is to investigate the effect of Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males Materials and Methods: We examined 35 resistance-t Full Text
      Background: The purpose of the present study is to investigate the effect of Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males Materials and Methods: We examined 35 resistance-trained (1y) male participants (25±2y, 79.8±8.9 kg, 16.1±5.53% body fat) for 9-wk of L-carnitine supplementation in conjunction with resistance training on exercise performance, blood lactate, and exercise-induced oxidative stress. Randomized, placebo-controlled, double-blind treatment of a (1) no intervention, no supplement Control (CON, n=12), (2) maltodextrose Placebo (PLA, 2 g/d, n=11) or (3) L-carnitine (LCR, 2 g/d, n=12). Exercise performance, post-exercise blood lactate (BL) and oxidative stress markers were analyzed at weeks 3, 6, and 9. The PLA and LCR groups followed a specific resistance training program (4 d/w, upper body/lower body split) for a 9-wk. Data were analyzed by GLM and presented as mean (SD) or change (95% CI). Primary outcomes were total lifting volume for the bench (BP) and leg press (LP). Results: The results a significant increase in BP lifting volume at wk-6 (139 kg, 95% CI 49.1, 230) and wk-9 (238 kg, 95% CI 132, 343) for LCR. Similar results were observed for LP. We also observed a significant increase in Wingate mean power (63.4 W, 95% CI 30.5, 96.3) and peak power (239 W/kg, 95% CI 104, 374) at wk-9 for LCR as well as a significant reduction in post-exercise BL levels and oxidative stress responses. No differences were observed in body composition. Conclusion: These findings indicate that LCR supplementation improves exercise performance and attenuates the blood lactate and oxidative stress response to resistance training. Manuscript Document
    • Open Access Article

      4 - The effect of 8 weeks of aerobic training and resveratrol consumption on the indicators of metabolic syndrome in overweight women
      Masoumeh Hosseini Sahar  Esmaeli Dorani
      Background: Metabolic syndrome is a set of risk factors for cardiovascular disease and type 2 diabetes. The purpose of this study was to investigate the effect of 8 weeks of aerobic training and resveratrol consumption on the indicators of metabolic syndrome in overweig Full Text
      Background: Metabolic syndrome is a set of risk factors for cardiovascular disease and type 2 diabetes. The purpose of this study was to investigate the effect of 8 weeks of aerobic training and resveratrol consumption on the indicators of metabolic syndrome in overweight women. Materials and Methods: In this quasi-experimental study, 32 women with metabolic syndrome with body mass index of 25-29 / 29 were purposefully selected and randomly divided into four groups (8 people): aerobic training, resveratrol supplementation, training + supplementation and control. The training protocol was performed on a treadmill for 8 weeks with 3 sessions of 60 minutes per week, with an intensity of 75-60% of the heart rate. The supplement groups took one capsule containing 400 mg of resveratrol daily. Blood sampling was performed before the start of the research protocol and 48 hours after the last training session. Analysis of covariance and Bonferroni post hoc test were used (P ≤ 0.05). Results: The results showed that aerobic training with supplementation led to a significant decrease in waist circumference, blood pressure, fasting blood sugar, triglycerides, total cholesterol and LDL and a significant increase in maximal oxygen consumption (P = 0.001). Conclusion: Based on the results of the study, taking resveratrol supplementation along with aerobic training can have a positive effect on the indicators of metabolic syndrome. It is recommended to use aerobic training and resveratrol supplement to improve the physical condition of overweight women. Manuscript Document
    • Open Access Article

      5 - Effect of Iso–Caloric Sago and Soy Supplementations during 90 Minutes Steady–State Cycling on Subsequent 20–km Cycling Time Trial Performance in the Heat
      Daniel Tarmast Asok Kumar   Ghosh Chee Keong  Chen
      Background: In Asian countries, like Malaysia, India, and Thailand, sago (SA) is frequently used as daily food. The use of local daily food as supplements over expensive drinks is cost–effective for athletes. Hence, SA (carbohydrate) could be recommended as affordable n Full Text
      Background: In Asian countries, like Malaysia, India, and Thailand, sago (SA) is frequently used as daily food. The use of local daily food as supplements over expensive drinks is cost–effective for athletes. Hence, SA (carbohydrate) could be recommended as affordable nutrition ingestion. The purpose of this study was to determine the effects of SA, Soy (SO) protein, Sago+Soy (SS) supplementation (combination of carbohydrate and protein), and placebo (PL) during moderate–intensity cycling on subsequent 20–km time trial performance. Materials and Methods: The participants were 12 young male well–trained cyclists from Malaysia. They pedaled at 60% of VO2max for 90 min followed by a 20–km time trial (TT) in the heat. At 20 min intervals during cycling at 60% VO2max, participants consumed either SA, SO, SS, or a PL. The SA, SO, and SS feedings provided 7.5% SA, 7.5% SO, and 7.5% SA+1.5% SO respectively to drink iso–caloric beverages with an estimated energy level ~300 kcal. The average speed and cadence were also recorded during the TT. Results: Time taken for TT for SA, SO, SS, and PL were 42.8±1.8 min, 46.3±2.6 min, 42.7±2.3 min, and 43.2±1.8 min respectively. The TT performance, speed, and cadence of the cyclists did not exhibit any significant differences among the three trials. Conclusion: These data indicated that consumption of sago and soy, and iso–caloric SS (coingestion of sago and soy) during steady–state ride failed to improve the subsequent cycling performance in the heat. Manuscript Document
    • Open Access Article

      6 - Long-term effect of endurance training with myoclinic diet and calorie control on fat profile of overweight women
      Maryam  Rasouli Saniabadi Abdolrasoul   Daneshjoo Alireza  Eizadi
      Background: The aim of this study was to investigate the long-term effect of endurance exercise combined with myoclinic diet and Calorie restriction on the lipid profile of overweight women. Materials and Methods: The method of the present study was semi-experimental w Full Text
      Background: The aim of this study was to investigate the long-term effect of endurance exercise combined with myoclinic diet and Calorie restriction on the lipid profile of overweight women. Materials and Methods: The method of the present study was semi-experimental with a pretest-posttest design. For this purpose, 45 women referred to the Tehran Region 1 Fitness Club with a body mass index (BMI) between 25 and 30 and in the age group of 35 to 45 years voluntarily participated in this study. Subjects were homogeneously divided into three groups of 15 people based on weight, height and body mass index, including the endurance training group with myoclinic diet, the endurance training group with Calorie restriction and the endurance training group alone. Endurance exercise was three sessions per week for eight weeks. The program, 30 minutes of aerobic exercise, starting at 65% of maximum heart rate and increasing by 5% every two weeks until it reached 80% of maximum heart rate in the last week. The recommended diet for the endurance training groups with the Myoclink diet and the endurance training group with the Calorie restriction was given. Endurance training was also asked not to change their normal diet. Subjects' lipid profiles were measured before and after the training protocol. One-way ANOVA use for data analyses. Results: The results showed that in overweight women endurance training combined with myoclinic diet and endurance training combined with Calorie restriction improve the lipid profile (lowering total cholesterol, LDL cholesterol and triglyceride levels and increasing HDL) more than endurance training alone. (P ≤ 0.05) ؛ Also, there was no significant difference between the effect of endurance training with myoclinic diet and endurance training with Calorie restriction on improving lipid profile. (P ≥ 0.05) Conclusion: Combining endurance training with myoclinic diet or calorie control can be effective in improving the fat profile. Manuscript Document
    • Open Access Article

      7 - Effect of Whey protein supplementation on GH-1 and IGF-1 in taekwondo Men athletes
      Mobina   Aghajani Abazar  Teymouri Elhamalsadat  Zeinali Alireza   Mohammadi Shadmehr  Mirdar Harijani
      Background: Improving athletic performance has been one of the issues that athletes have long faced. Hundreds of sports supplements for athletes have been introduced to the market in recent years. The overall aim of the present study was to investigate the interactive e Full Text
      Background: Improving athletic performance has been one of the issues that athletes have long faced. Hundreds of sports supplements for athletes have been introduced to the market in recent years. The overall aim of the present study was to investigate the interactive effect of whey supplementation and resistance training on growth hormone and IGF1 levels in Men athletes. Materials and Methods: The method of the present study was a quasi-experimental and clinical trial. 24 male working bodybuilders (mean age 26.4 ±5.3, height 173.9 ± 7.7, weight 92.3 ± 11.6 and body mass index 28.8 ± 5.4), randomly divided into 2 complementary groups + Practice and practice were divided. Before and after 8 weeks of combined exercise program and whey supplementation (50 grams daily in the supplement group), selected body composition indicators of insulin-like hormone and plasma growth hormone and physical fitness factors including lower and upper limb muscle strength, speed, endurance Upper torso muscle, and agility were assessed. To compare the results before and after supplementation and exercise in each group, paired t-test was used, and to compare the results of the two groups with each other, an independent t-test was used using SPSS software version 20 and the significance level was P≥0.05 was considered. Results: In both groups, after eight weeks of training and consumption of whey protein, the levels of growth hormone and insulin-like growth factor 1, muscle strength, and endurance increased significantly (P <0.05), but in comparison between groups in the post-test, there was a significant difference. Not observed (P <0.05). Conclusion: Whey supplementation probably does not affect growth hormone and insulin-like growth factor-1 levels and fitness factors in Men athletes. Manuscript Document
    • Open Access Article

      8 - The effect of supplementation of HMB (beta-hydroxy betamethyl butyrate) and plyometric exercises on performance and body composition of elite parkour athletes in Tehran
      Abdolrasoul  Daneshjoo Motahare Ghane Morteza   Ahmadi
      Background: Parkour is a sport with alternating energy system in which some items such as lower body explosive power, muscular strength, production of high levels of power in the shortest period of time and high agility are of particular importance.Considering the anabo Full Text
      Background: Parkour is a sport with alternating energy system in which some items such as lower body explosive power, muscular strength, production of high levels of power in the shortest period of time and high agility are of particular importance.Considering the anabolic and anticatabolic properties of beta-hydroxy beta-methyl butyrate (HMB), the aim of this study is to investigate the effect of taking this supplement along with plyometric training on body composition, agility and standing jump power of parkour athletes. Materials and Methods: For this purpose, forty parkour trained men (19-26 years old) have been chosen and randomly categorized into four groups: HMB group, Plyometric group, HMB and Plyometric group and control group. The training program was performed for plyometric and plyometric-HMB group, three sessions per week for eight weeks which took one hour each Session. Also HMB and plyometric-HMB groups consumed three grams of HMB per day for eight weeks. Body composition analysis and Illinois test and standing jump power test were conducted before and after eight weeks of plyometric training and HMB supplementation. Research data was analysed by ANCOVA statistical test. Results: The results of statistical analysis of each group showed that performing eight weeks of plyometric training significantly improves the standing jump power, agility and body fat percentage of the parkour athletes (p <0.05). Conclusion: These findings indicate that plyometric training increase the standing jump power and agility and reduce the body fat percentage in parkour athletes, but taking HMB supplement along with plyometric training only helps to burn more fat in the parkour athletes. Manuscript Document
    • Open Access Article

      9 - The effect of aerobic training and complementary of vitamin D + omega-3 on metabolic syndrome indices in obese women
      Leyla   Ahmadpour Reza Rostami Kimia   Moeeni Afshari
      Background: Metabolic syndrome is a set of risk factors for cardiovascular disease and type 2 diabetes. Vitamin D plays an important role in the treatment and prevention of metabolic syndrome. The purpose of this study was to investigate the effect of aerobic training a Full Text
      Background: Metabolic syndrome is a set of risk factors for cardiovascular disease and type 2 diabetes. Vitamin D plays an important role in the treatment and prevention of metabolic syndrome. The purpose of this study was to investigate the effect of aerobic training and complementary of vitamin D + omega-3 on metabolic syndrome indices in obese women. Materials and Methods: In this quasi-experimental study 40 women (26/4±7/6 yrs. 32/26±1/78kg/m2 ) Volunteered and they were randomly divided into four groups of 10 persons (aerobic training, vitamin D + omega-3 supplements, aerobic training + vitamin D + omega-3 supplements and control groups) . Aerobic training consisted of 12 week, 3 sessions of 1 hour each session at 60% of maximal oxygen consumption (1.6 km of treadmill walking). In supplement groups, supplementation was performed daily with 1000 IU vitamin D and 1000 mg fish oil. Blood samples were taken before and after the research protocol. Data were analyzed using covariance analysis test. Results: 12 weeks of aerobic training plus supplementation significantly reduced lipid profile, fasting blood glucose, insulin concentration, waist circumference and diastolic blood pressure and the maximum oxygen consumption was significantly increased (p≤0/05). Conclusion: Aerobic training is a safe and effective way to improve metabolic health. Also, combining vitamin D and omega-3 fatty acids to modify metabolic syndrome-related indicators can increase the beneficial effects of training. Manuscript Document
    • Open Access Article

      10 - Effect of resistance training and nanocurcumin supplementation on the expression of FNDC5 and PPARƔ genes in rat muscle tissue
      Amir Maleki Masoumeh Hosseini
      Background: Irisin is released from the Fndc5 protein in muscle cell through physical activity and effects on metabolism through browning of white fat. The purpose of this study was to the effect of resistance training and supplementation of nanocurcumin on the expressi Full Text
      Background: Irisin is released from the Fndc5 protein in muscle cell through physical activity and effects on metabolism through browning of white fat. The purpose of this study was to the effect of resistance training and supplementation of nanocurcumin on the expression of genes of FNDC5 and PPARɣ rat muscle tissue. Materials and Methods: In this experimental study, 32 rats were randomly divided into four groups (Control, resistance training, nanocurcumin, resistance training + nanocurcumin). The training groups program included 4 weeks, 3 days a week from climbing on a stepladder. Nanocarcmine (80 mg / kg) was given gavage in complementary groups for four weeks daily. FNDC5 and PPARƔ gene expression were measured using the RT-PCR method. Data were analyzed using one-way ANOVA with a significant level of P≤0.05. Results: The results showed that resistance training and supplementation of Nanocarcmine significantly increased the expression of the gene of FNDC5 and PPARɣ in muscle tissue of rat (P <0.05). Conclusion: It seems resistance training with nanocurcumin supplementation may stimulate secretion of FNDC5 & PPARƔ from muscle, that has a key role in the metabolism of adipose tissue and the conversion of white tissue to brown fat tissue. Manuscript Document