جستجوی مقالات مرتبط با کلیدواژه "3" در نشریات گروه "تربیت بدنی"

This study aimed to investigate the effects of short-term supplementation with coenzyme Q10 (CoQ10) on markers of oxidative stress and inflammation, specifically superoxide dismutase (SOD), malondialdehyde (MDA), and interleukin-6 (IL-6), following exhaustive aerobic exercise in judo athletes.

Sixteen male judo athletes participated in a randomized, double-blind, crossover study in which they received CoQ10 or placebo. Participants received CoQ10 supplementation for 30 days after completing a first bout of exhaustive aerobic exercise, then completed a second bout of exhaustive exercise. Blood samples were collected before exercise, immediately, and 24 hours after exercise during the two bouts to measure levels of SOD, MDA, and IL-6. These markers were analyzed using enzyme-linked immunosorbent assay (ELISA) and spectrophotometric techniques.

CoQ10 supplementation significantly increased SOD levels after 30 days of supplementation compared to the placebo group (p<0.05). MDA and IL-6 levels were significantly reduced during the recovery period after CoQ10 supplementation (p<0.05). These findings suggest that CoQ10 effectively enhances antioxidant defences and reduces lipid peroxidation and inflammation induced by exhaustive aerobic exercise.

CoQ10 supplementation improves oxidative stress and inflammatory responses in judo athletes after exhaustive aerobic exercise. CoQ10 may be an effective nutritional strategy to enhance recovery and reduce exercise-induced cellular damage in high-intensity sports

Inflammatory factors are known as an important mechanism in the occurrence of type 2 diabetes and metabolic diseases; while regular exercise has anti-inflammatory effects and suppresses low-grade systemic inflammation in type 2 diabetes. Therefore, the present study was conducted with the aim of investigating the effect of combined exercises with stevia supplementation on serum levels of asprosine, glucose and insulin resistance in obese women with type 2 diabetes.

60 women with type 2 diabetes voluntarily participated in the study and were randomly divided into four groups. The subjects of the exercise group participated in selected sports exercises for 12 weeks and three sessions a week. One gram of stevia extract was taken daily, 15 minutes before the main meal. Fasting blood glucose, HbA1C, insulin resistance index and asprosin serum levels were measured.

The results of analysis of variance showed that there is a significant difference between the effects of different interventions in the serum levels of asprosine, blood glucose levels, HbA1C and insulin resistance. Combined exercises with stevia supplementation led to a decrease in the serum levels of asprosine in the exercise, supplement, exercise+supplement groups (p<0.001). But these changes were more significant in the exercise + supplement group.

It seems that both intervention methods of combined exercises and stevia supplementation are effective methods in controlling blood sugar and reducing inflammation, and the combination of these two methods is more effective in controlling glycaemia in patients with type 2 diabetes.

Achieving peak performance in sports is a multifactorial phenomenon that includes genetics, nutrition, physiology, biomechanics and psychology. Nowadays, in addition to sports training, the use of supplements is used to increase the performance and improve the efficiency of athletes. Beetroot juice (BRJ) food supplement, as a natural source rich in nitrates that occurs naturally in vegetables, when nitrates are consumed, they are broken down by anaerobic bacteria in the oral cavity by the enzyme nitrate reductase and then in the stomach to Nitric oxide (NO) is converted. NO is a messenger molecule that has the ability to improve vascular function, mitochondrial and respiratory efficiency, glucose homeostasis and muscle contraction.The purpose of this study is to investigate the effect of beet juice supplementation on some performance factors in athletes.The research method of this study aims to investigate the effect of beetroot juice supplementation on some performance factors in athletes.

The present study showed that beetroot juice supplementation increases aerobic and anaerobic capacity, increases muscle performance and endurance, increases antioxidant capacity, reduces pressure perception, and lowers blood pressure and heart rate in athletes.

Consuming beetroot juice supplement is a good way to improve sports performance and achieve positive training adaptations.

The purpose of this research was to investigate the interactive effect of eight weeks of endurance-resistance training and taurine supplementation on the levels of aldosterone, renin and angiotensin in diabetic male Wistar rats.

In this experimental study, out of 50 male Wistar rats, 40 male Wistar rats after induction of diabetes by injecting 55 mg/kg of streptozocin dissolved in citrate buffer (0.05 M with pH = 4.5) were divided into 5 groups. Diabetic exercise (n=10), diabetic supplement (n=10), exercise-supplement group (n=10), diabetic control (n=10) and healthy control group (n=10) were included. One-way ANOVA was used to compare the average of variables in different groups, and Bonferroni's post hoc test was used to determine the difference between groups. The significance level of the tests was considered P>0.05.

The results of the test showed that at the end of eight weeks, there was a difference between the serum levels of aldosterone in the groups of exercise-diabetic, diabetic supplement, exercise-diabetic supplement, diabetic control and healthy control, and renin and angiotensin in the groups of diabetic exercise, diabetic supplement, exercise-diabetic supplement, and diabetic control. and healthy control there is a significant difference (P=0.0001).

Eight weeks of endurance-resistance training and taurine supplementation caused a significant decrease in aldosterone, renin, and angiotensin in male Wistar rats treated with streptozocin. Therefore, probably, the combination of endurance-resistance training with taurine supplementation can be suitable for controlling high blood pressure, which is one of the complications of diabetes on renal hormones.

Antioxidant supplements can mitigate muscle damage and oxidative stress induced by sports activities. So, in the present study the potential impact of tartaric acid on inflammatory indicators, muscle damage, and anaerobic capacity among young male soccer players was investigated.

Twenty-four young male soccer players (average age: 23.94±1.87 years; weight: 74.37±5.77 kg; maximum oxygen consumption: 48.01±6.80 ml/kg/min) were randomly allocated into two homogenous groups (matched for VO2max) receiving either tartaric acid (n=12) or a placebo (n=12) at a dosage of 20 mg per kilogram of body weight. Blood samples were collected 24 hours prior to and 10 minutes and 24 hours after a RAST test. Statistical analysis was conducted using a 2 x 3 repeated measurements analysis of variance at a significance level of 0.05 employing SPSS statistical software version 24.

The supplement group exhibited significantly higher average power performance and peak anaerobic power compared to the placebo group. Moreover, the group × time interaction showed significance in MDA and TAC indices (P<0.05). However, no significant difference was observed between the two groups in IL-6, lactate, creatine kinase, and lactate dehydrogenase levels (P<0.05).

The study suggests that tartaric acid consumption contributes to enhanced peak and average anaerobic power, increased total antioxidant capacity, and reduced inflammation and oxidative stress resulting from anaerobic power tests. These effects are likely attributed to the polyphenolic and antioxidant properties of tartaric acid.

Success in weight loss is the dream of all obese people, and its achievement depends on many factors. The purpose of this study was to determine the relationship between weight loss and physical activity، sleep quality of obese and overweight people after participating in a diet program.

The research method was descriptive-correlation. The statistical population consisted of obese and overweight people who referred to Minoo Zeraati Nutrition Clinic in Rasht. The statistical sample of 420 people included 378 women with an average age of 39.59+11.15 and BMI of 30.88+3.06 and as well as 42 men with an average age of 38.11+45.35 and BMI of32.75+4.2. The participants were selected using an available sampling method. Data collection was done through Beck physical activity questionnaires, Pittsburgh sleep quality and a question about the amount of weight loss after a normal diet (50%carbohydrate, 20%protein and 30%fat). Statistical analysis was conducted using Pearson's correlation coefficient test and stepwise regression in SPSS-23 software.

The results showed that there was a significant and positive correlation between the level of physical activity and the amount of weight loss (r=0.139,p=0.004) and there was a significant and negative correlation between sleep disorder and the amount of weight loss (r=-0.104,p=0.033).

The results showed that higher physical activity level and better sleep quality were associated with more weight loss in obese and overweight people after participating in the diet program. Therefore, paying attention to the mentioned factors will increase the probability of success in losing weight with diet.

The current research was done with the aim of presenting the organizational culture model of the Ministry of Sports and Youth. The research method is exploratory in terms of practical goals, and in terms of data, and in terms of nature, in the qualitative dimension, the foundation data is self-emerging, and in the quantitative dimension, it is a cross-sectional survey. The statistical population of the qualitative part includes university professors and experts in the field of human resources management, and in the quantitative part, it consists of all male and female managers of the Ministry of Sports and Youth in the number of 1076 people.The sampling method in the qualitative part was purposeful, snowball type, and 15 experts were selected, and we reached theoretical saturation. In the quantitative part, 280 were selected based on Morgan's formula for determining the size of the sample. In the current research, after the open and axial coding of the measurement tool, it was sent in the form of a set form and sent to the experts for selective coding and validated, and based on this, a researcher-made questionnaire was designed and distributed among the randomly selected statistical sample. . Then, the collected data was analyzed using descriptive and inferential statistics, and in the end, 5 dimensions, 22 components and 142 indicators were calculated for this model.The dimensions identified in a homogeneous structure support the model structures of a concept under the title of organizational culture model of the Ministry of Sports and Youth.

Active aging is an effective way to improve the quality of life and well-being of the older adult. In line with the needs of today's society in Iran, the purpose of this study is to analyze and understanding the neighborhood environment from the perspective of the older adult and also to explain the status of physical activity of the older adult in the neighborhood in Tehran. The present study is a qualitative and interpretive study that uses the strategy of phenomenological research to explain and interpret the essence of the older adult experience of physical activity at the neighborhood level and deep knowledge of this phenomenon. The population in this study is the older adult with physical activity in the neighborhood of Ekhtiarieh in Tehran. Finally, 24 people were interviewed. The obtained data were encoded and analyzed using Colaizzi method. Based on the data analysis, one main theme (Sociopetalness of active older adult in the neighborhood) and four sub-themes (active social self in the neighborhood, Playability and social participation for more physical activity in the neighborhood, more social interaction for physical activity in the neighborhood) was obtained. According to the obtained results, it can be concluded that in addition to the physical features of the neighborhood environment, the cultural and social context governing the local communities can change the behavioral relationships in favor of becoming more active.

The purpose of this research is to provide strategies to connect sports science faculties with science and technology incubators and parks and its consequences. The research method was qualitative and data collection was performed by interviewing and reviewing the literature. The research sample was determined theoretically and after conducting 14 interviews, the communication strategies between the faculties of sports sciences with incubators and science and technology parks were identified. According to the results, the 205 open codes obtained in this research were divided into two parts: strategies and consequences. The strategies included 5 main categories and 15 sub-categories. 5 main categories of strategies including; Specialization, supporting sports ideas, creating and strengthening the spirit of entrepreneurship, innovation and ideation, promoting interaction between the faculty, incubator centers and the community and creating an entrepreneurial cafe in the faculty. The results included 4 main categories and 9 subcategories. The main categories of outcomes include; Creation and development of sports job opportunities, having the support of incubator centers and science and technology parks, secure income generation, improving the quality of life in the society. Therefore, it can be suggested in order to establish a relationship between the Faculties of Sports Sciences and these centers, it is necessary to teach innovation, support ideas and create a creative atmosphere in the faculties. It can also turn the needs of sports and the community into ideas as new projects and motivating students.

This research is applied from the perspective of purpose and descriptive-survey research from the perspective of data collection method. The statistical population included customers of sports complexes in Tehran. The samples were determined based on Cochran's formula of 384 people using cluster random sampling method. For data collection, the Internet Advertising Assessment Questionnaire, Chang and Wang (2019), respectively. Chang and Wang Electronic Word of Mouth Advertising Questionnaire (2019). Questionnaire of disapproval of the expectation of the judge and colleagues (2017). Behavioral Tendency Questionnaire from Hyun, Kim and Lee Questionnaire (2011). used. SPSS and Smart pls software were used to analyze the data. Based on the results of electronic advertising and word of mouth, it has an effect on the behavioral tendencies of customers (0.712) and (203), respectively, which is significant according to the rate of T (9.550) and (2.483). And disapproval of expectation as a mediator affects the relationship between electronic advertising and behavioral tendencies of customers, so disapproval of expectation as a mediator affects the relationship between word of mouth and customer behavioral tendencies. Therefore, with the increase of advertising, customers' behavioral inclinations will also increase and the tendency to prefer and use products and services will also increase. Therefore, it is suggested that in presenting advertisements, points such as increasing the quality of services at the time of submitting the request and need, awarding prizes, facilities and price discounts, and using new and non-repetitive techniques to advertise services should be considered.

The purpose of present study was to study of Service quality in Tehran sport clubs based on SERVQUAL model. Statistical population of the research was all Tehran sport clubs clientele (about 100000 persons). On the basis of Morgan table, 400 persons were random-cluster selected. In order to achieving the required data, researcher made questionnaire was used that its validity was confirmed by the 15 experts and its reliability was studied in a preliminary study with 30 subjects and was confirmed by Cronbach’s Alpha of 0.92. In order to achieving to the research purposes, the descriptive and inferential statistics methods such as Kolmogorov-Smirnov, one sample T-test, Friedman test, Man-whitney U test, Wilcoxon test, and binominal test were used. The results taken from this research show that there is a significant difference between Expectations and perceptions. Priority of the perceptions was as follows: Politeness and trust (MR =3/22, 2χ=39/56,P<0.05). Also Priority of the Expectations was as follows: capability of confidence (MR =3/24, 2χ=41/401,P<0.05). Regarding results of the research, sport clubs managers must increase your Service quality based on clientele's attitude and try on its.