List of Articles Soccer

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  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
  10.61186/jspac.19775.1.1.1
  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 More

  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 profile
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  2 - Cooperation in Multi-Agent Systems Using Learning Automata
  M. R. »hojasteh M. R. Meybodi
  Agents are software entities that act continuously and autonomously in a special environment. It is very essential for the agents to have the ability to learn how to act in the special environment for which they are designed to act in, to show reflexes to their environm More

  Agents are software entities that act continuously and autonomously in a special environment. It is very essential for the agents to have the ability to learn how to act in the special environment for which they are designed to act in, to show reflexes to their environment actions, to choose their way and pursue it autonomously, and to be able to adapt and learn. In multi-agent systems, many intelligent agents that can interact with each other, cooperate to achieve a set of goals. Because of the inherent complexity that exists in dynamic and changeable multi-agent environments, there is always a need to machine learning in such environments. As a model for learning, learning automata act in a stochastic environment and are able to update their action probabilities considering the inputs from their environment, so optimizing their functionality as a result. Learning automata are abstract models that can perform some numbers of actions. Each selected action is evaluated by a stochastic environment and a response is given back to the automata. Learning automata use this response to choose its next action. In this paper, the goal is to investigate and evaluate the application of learning automata to cooperation in multi-agent systems, using soccer server simulation as a test-bed. Because of the large state space of a complex multi-agent domains, it is vital to have a method for environmental states’ generalization. An appropriate selection of such a method can have a great role in determining agent states and actions. In this paper we have also introduced and designed a new technique called “The best corner in state square” for generalizing the vast number of states in the environment to a few number of states by building a virtual grid in agent’s domain environment. The efficiency of this technique in a cooperative multi-agent domain is investigated Manuscript profile
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  3 - Attribute Reduction Based on Rough Set Theory by Soccer League Competition Algorithm
  M. Abdolrazzagh-Nezhad Ali Adibiyan
  Increasing the dimension of the databases have involved the attribute reduction as a critical issue in data mining that it searches to find a subset of attributes with the most effectiveness on the hidden patterns. In the current years, the rough set theory has been con More

  Increasing the dimension of the databases have involved the attribute reduction as a critical issue in data mining that it searches to find a subset of attributes with the most effectiveness on the hidden patterns. In the current years, the rough set theory has been considered by researchers as one of the most effective and efficient tools to the reduction. In this paper, the soccer league competition algorithm is modified and adopted to solve the attribute reduction problem for the first time. The ability to escape the local optimal, the ability to use the information distributed by players in the search space, the rapid convergence to the optimal solutions, and the low algorithm’s parameters were the motivation of considering the algorithm in the current research. The proposed ideas to modify the algorithm consist of utilizing the total power of fixed and saved players in calculating the power of each team, considering the combination of continuous and discrete structures for each player, proposing a novel discretization method, providing a hydraulic analysis appropriate to the research problem for evaluating each player, designing correction in Imitation and Provocation operators based on the challenges in their original version. The proposed ideas are performed on small, medium and large data sets from UCI and the experimental results are compared with the state-of-the-art algorithms. This comparison shows that the competitive advantages of the proposed algorithm over the investigated algorithms. Manuscript profile
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  4 - The Effect of Tapering Period with and without Creatine Supplementation on Hormonal Responses of male football Players
  Ebrahim Fallah Pegah Hooshangi Mohmmad   Jahangiri
  10.52547/jspac.40182.3.7.23
  Background: The aim of this study was to examine the effects of a tapering period with creatine supplementation on hormonal responses of men football players. Materials and Methods: The study sample included 18 male soccer players of the first division league (mean ag More

  Background: The aim of this study was to examine the effects of a tapering period with creatine supplementation on hormonal responses of men football players. Materials and Methods: The study sample included 18 male soccer players of the first division league (mean age: 18.77 ± 1.26 years, height: 174.5± 5.77 cm, and weight: 64.07± 6.99 kg) that were in the specific conditioning period who were randomly divided into two equal groups: Taper alone (n=9) and Taper with creatine supplementation (n=9). The levels of blood hormonal parameters including testosterone, cortisol and testosterone to cortisol ratio (T/C) were measured before and after the tapering period (10 days). Paired t-test and independent T-test was used to examine the differences within and between groups, respectively. Results: The results showed that the cortisol levels in the post-test compared to the pre-test decreased significantly in both groups (p≤0.05) ; While, there was no significant difference in testosterone and T/C (p≥0.05). Also, no significant difference was observed in the levels of testosterone, cortisol and T/C between the two groups. Conclusion: The taper period can reduce the cortisol levels of male soccer players, but creatine consumption has no significant effect on the levels of cortisol, testosterone and T/C ratio in the taper period. Manuscript profile
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  5 - Sports Nutrition in Soccer: a short overview of dietary considerations for players
  Daniel Tarmast
  Recent evidence indicates that coaches in Iran closely monitor diet plans. It is recommended that a nutritionist maintain a long-term relationship with each athletics institute. This gap in nutrition knowledge and modifiable nutrition behaviors can be closed by establis More

  Recent evidence indicates that coaches in Iran closely monitor diet plans. It is recommended that a nutritionist maintain a long-term relationship with each athletics institute. This gap in nutrition knowledge and modifiable nutrition behaviors can be closed by establishing a nutrition teaching and evaluation tool for coaches and young athletes. An overview of soccer nutrition covers the nature of the sport, training, and how nutrition may enhance player performance and recovery. Soccer competitions require players to engage in acyclical and intermittent activity patterns spanning up to 13 kilometers. The limited muscle glycogen reserves are a crucial component of the interface between training, performance, and nutritional support. Diets rich in carbohydrates may optimize muscle glycogen, minimize net glycogen depletion, postpone tiredness onset, and improve soccer performance. However, it is more frequent for the players to take an excessive quantity of protein daily, promoting the myth that extra protein improves strength and performance. More extensive suggestions include that soccer players should take a high CHO diet consisting of nutrient-dense, complex CHO food sources. Thus, despite the precise physiological demands of soccer and the relationship between nutritional preparation and performance, soccer players' dietary habits are frequently marked by a need for more education and misguided traditions. As soccer players and coaches in Iran become more aware of the importance of sustaining optimal macronutrient nutrition, this article discusses potential barriers and various nutrition phases to consider during training, on the day of the competition, and after the competition. Manuscript profile