درخت حوزه‌های تخصصی

The current study aims to explain a communication model for quantum leadership, productivity and empowerment of personnel in the Ministry of Sport and Youth using Interpretive-Structural Modeling approach. The research population included all of the personnel in the Ministry of Sport and Youth, and 269 persons were selected randomly as the research sample. The research tool was questionnaires adopted from the literature for collecting the research data. Twelve sport management experts and Cronbach’s alpha method, respectively confirmed the validity and reliability of the questionnaires. SPSS software and interpretive-structural modeling (ISM) approach were applied to analyze the research data. The results indicated the optimal level in the quantum leadership, as well as personnel productivity, and empowerment. Based on the results, an increase in the level of quantum leadership in the Ministry of Sport and Youth raises the level of personnel productivity, and empowerment. In addition, an increase in the personnel empowerment level in the Ministry of Sport and Youth increases the level of personnel productivity.

Background: The traditional approaches to strategic planning in the face of uncertainty of the environment have no inflexibility, and there is no appropriate response to it. Strategic Foresight systems are welcomed by creating a strategy in a highly competitive environment. Aim: The purpose of the study was to explain the effective demographic model of sections quad Iran's sports based on Strategic Foresight to end in 2036. Materials and Methods: The present research is in terms of applied purpose, qualitative nature and implementation path in foresight methods, environmental scanning and survey. The statistical population were faculty members of sports management with associate degrees and higher who were selected by combining sampling. Results: The experts approve the research model with GOF= 0.509. Also, development of academic disciplines in sport for all, land-use planning system in professional sport, per capita family income in championship sport, land-use planning system in educational sport as demographic key drivers were identified. Conclusion: The research model can be effective as a guide in anticipation of the future of sections quad Iran's sports and provided the basis for envisioning the future state and effective decision-making.

Purpose: Skin is the most important organ of the body and maintains its integrity is critical in good health. Severe skin damage is life-threatening and repairing restores its tissue integrity and delay in it endangers health. According to the importance of wound healing and the fact that not treated wounds may decrease quality of life, many studies have investigated the effect of some natural and chemical substance on the length and quality of wound healing to find out beneficial interventions that rapidly and economically treat it. This review aimed to describe the physiology of cutaneous wound healing and some negative and positive factor with a focus on exercise. Methods: An electronic search without any time limitation was performed on the PubMed, Google scholar and web of science databases to find published articles in English. The keywords were wound healing, exercise, and physiology. According to relation to subject, similarities, and differences 48 articles were selected and reviewed. Results: wound healing is a complicated physiology process that consists of four consecutive overlapping stages. Disruption in each stage disturbs wound healing. Many chemical and herbal compounds are used to speed up wound recovery due to their anti-inflammatory property. Exercise is one of the effective factors in wound healing and many studies evaluated effect of different protocol of exercise on it. The results of studies show that aerobic exercise due to its anti-inflammatory and antioxidative effect is a beneficial method in shortening the length of wound healing, especially in aged, fat, and diabetic individuals. Conclusion: Moderate intensity aerobic exercise as a complementary medicine is a good intervention in the treatment of impaired and chronic wounds.

Background: Limited research has investigated the use of chamomile as an antioxidant supplement in team sports . Purpose : The aim of this study was to investigate the effect of chamomile extract on antioxidant indices in young female futsal players. Methods : 20 young female futsal players (Average age: 22.08 ± 5.03 years, weight: 54.4 ± 8.62 kg, and body mass index: 20.56 ± 2.6 kg/m2) were divided randomly into two groups, experimental group (10 people) and control group (10 people). The experimental group consumed 1500 mg/day of the supplement for one week, while the control group received a placebo. Both groups were nutritionally controlled during this period. After the end of the intervention period, two simultaneous futsal matches were held for two groups (two teams of 5 players in each match). Anthropometric characteristics were evaluated in resting conditions and biochemical markers were measured before the intervention, immediately after the competition, and 30 minutes after the competition. Data analysis was performed using the repeated measurement variance test. The level of significance was considered at P<0.05. Results : The results showed a significant increase in SOD levels (P<0.05) and a significant decrease in CAT levels (P<0.05) immediately after the competition in the supplement group, but this significance was not seen 30 minutes after the competition. Conclusion : One-week consumption of chamomile improves antioxidant defense in young female futsal players. Conducting studies with long-term follow-up to confirm these findings should be considered.

Background: Sports and physical activity are important for the healthy growth and development of children. However, various contextual and interfering factors can hinder the development of sports and physical activity in children.   Aim : The purpose to identify the contextual and interfering factors affecting the development of sports and physical activity in children. Material and Methods: The present study adopts a combinatory approach, where the first stage is qualitative and exploratory, and the second stage is descriptive-survey. In the qualitative stage, 16 experts in the field of children's sports were interviewed using purposive sampling, and the collected data were analyzed using MAXQDA 2020 software. In the quantitative stage, SPSS software version 26 was used for exploratory factor analysis and t-tests, while PLS 3 software was used for confirmatory factor analysis. Results: The results of this study suggest that there are five contextual factors-personal and family, infrastructure and equipment, supportive, economic and managerial as well as five interfering factors-human resources, organizational, media activities, control and evaluation, and legislation. Furthermore, the results of confirmatory factor analysis indicated that the research measurement model was validated. Conclusions: In conclusion, it can be acknowledged that by considering the identified factors in the development of sports and physical activity in childhood, it is possible to address some of the challenges in the field of children's sports.