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

This study was conducted with the aim at investigating the sustainability of sport tourism in Guilan province from the perspective of sport tourists and the host community. The statistical population was all local residents and sport tourists who had traveled to Guilan province (cities of Fooman, Shaft, Lahijan, Talesh). 400 questionnaires were distributed and finally 392 questionnaires were completed. Descriptive statistics were used to analyze the data and radar models (AMOEBA) and Prescott-Allen barometer of sustainability were used to measure sustainability. The results showed that the level of sustainability of sport tourism in Guilan province in general in terms of the host community and sport tourists in all three components of sustainable development including economic (0.512), social, cultural (0.448) and environmental (0.449), is in the mode of "moderate sustainability" and is far from reaching the state of "sustainability". From the point of view of the host community, the economic dimension (0.493), the socio-cultural dimension (0.434) have moderate sustainability and the environmental dimension (0.386) is unsustainable. In terms of sport tourists, the economic dimension (0.532), socio-cultural dimension (0.463) and environmental dimension (0.513) have moderate sustainability. It is suggested that the officials have practical plans in order for the host community to enjoy the benefits of sport tourism, as well as to protect the natural environment.

The elastic properties and behavior of human body structure are potentially effective on perturbation control and force transmission and so could theoretically be considered as the determinant factors of musculoskeletal injury prevention. The purpose of this study was to determine the relationship between human body elastic behavior and musculoskeletal risk factors during unilateral landing. 30 young healthy men performed hopping and unilateral landing tests on a force plate and in front of a high-speed camera to quantify the elastic behavior and injury risk factors. Leg stiffness as one of the most important parameters of human body elastic behavior and time to stability, knee flexion and knee valgus as some injury risk factors were calculated and their relationships were determined by Pearson correlation test. There were some positive significant correlation coefficients between leg stiffness and initial and final knee flexion angle but there wasn't any relationship between leg stiffness and knee valgus parameters. Another important finding of this study was the positive significant correlation of leg stiffness and time to stability along with anteroposterior axis. According to the results, it seems although high values of leg stiffness is considered as an important factor to success in some movement performances like sprinting, actually it can disturb to adopt a correct landing technique and it can delay the anterior-posterior stabilization. Specific training method modifying the landing technique, regulating the leg stiffness and optimizing the body elastic behavior, can be effective on the prevention of lower body musculoskeletal injuries like ACL injury.

In the post-industrial era, one of the elements of sustainable development in anything country is knowledge-based corporations. In Iran country, special attention to the growth and prosperity of these companies, especially knowledge-based sports companies among policy makers has been paid too. One of the challenges for these companies to succeed in the field of sports is their continued growth and sustainability. In this regard, the qualitative approach and Grounded Theory, Strauss and Corbin method to identify the growth and sustainability factors of knowledge-based sports companies in Iran have been used. The study population consisted of faculty members, PhD students, knowledge-based companies, science and technology parks, sports and non-sport development centers, and industry experts consisting of 16 individuals who were selected using purposive sampling and snowball sampling. Finally, based on research findings, structural, governmental, Hard infrastructure, public-private cooperation policy making, were the main factors. Knowledge based sports Companies skills, political factors, financial and managerial factors including contextual factors and sports startup exhibitions and conferences to create creative ideas, corporate integrity, consultants, branding such as interferer factors were in this study. Facilitating regulation, expert manpower, and the creation of a specialized maternal institute were such procedures of this study that can help to employment creation, development and improvement of sport and the country's economic Sustainable growth under sanction.

One of effective factors on sustainability of sport enterprises is excising of intangible capitals such as intellectual capital. In fact, intellectual capital as the intangible assets of enterprises is a key factor for sustainable competitive advantage. In this regard, the purpose of this study is to effects of intellectual capital on sport enterprises sustainability.

The statistical sample was 323 person including sport entrepreneurs in production and services sectors. Research designed questionnaires was used and after confirming content and construct validity, reliability was obtained by Cronbach's (alpha) (.786 & .891). The research method was quantitative and based on structural equation modeling by LISREL 8.5. Fitness indices was obtained.

Result showed that there was positive and significance relation between intellectual capital and enterprise sustainability. Enterprises sustainability was determined about 40% by intellectual capital. In fact, there are a positive relationship between intellectual capital including human capital, relational capital, instructional capital and sustainability.

Since the human capital via change of structural capital and relational capital converts knowledge to competitive advantage, consideration to structure and environment and training of management and sport skills is needed. Key words: intellectual capital, sport, enterprise, sustainability.

The aim of this study was to compare the ground reaction forces and the time to achieve stability in healthy male athletes with functional ankle instability.

The statistical population was included of male athletes aged 18 to 25 years, of which 20 people (10 with normal foot structure, 10 people with ankle functional instability) were purposefully based on the criteria of this study. They were divided into two groups: healthy and with functional instability of the ankle. The desired variables were measured using two Kistler model force plates. The raw data were analyzed by Matlab and spss software version 21 at the level of P≤0.05 with Shapiro-Wilk and independent t-tests.

There was no significant difference between the peak variable of anterior-posterior forces and ground reaction force (internal-external) of healthy male athletes with ankle functional instability during the single-leg jump-landing task (P≤0.05) . However, there was a significant difference between the variables of ground reaction force (vertical force) (P = 0.014) and time to achieve stability (P = 0.044) of healthy male athletes with ankle functional instability during the single-leg jump-landing task. There is significance.

According to the results of the study, athletes with ankle instability suffer more ground reaction forces (vertical force) during landing and reach stability later than people with healthy ankles.

The aim of this study was to identify the dimensions of social entrepreneurship in sport to achieve sustainable sport development. The research method was qualitative and literature review and interviews were used to collect data and experts’ viewpoints. In addition, the convergence rates of participants towards indicators were evaluated by Delphi method. Statistical sample included sport management professors, entrepreneurship management professors and sport entrepreneurs who were selected purposively. According to the dimensions of social entrepreneurship, the indicators and opportunities for social entrepreneurship were identified as job creation, social changes by athletes, women's participation in sport, athletes’ solidarity with social exclusions, voluntary work in sport and charity activities. As there are certain indicators to determine a framework based on social benefit and values in the sport development, this article explained the indicators and dimensions of social entrepreneurship in sport and supported the participation to develop social capital, social change and to enhance the quality of life through social entrepreneurship in sport. So, given that one of the goals of sustainable sport development is social justice, equal opportunities for participation, social cohesion, improved quality of life and generally attention to social entrepreneurship, it is necessary to develop and spread the collaboration of sport institutions with other organizations such as Welfare Organization, Red Crescent Organization and Social Security Organization to develop those activities related to social entrepreneurship in sport and recreation.

The study of those factors facilitating sustainable entrepreneurship in sport according to cultural and ethnic values is important. The aim of this study was to develop sustainable entrepreneurship model based on Strauss and Corbin’s (1989) systematic model. Research method was analytical so qualitative methodology was used. Research strategy was Grounded Theory (GT). Participants included 24 subjects (sport management professors, entrepreneurship management professors and sport entrepreneurs). Sampling strategy was to select typical and acute cases. Content analysis of interviews and coding were used to analyze data. Results showed that entrepreneurial mindset and attitude could affect sustainable entrepreneurship process in sport considering involved institutions and environmental situation so that the economic, social and institutional outcomes could direct sport society towards sustainable development. It seems that the obtained strategies of this model including the support of government, the encouragement of media for sport entrepreneurship and the correct instruction of practical and entrepreneurial skills can help entrepreneurship, sustain businesses and achieve social and institutional goals in sport and society.

Age–related decline in muscle power may be an early sign of stability deficit and fall risk, even in nonfrail adults. This study examined the dose–depended effect of power training on stability performance in healthy elderly men. Eighty community– dwelling healthy elderly men (≥ 60 years) were randomized into 12 weeks of power training at 20% (LOW), 50% (MED), 80% (HIGH) of maximal strength, and a nontraining control (CON) group. Participants trained twice weekly using pneumatic resistance machines. Balance, muscle performance (power, strength, endurance, and contraction velocity) were measured. Power training significantly improved stability performance in participants who underwent power training compared to controls. Low intensity power training produced the greatest improvement in stability performance (Eta coefficient = 0.38). Power training improves stability, particularly using a low load, high velocity regimen, in elderlymen with an initial low muscle power and slower contraction. Further studies are warranted to define the mechanisms underlying this adaptation, as well as the optimum power training intensity for a range of physiological and clinical outcomes in elderly men with different levels of health status and functional independence.