مطالب

Background: Plyometric training is defined as a quick, powerful movement involving a system of reactive exercises and an eccentric contraction, followed immediately by an explosive concentric contraction. Aim : This study aimed to determine the effect of plyometric and aerobic training on peak power and performance in female elite rowers. Materials and Methods: Sixteen female elite rowers with a minimum of 1 year’s competitive rowing experience were recruited to perform six weeks of plyometric or cycling endurance training for 30 min before practice on the water three days per week. Rowing performance was assessed through a 500-m rowing time trial (TT), while peak rowing power (PR) was evaluated by over three maximal trials of 15 s on the rowing ergometer. The recorded value for peak power was the highest wattage observed during the 15-s period. All statistics were performed using commercially available software (SPSS v. 23, Armonk, NY). Pre-planned t-test comparisons were used to determine significance at baseline in changes within both groups. Results: The results showed 500-m TT performance significantly improved for the plyometric group ( P < 0.05) but not for the endurance group ( P > 0.05). Moreover, PR was considerably higher in the plyometric group in post-test than endurance training. Conclusion: These results suggest that plyometric can improve rowing performance in female elite rowers, and rowing coaches should continue using this form of training. Coaches can perform plyometrics in conjunction with other strength training methods or as a warm-up before beginning rowing-specific training.

Ecotourism is a tool for achieving the goals of sustainable development, because it offers similar solutions to current problems. Iran is one of the most attractive countries in the world, which is among the top countries in the world in terms of climatic diversity and archeological and civilizational monuments, but unfortunately, in terms of ecotourism attraction and income, it does not have a worthy position. With coherent and systematic planning, the country can be saved from economic stagnation and dependence on oil, and the ground can be prepared for more employment and preservation of national reserves and resources. At the same time, ecotourism has the highest efficiency and effectiveness in using natural and cultural capabilities, which, while using it efficiently and creating conditions for employment and income generation, has the least negative impact on the environment and is a suitable tool for its development. It is in developing countries. For Iran, given its potential and actual tourism potential, the development of this industry can be considered as one of the appropriate options, despite the recent years and efforts in five-year plans based on the country's 20-year vision. Good activities have been done in this field, which in comparison with the increasing growth of world tourism, these activities do not seem to be sufficient at all, and in this regard, the city of Paveh, despite the various natural and cultural capabilities to properly exploit the gifts. And the benefits of this industry require proper attention, planning and investment, and efficient management in this sector. This research was conducted by descriptive-analytical method using a questionnaire and statistical analysis using SPSS software. The results showed that the tourism infrastructure conditions of Paveh city can not lead to the development of tourism in Paveh city at present and should provide more infrastructure services to think about tourism development and economic conditions resulting from tourism development is not good and basic plans should be created in this regard to It is possible to achieve the economic development of the region before the development of tourism. Also, marketing conditions have been able to lead to the development of tourism in Paveh city on average, but more efforts should be made in the field of advertising and marketing.