درخت حوزه‌های تخصصی

Purpose: The aim of this research was the effect of 4 weeks of interval training and Inspiratory Muscle Training (IMT) on the initial recovery of respiratory muscle strength in inactive people. Method: This research was semi-experimental. The statistical sample of this research consisted of 30 healthy and inactive students of Shahrood University of Technology with an average age of 30±10 years. Subjects were randomly divided into 3 groups (IMT, Interval and Sham exercises). The parametric test of one-way analysis of variance with repeated measurement and dependent t-test with 95% confidence was used with SPSS 26 softwar. Results: Inspiratory muscle strength showed a significant increase in IMT and interval training groups (P<0.05). Also, the time to return to the initial state of respiratory muscle strength decreased significantly in all three groups (P>0.05), the largest decrease was related to the IMT and sham exercise groups, and the interval exercise group experienced a smaller decrease than the other two groups. Conclusions: It seems that IMT training is more effective than interval training in increasing the strength of respiratory muscles and improving the return to the initial state of the strength of these muscles.

The purpose of this study was to provide a model for supporting elite female athletes in championship sports. To achieve the research aim, 200 people answered the questionnaires using purposive sampling method. The researcher-developed questionnaire was prepared through studying the theoretical background, semi-guided interviews with sports management professors and elite female athletes through an exploratory process, and exploratory factor analysis was used to categorize the 46 items into nine factors. The extracted constructs were found to be both valid and reliable based on confirmatory factor analysis by LISREL software and Cronbach's alpha. Results of the study indicated that the present questionnaire was a suitable tool to assess the support for elite female athletes. Besides, the final research model indicated that financial support was the first priority from the respondents’ perspective while government support was the last priority according to them. Moreover, all the fitness indices of the model for supporting elite female athletes and its aspects had good fitness which confirmed the model. Based on the results of the present study, it is suggested that the research model and the priority of its factors be considered for policy-making in the field of women's championship sports. 

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.