درخت حوزه‌های تخصصی

Background: High-velocity low-intensity actions result in reduced hemodynamic responses. Additionally, eccentric actions are associated with reduced hemodynamic and metabolic responses. Aim: This study aimed to investigate acute hemodynamic, hematological, and electrocardiographic responses to high-velocity low-intensity concentric resistance exercise (HVLICRE) and low-velocity high-intensity eccentric resistance exercise (LVHIERE) in healthy young adults. Materials and Methods: In this study, 16 healthy young men were divided into two groups (HVLICRE: 40% 1RM, LVHIERE: 80% 1RM). The exercise protocol consisted of five sets of 10 repetitions, with 90 sec of rest between the sets and a two-second interval between actions. For data analysis, repeated measures ANOVA, one-way ANOVA, and Bonferroni's post hoc test were performed at a significance level of P ≤0.05. Results: LVHIERE led to greater RPE ( P ≤0.05), compared to HVLICRE. Also, LVHIERE was associated with a significant increase in the activity of the sympathetic nervous system and a significant decrease in the parasympathetic nervous system as compared to HVLICRE ( P ≤0.05). Conclusion: HVLICRE and LVHIERE produced similar effects on blood glucose, serum lactate, hematocrit, systolic and diastolic blood pressure and heart rate. LVHIERE can be investigated as part of the strategy of rehabilitation programs in future studies.

Purpose: Functional Movement Screening Test (FMS) is a tool that has the ability to determine a person's potential for the possibility of suffering from musculoskeletal abnormalities and sports injuries. FMS tests include seven functional movement tests that evaluate trunk, central strength and stability, neuromuscular coordination, asymmetry in movement, and flexibility. The purpose of this research was to determine the norm of the functional motor screening test in the male handball players of the Sepahan club in Isfahan. Method: The method of collecting information is cross-sectional and in terms of practical purpose. For this purpose, 30 male students aged 14-16 from Sepahan Handball Club of Isfahan were evaluated by performing 7 FMS tests. Findings: The norm of FMS test in 14-year-old students was 14.39±1.66, in 15-year-old students it was 15.85±1.47, and in 16-year-old students it was 15.29±1.21. Therefore, it can be stated that the FMS scores in these people are in a better condition compared to related studies in this age group. Also, the test scores separately showed that 75% of this population does not have enough stability in the central part of the body. Discussion and conclusion: In many sports activities, the movements of the upper and lower limbs need to have sufficient stability in the central area, if there is no stability in this area, energy transfer does not take place well. Since this age group is at the beginning of official sports competitions and considering that the clinical usefulness of FMS is limited by the lack of Norm index in Iran, sports medicine specialists and sports team coaches can evaluate the value of Norm scores to diagnose and identify people. at the risk of physical deformity and injury at different ages and plan bodybuilding and corrective exercises based on it

Nowadays, the prominent role of the customer in the global arena reveals the urgent need for proper management of customer relationships. This has led to a new shape of CRM known as Social CRM. This study analyzes data from 384 customers of sports facilities in the East Azerbaijan province of Iran using the structural equation model (SEM) approach. The findings revealed that the SEM used is a strong theoretical model for social CRM capabilities, customer-oriented management system (COMS), and social media technology use (SMTU). Moreover, the social CRM capabilities have a significant impact on customer relationship performance. From an academic perspective, this study helps to understand the experiences of customers of sports facilities during their interaction on social media and focuses on long-term customer relationships. From a sports management perspective, sports facilities should use the insights created through social CRM capabilities to guide effective sports marketing strategies toward customer relationship performance.

This research aims to study the factors affecting gender equality in Iraqi football setting. The current research is based on a quantitative approach. The research population consisted of the employees of the football federation, players, and football coaches in Iraq. Based on Morgan's table, 384 people completed a researcher-developed questionnaire through random sampling. The content validity of the questionnaire was confirmed by eight professors of sports management. Convergent and divergent validity and composite reliability were checked and confirmed by the PLS software. Findings showed patriarchal culture, gender stereotypes, the variable of gender inequality in broadcasts, the biased performance of social media in gender equality, gender inequality in budgeting and financial support, the variable of public support for men's football, and inequality in accessing to sports facilities and equipment have significant effects on gender equality in Iraqi football setting. However, the findings reveal that family restrictions do not have significant effect on gender equality in Iraqi football setting.