درخت حوزه‌های تخصصی

In this research, we investigated the mediating role of emotion regulation within the relationship between neuroticism and participation motivation. In this cross-sectional study, a total of 261 employees (98 males agerange = 18-60 years) belonging to Iran Oil Company participated and completed questionnaires of big five factors of personality (Costa and McGree, 1989), cognitive emotion regulation (Garnowski and Craig, 2006) and participation motivation (Gill et al., 1983). Data were analyzed by structural equation modeling. The results indicate that neuroticism has indirect effects on participation motivation through adaptive emotion regulation and maladaptive emotion regulation strategies. The results suggest that emotion regulation strategies may be a significant mediator in the neuroticism- participation motivation link. One’s difficulty in regulating emotions might be an underlying mechanism through which high neuroticism decreases the participation motivation and health behavior. The study implies that the assessment of emotion regulation strategies should be included in interventional programs aimed at achieving employees’ sport participation.

This descriptive research was conducted using the systematic review method to investigate the position of digital leisure in Iran. The statistical population of this study consisted of all the theses, dissertations, and articles published in Iran. After searching, screening, and the qualitative evaluation of the research studies, 283 research were selected for the study. A researcher-developed data collection form was used to review the studies. The results indicate that the process of the production and publication of research studies in the area of digital leisure goes back to 2001, and it has been in progress since then. 84% of these research studies were conducted in the 2010s. The geographical distribution of these studies includes 25 provinces across Iran. 66% were journal articles and the remaining 34% were in the form of theses. 77% of the research studies adopted the quantitative approach, while 23% were qualitative and mixed-method studies. The analysis and the interpretation of the findings showed that a large body of theoretical literature and the main concepts used in the research emphasizes the interdisciplinary nature of digital leisure and its special application in sports, education, culture, social sciences, economy, entertainment, and psychology. As a result, all three groups of managers, producers, and researchers must approach this area more than ever before from an applied perspective for the proper utilization of the cultural, economic, educational, and athletic aspects of digital leisure.

Background: Adropin is a newly identified bioactive protein that is important in energy hemostasis and vascular endothelial function. Aim : The purpose of the present study was to investigate plasma levels of adropin and nitrite/nitrate (NO), in elderly treated hypertensive subjects at baseline and follow-up after 6 weeks of high-intensity interval training (HIIT). Material and Methods: Forty-four elderly participants with treated hypertensives (age 61.09±5.82 years, 25 male and 19 female, BMI= 25.7±1.31 kg/m 2 ) were randomly assigned to either the high-intensity interval training (HIIT) or control group. The HIIT group received an intervention consisting of 10 intervals of 1.5 min at 85% to 90% of their heart rate reserve (HRR), separated by 2 min of rest at 50% to 55% of their HRR, in three sessions per week for a duration of six weeks. Plasma levels of adropin and NO were measured using enzyme-linked immunosorbent assay. The statistical analysis was performed by two-way repeated ANOVA to determine differences between groups and Pearson’s correlation coefficient to determine correlation. Results: The results showed that, following the six-week HIIT intervention, the plasma levels of adropin and NO significantly increased when compared to both control group ( P = 0.0016) and the baseline ( P = 0.0003) measurements. Peak oxygen consumption was increased after exercise training compared to the control group ( P =0.005). Δ adropin in the HIIT group showed a positive correlation with increased Δ NO (r= 0.707, P = 0.002) and Δ VO 2 peak (r= 0.836, P = 0.001), and a negative correlation with Δ DBP (r= 0.643, P = 0.025) and Δ SBP (r= 0.691, P = 0.013). Conclusions: The study findings suggests that HIIT can enhance both blood pressure and cardiorespiratory fitness. The observed increase in plasma level of adropin may have contributed to reduction of blood pressure by promoting nitric oxide production.