درخت حوزه‌های تخصصی

Purpose: Sleep quality decreases with age, and as a result, sleep complaints are common in the elderly, especially for inactive people with Alzheimer's disease. Therefore, the aim of this study was to investigate the relationship between respiratory indices and sleep quality in active and inactive elderly women with Alzheimer's disease. Method: In this research, 24 elderly women with Alzheimer's disease (with an average age of 72.3±7.25 years, height 158.23±6.12 cm and weight 70.23±8.12 kg) voluntarily and after obtaining consent, they participated in two active (12 people) and inactive (12 people) groups. Respiratory indices were measured using a Micro Lab Spirometer. The Pittsburgh questionnaire was used to check sleep quality. Independent t-tests and Pearson's correlation coefficient were used to analyze the data. Results: The average score of sleep quality in the active group was significantly lower than the inactive group (p=0.013). Also, the parameters of expiratory volume with pressure in the first second (p=0.046), maximum voluntary ventilation (p=0.021), forced vital capacity (p=0.033), strong expiratory flow 25 to 75% in the active group was significantly higher than the inactive group. Conclusions: According to the results, it seems that sports activity can be an effective factor in improving the quality of sleep and the functioning of the respiratory system in patients with inactive Alzheimer's disease.

the present study investigates the prevalence of emotional abuse among professional athletes by their coach in Mashhad city of Iran. the current study is applied research, about 40 professional retired athletes have participated voluntarily in individual sports (swimming and martial arts) and team sports (handball and basketball). The semi-structured interviews were used to gather the data and descriptive statistics were used to analyze the data. the results have shown that about 70 percent of participants have experienced various emotional abuse by their coach over years of playing professional sports and the maximal statistics belonged to criticism and reproach variables but just a few of them had reacted to their coach emotional abuse that entailed concentration disorders, performance and motivation decline, and ability obtainment issues. the results have shown that a high percent of athletes have experienced emotional abuse by their coach that encompassed many psychological and performing damages. Therefore, it is needed to train athletes’ preventable and resistant methods and the way of conveying these offensive behaviors to officials in order to reduce the damages of applied emotional abuse at athletes.

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.

Purpose: The purpose of the present research was to investigate the effect of eight weeks of progressive resistance exercise and a subsequent detraining period on the indicators of muscle fiber shortening (FS%) and the relative wall thickness (RWT) of the left ventricle in low-mobility women. Method: This semi-experimental study was conducted in a field-laboratory setting. A total of 32 sedentary women, who met the criteria for participation and were able to engage in the exercise protocol, were randomly assigned to two groups: 1) Resistance training group (16 participants), and 2) Control group (16 participants). Anthropometric characteristics, body composition, and structural indices such as left ventricular muscle fiber shortening percentage (FS%) and relative wall thickness (RWT) were measured using an echocardiography device at three intervals: before the start of training, at the end of 8 weeks of training, and after a 4-week detraining period. The training protocol was implemented over 12 weeks, consisting of 8 weeks of training with three sessions per week, followed by 4 weeks of detraining. Data were analyzed using independent t-tests and repeated measures analysis of variance (ANOVA) at a significance level of p < 0.05, using SPSS version 21. Results: The results showed a significant difference in FS% between pre-test and post-test measurements for both the experimental and control groups (p < 0.05). Additionally, a significant decrease in FS% was observed in the training group during the detraining period (p < 0.05). Similarly, a significant change in RWT was found between pre-test and post-test measurements in both groups (p < 0.05), and significant changes in RWT were also observed during the detraining period in the training group (p < 0.05). Conclusion: Based on these findings, it can be concluded that 8 weeks of resistance training led to beneficial changes in the structure and function of the heart in sedentary women. However, the 4-week detraining period resulted in negative effects on these adaptations. Therefore, it is recommended that individuals engage in regular and structured resistance training to maintain these positive adaptations.