درخت حوزه‌های تخصصی

During the Covid-19 pandemic, the use of online sports programs became popular. The purpose of this study was to investigate the effect of eight weeks of online body balance program on anxiety, depression, and aggression of children with attention deficit/hyperactivity disorder (ADHD). Body balance is a sport based on yoga, tai chi, and Pilates. The present study was a semi-experimental and applied type of study. The participants of the present study were 30 volunteer children with ADHD who were divided into two experimental (15 people) and control (15 people) groups by random assignment method. Aggression, depression, and anxiety variables were evaluated by Bass and Perry questionnaire, Maria Kvas children's depression questionnaire, and Revised Children's Manifest Anxiety Scale. The experimental group performed online body balance training for 8 weeks (3 sessions per week for 60 minutes) online, and the control group did their current activities. In order to investigate intra-group and inter-group differences, repeated measures ANOVA at the error level of 0.05 was used by SPSS software. The results showed there was significant difference in the average level of symptoms of depression, anxiety and aggression in the pre-test and post-test stages (P≤0.05), between the two control and experimental groups (P≤0.05) and the interaction effect of time and group (P≤0.05). The results of Tukey's test showed that there was a significant reduction of these symptoms between the two experimental and control groups in the variables of depression symptoms (-5.500), anxiety symptoms (-5.133) and aggression symptoms (-13.133). Based on the results of this research, eight weeks of body balance training reduced depression, aggression and anxiety symptoms in 7-9 year old children with attention deficit/hyperactivity disorder. Therefore, the improvement of mental disorders caused by this disease in children following the body balance exercise program emphasizes the importance of using this intervention method for children with ADHD.

Spectators are the main element of football. Football, as a popular sport, has the capacity for the intimate involvement and intense emotional experiences of the spectators. But the large presence of spectators in one place increases the probability of critical situations. Therefore, the purpose of this study is to identify crowd crisis management (CCM) solutions in professional football and to select the best solutions in terms of functional priority with mix-method. In the qualitative part, the approach based on thematic analysis was used to identify the crowd crisis management solutions and in the quantitative part, the best-worst method (BWM) was used to determine the importance and weight of the identified factors. A semi-structured interviews with 21 experts and the implementation of the best-worst method, demonstrated that among the five categories of solutions related to CCM inside the stadium, control, and guide of spectators as the most important, and emergency medical services as the least important of solutions. Also, among the solutions for managing the crowd crisis outside the stadium, the staff training of the stadium is illustrated to be the most important and financial discipline the least important solution effective for controlling the crowd crisis. Therefore, it is suggested that organizers of the matches focus on solutions that lead to the accurate implementation of the roles and tasks of the groups involved in holding the match and the development of programs, policies and effective security measures to control the spectators.

The purpose of this study was to research the subjective experiences of an athlete during practice match competitions and to examine the potential usefulness of an adapted MAC intervention in addressing the emotional difficulties of the athlete. We investigated the usefulness of a 12-session MAC program altered for educational purposes and presented data as a case study. The case study suggested that the athlete experienced a multitude of anxiety while practicing match competitions; the athlete typically avoided these emotional difficulties and engaged in avoidant behaviors; an adapted MAC approach for educational purposes could be helpful to help the athletes accept private events, commit to performance-related behaviors, and engage more frequently to performance under pressure. More could be done to address the needs of athletes experiencing performance anxiety beyond the structure of our 12-session educational intervention. We concluded that the MAC-based intervention, to a certain extent, educated the athlete about how to meet the challenges of performance difficulties, commit to values-driven behavior, and exhibit behaviors that would potentially permit optimal performance.

The present study investigated the effect of eight weeks of training with a gyroscope on identifying the body position in space, the semi-dynamic balance on the ground, and Huber's device score. Two groups of 30 Air Force (IRIAF) pilots with an average age of 27 years, height of 178, and weight of 80 kg were randomly assigned to two training and control groups. The training group was exposed to eight weeks of training with the gyroscope device. The pre-test and post-test of the two groups were compared using videography, star test, and Huber's score using the statistical method of repeated measurement. In the gyro test, there was no significant difference in the detection angle of the body position in the air in any groups before and after the test. However, an increase in rotation speed was observed in the training group. In Huber's test, there was no significant change in the control group before and after. However, in the training group, an improvement in the score was observed, especially in the non-superior limb, as well as a decrease in the difference in the score between the two hands. Stars were not observed in any groups before or after the test. According to the results, it can be concluded that despite the non-significance of the difference in the subjects' ejection angle and position identification in the training group, it occurred simultaneously as the rotation speed increased