درخت حوزه‌های تخصصی

The athlete's skills and psychological state often influence success in sports performance. The current study aims to explain the performance in paintball competitions based on cognitive resilience and cognitive regulation of emotion. The study participants included all paintball players participating in national paintball competitions (the year 2022), including 17 teams of 7 players, a total of 116 people. In order to investigate the psychological components affecting the athletes' performance, Conner-Davidson Resilience Scale (CD-RISC) and Cognitive Emotion Regulation Questionnaire (CERQ) were used. After completing these questionnaires, IBM SPSS Statistics version 26 was used to analyze the data. Pearson's correlation coefficient and stepwise regression were used to analyze the data. The results showed a significant relationship between resilience scores, the overall score of cognitive emotion regulation, and the scores of 9 emotion regulation strategies with the players' performance in the paintball competition (P≤0.05). Players who achieved better results in tournaments, scored higher on the resilience factor. Also, players who achieved better results in matches had higher scores on emotion regulation strategies like self-blame, positive refocusing, refocus on planning, positive reappraisal, and putting into perspective, and lower scores on the acceptance, rumination, catastrophizing and other-blame strategies. This study showed that cognitive resilience and emotion regulation could be used as predictors of success and winning positions in paintball competitions.

The aim of the present research was to evaluate the effectiveness of a therapy package for weight control based on Acceptance and Commitment with the Matrix Approach and Transcranial Direct Current Stimulation (tDCS) on Food Craving and Physical Activity in overweight individuals. The research Design was a quasi- experimental with pretest and posttest and An Active Control group. For this purpose, 40 persons were selected via availability sampling and in regard to include and exclude criteria. The instrument of the study were Baecke's Physical Activity Questionnaire (1982) and Food Craving Questionnaire-Trait of CepedaBenito (2000, FCQ-T). The experimental group received the intervention package in 12 online group sessions of 2-hour weekly sessions and 8 individual sessions of tDCS AR/CL stimulation (2Ma for 20 minutes) and the control group received only 8 individual tDCS sessions of AR/CL stimulation (2Ma for 20 minutes). The results of between- within group mixed analysis of variance showed that the combined intervention package of weight control based on Acceptance and Commitment with the Matrix Approach and Transcranial Direct Current Stimulation (tDCS) had a significant effect on physical activity and cravings of overweight people in comparison with tDCS alone. According to the results, it can be concluded that the therapeutic package of the present study can be a good option to increase Physical Activity and reduce Food Craving.

According to Van de Vliet (2012), the importance of psychological aspects of sport for athletes with disability are the same as its medical aspects. The purpose of the present study was to investigate the psycho-social challenges of Iranian Paralympic athletes, using a qualitative phenomenological study. In so doing, 60 paralympic athletes (40 male and 20 female) who were selected through purposeful sampling were included in the study. Semi-structured interviews were used to collect data. The collected data were analyzed through thematic analysis. After preliminary processes, Paralympians’ challenges were categorized in two themes: psycho-social challenges (communicational, Family and financial issues) and psychological challenges (sport anxiety, concentration, depression, Sleep problems, ADHD, PTSD), each category covers several codes. paralympic athletes reported that they experienced considerable emotional highs and lows in Professional sports atmosphere. They showed how psychological functioning included protection of self, combining life with elite sport and functional relationships. The importance of conceptualizing paralympians’ challenges is reflected in the identification of different issues and problems. Recognizing and understanding the kinds of challenges that paralympians’ experience may help design the services required to support the athletes through this elite sporting experience.

The aim of this study was to evaluate Sustained Attention Performance and Reaction Time in Shooters of National Rifle, Pistol and Trap Teams and compare these groups with each other. In this causal-comparative study, 33 players of men national teams, including 11 from rifle team, 11 from pistol team and 11 from trap team were selected by available sampling method and evaluated using continuous computer performance test. Covariance method was used to compare the variables of continuous performance test including (number of errors and reaction time) between the three groups. The results showed no significant difference in the performance of sustained attention and Reaction Time between the three groups ( P > 0.05), despite the superiority of the trap group in both components. Based on the findings of the present study, the performance of sustained attention and reaction time in the shooters of the national teams of rifle, pistol and trap is equally important. These findings can be justified by the similar nature of different shooting disciplines in the use of sustained attention and reaction time.

The purpose of this study was to investigate the effective factors on web browsing (Cyberloafing) of human resources in sport organizations. The research method was descriptive-correlational and based on structural equations and also the data were collected by questionnaire. The statistical population of the study consisted of all employees of the Ministry of Sport and Youth, among whom, 237 were randomly selected as sample and finally 225 (93.74%) questionnaires were analyzed. A 14-question questionnaire was used to collect the data. Finally, the collected data were analyzed in two parts: descriptive and inferential statistics using SPSS and LISREL software. The results showed that the predictive power of this model based on the sum of variance of the three factors was 61.52%. Also, there is a significant priority among the cyberloafing components, according to which the attitude of employees is in the first priority, descriptive norms in the second priority and perceived barriers in the third priority. Considering the way employees use the internet and web browsing, the need for more in-depth research and attention to these types of HR behaviors become more apparent.