درخت حوزه‌های تخصصی

Purpose: Muscle flexibility is a component of physical fitness. Using traditional tools in muscle length evaluation tests creates challenges. Therefore, the use of smartphones and health-related software as an alternative method has become widespread. This study aimed to investigate smartphones' intra- and inter-rater reliability and validity for measuring hamstring muscle length. Method: In a blinded study design, two researchers measured hamstring flexibility through four types of tests on each of the 22 asymptomatic participants with a total of 44 lower limbs. The measurements were compared between the traditional goniometer method and the practical smartphone application method. The intraclass correlation coefficient (ICC) was used to evaluate the reliability of each smartphone measurement, and Bland-Altman analysis was used to check the measurement errors. The validity of the two methods was also investigated. Results: Intra- and inter-rater reliability (ICC≥0.8) were good to almost perfect. In intra-rater reliability, PSLR angle showed consistent imprecision; other tests were free of systematic error and measurement error. The inter-rater reliability revealed a constant error in the right leg's PKE angle. A good to excellent correlation (r = 0.817–0.699) was observed in all the measured values, indicating the two methods' validity. Conclusion: These findings support from intra- and inter-rater reliability and validity of both instruments when measuring hamstring muscle length.

Abstract This study aimed to investigate a relationship between creativity and emotional intelligence elements in sport organizations. The study population includes 250 Iranian participants who were serving in different sport organizations including 125 males (Mage = 52.8 years, SD = 6.2years) and 125 females (Mage =45.3 years, SD = 4.6 years). Three instruments have been used in this survey: (i) General information questionnaire (ii) Emotional Intelligence questionnaire (iii) Creativity questionnaires (RAUDSEPP). The findings achieved through emotional intelligence and creativity questionnaires demonstrated that men and women were different in some aspects of relationship between creativity and emotional intelligence elements. Positive relationship between creativity and all elements of emotional intelligence except between creativity and controlling emotion element have been found. Other findings discussed various aspects of emotional intelligence and creativity in both genders. We can conclude that cognitive and behavioral systems of men and women are functionally distinct; so, existence of conflict in relationship between EI and creativity in men and women participants in this study may be due to gender differences.

Background: Identifying the practice conditions that optimize the learning of motor skills is one of the main objectives in the area of human motor learning research. Aim: The present study aims to explore the effect of success criteria in high-error practice conditions on motor learning, self-efficacy, and mood states among female students. Materials and Methods: This practical quasi-experimental study was conducted in a field setting. The participants were 30 female students from Yazd University, selected through convenience sampling. Completing the consent form, the selected participants were randomly divided into three groups: high-error practice with a large target (n= 10), high-error practice with a small target (n= 10), and a high-error control group (n= 10). Then, mixed ANOVA was applied in order to test the hypotheses. Results: The results revealed that both of the large and small target groups significantly outperformed the control group regarding the difference in performance accuracy. Moreover, considering mood states, in the small target group, significant differences were observed in the calmness, happiness, and total mood state subscales, while in the large target group, significant differences were found in the vigor, happiness, depression, and total mood state subscales. In terms of self-efficacy, significant differences were observed in the level and power dimensions in small target group; however, the power dimension was the mere aspect revealing significant difference in the large target group. Conclusion: The use of success criteria in high-error practice methods is beneficial, and it is recommended to adopt this approach to improve accuracy and stability in the practice sessions.

The present research examines the relationship between metacognitive beliefs and anxiety sensitivity with conscientiousness of lifeguards. This is a descriptive-correlational research and has been carried out by the field method. The statistical population of the research included all female lifeguards in the east of the country and at different work levels (310 people). Next, according to the type of statistical population, the sample size was calculated using Morgan's table to the number of 150 people, and they completed the questionnaires of metacognitive beliefs, anxiety sensitivity and conscientiousness. Data were analyzed through Pearson correlation and multiple regression statistical tests simultaneously. The results showed that there is a significant correlation between metacognitive beliefs and anxiety sensitivity with conscientiousness (p≤0.05). Positive metacognitive beliefs have a positive and significant relationship with conscientiousness, while the relationship between negative metacognitive beliefs and anxiety sensitivity with conscientiousness is negative and significant. Since lifeguards should be at the peak of responsibility, knowing the issues that can negatively affect their conscientiousness can be a solution or suggestion to improve their performance. Therefore, according to the results of the research, it is suggested to discuss the psychological preparation of lifeguards, especially in the cognitive aspect. There should be more emphasis