Hossein Samadi; Jalil Moradi; Mohammad Sohbatiha
Abstract
Introduction: Reactivity to stress is the basis of individual differences in mental, emotional, and physiological responses to stressful situations and is a valid indicator for current and future adverse health outcomes. Despite the importance of stress reactivity and its consequences, the conventional ...
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Introduction: Reactivity to stress is the basis of individual differences in mental, emotional, and physiological responses to stressful situations and is a valid indicator for current and future adverse health outcomes. Despite the importance of stress reactivity and its consequences, the conventional physiological calculation of reactivity is time-consuming, costly, and invasive. This study aimed to determine the validity and reliability of the Persian version of the Perceived Stress Reactivity Scale for Adolescent Athletes (PSRS-AA).
Methods: The research method was a descriptive-correlational type. The statistical sample was made up of 290 athletes (130 girls and 160 boys) of different sports fields with an age range of 12 to 20 years who participated in the present study using the available sampling method. First, the correctness of the translation of the Persian version of the questionnaire was confirmed using the back-translation method, and then confirmatory factor analysis based on structural equation modeling was used to determine the validity of the questionnaire, and Cronbach's alpha coefficient was used to determine the internal consistency.Results The results showed that the goodness of fit index and the comparative fit index are higher than 0.9. Cronbach's alpha coefficient for perceived stress reactivity scale for adolescent athletes and its dimensions were obtained above 0.7 (acceptable index value).Conclusion: Based on the results, based on the results, the Persian perceived stress reactivity scale for adolescent athletes has good and acceptable construct validity and internal reliability, and it can be used as a valid and reliable tool.
Mohamad Hosein Ghahramani; Mahdi Sohrabi; Alireza Saberi Kakhaki; Mohammad Ali Besharat
Abstract
Impulsivity features of individuals affect their movement patterns when learning sports skills. Therefore, this study examined the effect of different levels of motor impulsivity on learning basketball basic skills. 3 groups of boys aged between 10 and 12 who were selected according to motor impulsivity ...
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Impulsivity features of individuals affect their movement patterns when learning sports skills. Therefore, this study examined the effect of different levels of motor impulsivity on learning basketball basic skills. 3 groups of boys aged between 10 and 12 who were selected according to motor impulsivity levels participated in a basketball skills training course along with a control group (the subjects were randomly selected). To evaluate their performance,AAHPERD and Hann basketball pass tests were used in thepretest, posttest, retentionandtransfer phases. The results of covariance and analysis of variance in posttest (P=0.0001) andretention test (P=0.011) inAAHPERD basketball pass showed a significant advantagein this test along with increased motor impulsivity levels.However,better performance were along with decreased impulsivity levelsinHann pass task. The observed differences among the groups were not statistically significantin the transfer phase(P=0.112). It can be concluded that different levels of motor impulsivity is one of the main factors affecting sport skills learningwith regard to the speed-oriented and accuracy-oriented skills.
