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Ehsan Zarian, Abbas Bahram, Mehdi Sohrabi,
Volume 1, Issue 1 (9-2011)
Abstract
The
purpose of present research was to answer to this question that how attentional
instructions and increasing frequency of movement impress on relative phase
stability in coordination bimanual movements? Participants (N=14) practiced in
phase and anti phase under internal and external attention and increasing
frequency. In acquisition phase apply external v. internal attention and after
each trial KP were given to subjects. On delayed retention test no render
specific instruction. The results revealed that no difference between internal
and external attention about affect on phase stability on in phase and anti
phase patterns. Also increase frequency of movement lead to higher variability
in anti phase and higher stability on in phase.
Karim Beglar, Mohammad Hossein Alizadeh, Mohammad Khabiri, Farshid Tahmasebi, Benyamin Ghelichpoor Dashliboroon,
Volume 3, Issue 6 (12-2013)
Abstract
Introduction: Injury is common incident in most of the sports and games. There are many reasons for the factors incident of injuries, the psychological aspect can be considered as one of them. Method: The aim of present study was to examine the relationship between psychological skills and severity of injuries in football players of Tehran premier league. 108 players of Iran premier league participated in the study. Research data was collected by injury report form and Ottawa mental skills assessment tool-3. Pearson correlation test at significant level of 95% were used for analyzing the data. Results: 90.7 % of them resulted in 1-3 days missing of match or training and there is inverse and significant relationship between psychological skills and its subdivisions (P=0/0001) and severity of sport injuries in football players. Conclusion: The findings of present study show that having high levels of psychological skills helps premier league players to handle stressful situations in sports through enhancing self-confidence and other psychological factors confronting harmful psychological factors such as stress and anxiety and lead to decrease in injury severity.
Zahra Nezakat Alhosseini, Saleh Rafiee, Sadegh Nasri,
Volume 13, Issue 26 (12-2023)
Abstract
The aim of this study was to investigate the effect of observational practice on anticipation and visual search behavior in handball players in handball defense positions. The participants were 23 male handball players aged 16-19 years, who were members of Isfahan national youth and Pishgaman team. The players viewed clips of handball defense positions using eye-tracking glasses. They verbally expressed their anticipation about the outcome of the ball position during the pre-test. The players were divided into two groups: gaze behavior, which was observed (observation of output clips of eye-tracking glasses) and observation group, which observed only handball clips. Then the two groups were retested after 10 sessions of 45 minutes. The results of repeated measures analysis of variance and Muchly test with sphiricity assumed illustrated that the anticipation accuracy and visual search behavior of the gaze behavior group in the post-test were significantly better than the observation group. Defending handball players in the 3×3 position compared to the other two positions (2 × 2, 1 × 1), focused on the background and kinematics of the attacking player to anticipate and identify the attacking player pattern.
Maryam Rakhsati Araqi, Esmail Nasiri, Sadegh Nasri, Mohammad Reza Esmaili,
Volume 14, Issue 28 (12-2024)
Abstract
In this study, the effectiveness of student-centered and coach-centered coaching styles on sport self-efficacy and athletic performance of female gymnasts was studied. The research method was quasi-experimental and a pre-test-post-test design was used. The statistical population was female gymnasts aged 11-14 in Tehran. The sampling method is one-stage clusters and the research sample is 40 female gymnasts who were selected based on Cochran's formula. Variable assessment tools included Sport Self-Efficacy Questionnaire (Sahraeian et al 2016) and a researcher-made sports performance questionnaire. After the pre-test, the groups performed the athlete-centered and coach-centered training protocol separately for two months and two days a week in one-and-a-half-hour sessions. Covariance analysis was used to test the hypotheses. Findings in the pre-test stage showed that sport self-efficacy and athletic performance of female gymnasts in the student-centered group were significantly higher than the coach-centered group (P <0.05). It is concluded that student-centered coaching style is more effective in increasing Gymnasts' sports self-efficacy and athletic performance compared to coach-centered, and coaches are suggested to pay special attention to student-centered exercises in the gymnastics girls' training program.
Ph.d Sayed Kavos Salehi, Ph.d Farzaneh Hatami, Mis Fatemeh Norouzi,
Volume 100, Issue 100 (10-2020)
Abstract
The aim of the present study was to examine the effect of cyberspace dependence on the explicit and implicit motor sequence learning task. For this purpose, the number of 48 subjects aged 16 to 19, were selected as available and was divided in four groups (12 people) including cyberspace dependent - explicit motor learning, cyberspace dependent - implicit motor learning, normal - explicit motor learning and normal - implicit motor learning. Kimberly Young's internet addiction test was used to distinguish between normal and cyber-addicted people, and SRTT software was used to check participants' learning. The data were analyzed using the mixed analysis of variance test with repeated measures. The findings showed that cyberspace dependence had a significant effect on the explicit and implicit motor sequence learning task, so that there was a significant difference between the two groups of cyberspace dependent and normal peers in the explicit and implicit learning motor sequence task. Normal people performed better in both explicit and implicit conditions than cyberspace dependent participants. According to the findings, it is suggested to reduce the excessive use of virtual space in the students by creating energetic movement programs in schools.
