Hamed Fahimi; Hassan Gharayagh zandi; Fazlallah Bagherzadeh; Ali Moghadamzadeh; Davood Homanian SharifAbadi
Abstract
Introduction: The purpose of the present study was to investigate the effect of strategic self-talk on the performance and visual attention of volleyball players.Methods: The current research was semi-experimental with a pre-test and post-test design with a control group. The participants of the present ...
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Introduction: The purpose of the present study was to investigate the effect of strategic self-talk on the performance and visual attention of volleyball players.Methods: The current research was semi-experimental with a pre-test and post-test design with a control group. The participants of the present study were 54 boy volleyball players, who selected as available. The participants randomly divided into five groups: Strategic self-tlk as instructional self-talk (N=10), motivational self-talk (N=11), instructional-motivational self-talk (N=10), motivational-instructional self-talk (N=11) and control (N=12). The self-talk intervention conducted for 12 weeks and three sessions per week. In pre-test and post-test, while performing the serve task, the serve score were recorded by the researcher and the gaze behavior of the participants was measured by the eye tracker. The collected data were analyzed using analysis of covariance and Bonferroni's post hoc test.Results: The results of the study showed that strategic self-talk has a significant effect on serve performance (P=0.0001) and the quiet eye duration (P=0.0001). The results of the Bonferroni test showed that instructional self-talk increased motor performance and increased the duration of the quiet eye. In addition, the combined groups that have used this instruction have increased motor performance and a longer duration of quiet eye. However, motivational self-talk has no effect on motor performance and the duration of quiet eye.Conclusion: The results obtained in the current research emphasize the importance of instructional self-talk on the performance and visual attention of novice volleyball players and supports the attention mechanism of self-talk.
Niloufar Zamani Fard; Daryoush Khajavi; Ahmad Ghotbi Varzaneh
Abstract
Introduction and Purpose: the current study was to examine the effect of quiet eye training on decision making, gaze behavior and tennis service skill learning.Methods: In this semi-experimental study, which was performed with a pre-test-post-test design with a 14-day follow-up period, ...
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Introduction and Purpose: the current study was to examine the effect of quiet eye training on decision making, gaze behavior and tennis service skill learning.Methods: In this semi-experimental study, which was performed with a pre-test-post-test design with a 14-day follow-up period, 30 novices male tennis players of Isfahan House with an age range of 20 to 30 were selected and those located in quiet eye training and control groups. In the pre-test phase, the participants performed 12 tennis services, which also measured the participants' gaze behavior during the operation. Participants' service was also recorded by GoPro camera to measure decision making. In addition, participants' performance was recorded by the researcher. Then, the experimental group performed the desired exercises for 8 weeks, 3 sessions per week and 30 minutes per session. During this period, the control group performed their daily activities. At the end of 24 practice sessions, the post-test phase, and two weeks after the last session, the retention phase was performed as the pre-test phase. Data were analyzed by repeated measures analysis of variance.Results: The results showed that quiet eye training have a significant effect on improving decision making, increasing the length of the quiet eye period and increasing the performance of the tennis service (P <0.05).Conclusion: The results of this study support the pre programming hypothesis that the importance of planning and choosing the correct answer.
Nayereh Shamshiri; Zohreh Meshkati; Rokhsareh Badami
Abstract
Introduction and Purpose: the purpose of this study was to examine the effect of sport vision training on accuracy and targeting-interceptive skill quiet eye in children with learning disorder.Methods: In this semi- experimental study with a repeated-measure design, 30 boys aged 7-10 years with learning ...
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Introduction and Purpose: the purpose of this study was to examine the effect of sport vision training on accuracy and targeting-interceptive skill quiet eye in children with learning disorder.Methods: In this semi- experimental study with a repeated-measure design, 30 boys aged 7-10 years with learning disorder were divided into sport vision and control groups. In the pre-test phase, participants performed 10 trails to throw and catch task the ball. Acquisition phase have done in eight weeks and three sessions in per weeks. At the end of the last training session, in the post-test phase, in two weeks of detraining in the retention and transfer phases, the participants performed 10 trials to throw and catch task the ball. At each phase, the gaze behavior was recorded by eye tracker system and the throw and catch task performance was recorded by the researcher. Data were analyzed by analysis of variance with repeated measures with 0.05 significant levels.Results: The results indicated that sport vision training has a significant effect on increasing the accuracy of targeting-interceptive skills and on increase quiet eye period of throw phase. But, other result indicated that sport vision training has not effect on quiet eye of catching phase.Conclusion: In general, the results of the current study emphasize the importance of sports vision training on the performance of children with learning disabilities; However, more research is needed on the effect of sports vision training on gaze behavior according to the type of task (targeting or interceptive).
Amir Shahavand; Khajavi Daryoush; Alireza Bahrami; Ahmad Ghotbi Varzaneh
Abstract
The purpose of current study was to muscle efficiency changes during successful and unsuccessful trials in elite pistol shooters with role of quiet eye meditation. In causal comparative study, 20 elite male pistol shooters selected for this study with age range 20-30 years old. After five trials familiarization, ...
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The purpose of current study was to muscle efficiency changes during successful and unsuccessful trials in elite pistol shooters with role of quiet eye meditation. In causal comparative study, 20 elite male pistol shooters selected for this study with age range 20-30 years old. After five trials familiarization, participants performed 20 trials to target with available standard. Scores of ten were considered successful, and scores of less than ten were considered unsuccessful. Data were analyzed using paired t-test and Bootstrap. The results indicated that there was significant difference between biceps and triceps muscle activity in successful and unsuccessful trials, and participants had lower muscle activity in successful trials than unsuccessful trials. Also, Bootstrap results revealed that the quiet eye period mediates biceps and triceps muscle activity in successful and unsuccessful trials. Overall, the results of current study confirmed postural stability hypothesis that this is the determining factor during this period is an increase in postural stability, which leads to a reduction in "noise" in the motor system.Shooting skills with high perceptual / cognitive requirements and low mobility needs and is one of the sports that is highly dependent on the performance of the visual system, because target identification and tracking is largely dependent on the performance of the visual system.In the present study, the researcher intends to investigate the muscular efficiency and mediating role of the length of the stationary eye period in the electrical activity of biceps and triceps of skilled pistol shooters in successful and unsuccessful attempts.
Nayereh Shamshiri; Zohreh Meshkati; Rokhsareh Badami
Abstract
Introduction: Children with learning disorder have more inefficient use of gaze strategies in various tasks.Purpose: The purpose of this study was to examine the effect of quiet eye training on muscle activity and targeting-interceptive skill accuracy in children with learning disorder.Methods: In this ...
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Introduction: Children with learning disorder have more inefficient use of gaze strategies in various tasks.Purpose: The purpose of this study was to examine the effect of quiet eye training on muscle activity and targeting-interceptive skill accuracy in children with learning disorder.Methods: In this semi- experimental study with a repeated-measure design, 30 boys aged 7-10 years with learning disorder were divided into quiet eye and control groups . In the pre-test phase, participants performed 10 trails to throw and catch task the ball. Acquisition phase have done in eight weeks and three sessions in per weeks. In per session after the video-gaze exercises, 10 trials were performed to throw and catch task in accordance with the gaze exercises instructions. At the end of the last training session, in the post-test phase, in two weeks of detraining in the retention and transfer phases, the participants performed 10 trials to throw and catch task the ball. At each phase, the selected muscle electrical activity was recorded by electromyography and the throw and catch task performance was recorded by the researcher. Data were analyzed by analysis of variance with repeated measures with 0.05 significant levels.Results: The results indicated that quiet eye training have a significant effect on increasing the learning of targeting-interceptive skills and on reducing the muscles electrical activity.Conclusion: The results of this study support the pre-programming hypothesis on the importance of planning and choosing the correct answer.
Jalal Dehghanizade; Hasan Mohammadzade
Abstract
Relationship between Quiet Eye duration And Performance: Study of Duration And Location of Gaze Quiet eye is considered as a special gaze to a location of Motor space that is an indicator of motor control. The Aim of this study was to investigate the relationship between quiet eye durations and location ...
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Relationship between Quiet Eye duration And Performance: Study of Duration And Location of Gaze Quiet eye is considered as a special gaze to a location of Motor space that is an indicator of motor control. The Aim of this study was to investigate the relationship between quiet eye durations and location of gaze fixation with performance. The research sample included 60 right-handed boys (19-22 yr). The Snellen chart was used to assess vision. Task was a golf putting and the visual information was recorded through eye track glasses and motor information via a Video camera (SONY). The results of the Pearson correlation coefficient test showed the relationship between quiet eye and performance. Also, the correlation between the location of gaze fixation with quiet eye and performance was determined by Eta correlation coefficient. The results of ANOVA test showed that there was a significant difference between location of gaze fixation in quiet eye and performance variables. In other words, the duration and location of the fixation affect the motor performance. The components of vision can have an effective role in motor control. The quiet eye is a perceptual skill associated with expertise and superior performance. The benefit of the phenomenon has been demonstrated in a range of sporting tasks. The mechanism(s) underpinning this phenomenon are much-debated and are associated with varying assumptions.