Showing 5 results for Asadi
Javad Riyahi Farsani, Behrooz Abdoli, Samira Moeini Rad, Fakhroddin Asadi,
Volume 3, Issue 6 (12-2013)
Abstract
The aim of this experiment was to study the effect of computer game on acquisition and retention of free throw basketball skills (accuracy and pattern) and compare this method with two patterning methods (skilled and learning). 50 high school students age range 15-17 years were selected as a research samples. Subjects after participating in the pretest were divided into 5 equal groups and each group practice separately for 2 weeks and 3 sessions per week (total of 6 sessions) their tasks. Acquisition test hold after the last training session and retention test was performed after 24 hours. Data analyzed using variance with repeated measurement. The significance level for all statistical methods was considered p<0/05 and used SPSS 17 for statistical calculations. The results showed that each group at post-test scores on both the accuracy and pattern of pre-test and the most advanced computer game plus exercise group significantly improved. According to the results, this study can state that the the simulation computer game improves learning of motor skills. This method is more effective than learning a skilled and patterning method.
Dr Ayoub Asadi, Dr Mahmood Sheikh, Dr Davood Hoomanian, Dr Saleh Rafiei,
Volume 10, Issue 20 (11-2020)
Abstract
Focus of Attention and Quiet Eye (QE) of the affecting variables on aiming task performance in recent decades have always been interesting for psychologist and sport science researchers. The purpose of this study was to investigate the effectiveness of attention instructions on gaze behavior and accuracy of dart throwing of novice in low and high task load. In a semi-experimental design with repeated measurements, participant performed dart throwing under three attentional condition (internal, external and control) in two different task load (low and high). Result showed the external focus in high load task improved accuracy of dart throwing than internal focus; in the event that, for low load task there was no significant difference between the attentional conditions. Also, for QE none of attention, load task and their interaction effects was not significant. Results of research for performance supported the constrained action hypothesis; and in contrast to the conscious processing hypothesis. Also the result of gaze behavior suggests several interesting areas for future research.
Dr Ayoub Asadi, Dr Mahmood Sheikh, Dr Davood Hoomanian, Dr Saleh Rafiee,
Volume 12, Issue 24 (12-2022)
Abstract
It has been shown in various researches that the focus of attention and quiet eye duration (QED) are effective variables on the performance of targeting tasks. However, the impact of these variables on motor skills in children needs more research; Therefore, the purpose of this study was to investigate the effect of different attentional focus instruction on QED and accuracy of children's darts throwing. Participants such as twelve right handed children (age: M=8.83, SD=0.79) without dart throwing experience participated in the study; while their eyes movements were recorded by an eye tracker system, participants performed 18 dart throws (6 blocks of 3 trials) under three different attentional conditions: 1) an external focus, 2) an internal focus, and 3) control conditions. The result showed that effect of focus of attention was significant neither for accuracy nor for QED. Therefore, in order to be aware of the optimal focus of children, more research is needed in various motor tasks.
Ayoub Asadi, Sori Heydari, Fatemeh Shirmehenji, Fatemeh Kochakpour,
Volume 100, Issue 100 (10-2020)
Abstract
Many studies have shown the effectiveness of verbal instructions and observational training on the improvement of children’s motor skills; however, there is not enough information about the simultaneous effects of these two variables. The aim of this study was to investigate the effect of attention instructions during observation of the model on gaze behavior and accuracy of overarm throwing in children. 24 children 7 to 10 years of age with normal growth selected purposefully and randomly divided into two internal and external attentions during modeling groups. Training in both groups included observation 10 times skilled model overarm throwing’s film with eye movement recording, with the difference that before it each group received its own instruction. The results of mix-ANOVA and paired and independent t-tests showed that both groups showed a significant increase from the pre-test to post-test in the accuracy (p=0.001; p=0.001) and duration of the quiet eye (p=0.005; p=0.001) of overarm throwing. In the post-test, the external attention during modeling group compared to the internal attention during modeling had significantly higher accuracy (p=0.01) and longer quiet eye duration (p=0.001). Also, the external attention during modeling had more percentage viewing time to relevant external cues (ball and trajectory). Therefore, directing visual attention to movement effect of observed pattern cause improvement in motor performance and visual-motor expertise in children.
Mr Shahrooz Shadrooz, Dr Fatemeh Rezaei, Dr Ayub Asadi,
Volume 100, Issue 100 (10-2020)
Abstract
This research aimed to investigate the effect of directing attention in the form of verbal instructions and perceptual highlighting during modeling on children's learning of targeting skills. The current research was a semi-experimental type of research with a pre-test-post-test design. The statistical population of this research included all male students between 7 and 10 years old in Bojnord primary schools (N = 560) who were studying in the first grade in the academic. 60 people from three groups were selected purposefully. The tools of current research included a number of video monitors, a vision tracker, a tennis ball, and a sable at a distance of 3 meters from the line of the throwing place on the wall. Subjects were divided into four training groups: internal focus modeling through instructions, external focus modeling through instructions, internal focus modeling through perceptual highlighting, and external focus modeling through perceptual highlighting. In the acquisition phase, all 4 groups performed 3 blocks of 10 each including 30 over-the-shoulder throws with a tennis ball during 5 sessions, and at the end of each session, they were tested and their scores were recorded by the examiner. The memory test was also performed after 36 hours of non-training. The data were used using the analysis of variance of the intersection test to investigate the effect of directing attention with verbal instructions and perceptual highlighting on motor learning in four groups at different stages of the test. Research results show that the two groups of perceptual highlighting with attention guidance (internal/external) in the phase of acquisition (P=0.005) and memorization (P=0.006) compared to the two groups of verbal instructions with Significant level (P<0.05) had better performance.
