Volume 15, Issue 29 (4-2025)                   JRSM 2025, 15(29): 39-63 | Back to browse issues page

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khanjari Y, Arab Ameri E, Shahbazi M, Tahmasebi S, Bahrami F. The Simultaneous Changes In EMG Patterns And Motor Function During Learning Dart Throwing Skill In Dominant And Non-Dominant Hand. JRSM 2025; 15 (29) :39-63
URL: http://jrsm.khu.ac.ir/article-1-2986-en.html
1- Assistant Professor, Department of Physical Education, Khajeh Nasiruddin Toosi University.
2- Professor, Department of Motor Behavior and Sport Psychology, Faculty of Physical Education and Sport Sciences, University of Tehran. , eameri@ut.ac.ir
3- Professor, Department of Motor Behavior and Sport Psychology, Faculty of Physical Education and Sport Sciences, University of Tehran.
4- Associate Professor, Department of Control, Faculty of Electrical and Computer Engineering, University of Tehran.
Abstract:   (6919 Views)
Aim: Although much research has been conducted on the concept of motor learning at the performance level, this concept has not been investigated at the level of EMG patterns and the comparison of these patterns in the dominant and non-dominant hand. The aim of this study was to investigate simultaneous changes in EMG pattern during learning dart skill in dominant and non-dominant hands.
 Method: The participants of the present study consisted of 10 non-athlete students with a mean age of 23 ± 2.5 years who were randomly selected from the student community of the University of Tehran and divided into two groups of dominant hand (5) and non-dominant hand (5). Repeated measures ANOVA were used to measure data at the dart throwing performance and changes in EMG activity.
 Results: The results showed a significant decrease in the absolute error of dart throwing at the performance level and an increase in EMG activity at the muscle level along with a decrease in muscle co-contraction in the acquisition and retention stages in both groups. Also, there was no significant difference between EMG activity in the dominant and non-dominant hand groups after skill acquisition.
 Conclusion: Generally, the results of this study showed that along with relatively constant changes in performance during dart skill learning, relatively constant changes in EMG patterns also occur, so that the concept of motor learning is also observed at the muscle level. Also, the results of this study supported the existence of the same motor program for dominant and non-dominant hand control, even in the conditions of bilateral transfer control.

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Type of Study: Research | Subject: motor behavior
Received: 2024/05/18 | Accepted: 2025/02/17 | ePublished ahead of print: 2025/02/17 | Published: 2025/04/30

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