Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report
The yips is a coordination impairment partly attributed to task-specific dystonia in athletes. While previous research focused on comparisons between control and yips groups, this study aimed to highlight interindividual differences in the yips symptoms of two baseball players with distinct dystonic...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024170454 |
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| author | Toshiyuki Aoyama Kazumichi Ae Takahiro Taguchi Yuna Kawamori Daisuke Sasaki Takashi Kawamura Yutaka Kohno |
| author_facet | Toshiyuki Aoyama Kazumichi Ae Takahiro Taguchi Yuna Kawamori Daisuke Sasaki Takashi Kawamura Yutaka Kohno |
| author_sort | Toshiyuki Aoyama |
| collection | DOAJ |
| description | The yips is a coordination impairment partly attributed to task-specific dystonia in athletes. While previous research focused on comparisons between control and yips groups, this study aimed to highlight interindividual differences in the yips symptoms of two baseball players with distinct dystonic movements through electromyographic and kinematic analysis. Twelve male college baseball players with two exhibiting throwing yips symptoms participated in this study. A three-dimensional motion capture system was used to analyze the kinematic features of throwing motion. Electromyographic data was recorded from the throwing upper limb. Case 1 showed markedly greater elbow flexion before ball release than the control baseball players, likely due to excessive and delayed muscle contraction of the biceps brachii. Case 2 showed intermittent activity of the middle deltoid muscle impacting shoulder abduction movement, resulting in action tremor of the upper limb. This study revealed two distinct types of dystonic movements in baseball players with throwing yips: excessive joint motion, which may be caused by impaired timing and amount of muscle activity, and action tremor, associated with intermittent muscle activity. These findings underscore the importance of individualized kinematic and electromyographic analysis to understand and treat yips symptoms. |
| format | Article |
| id | doaj-art-7df8dd0b627b46e1a95b9e96bd81cd85 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-7df8dd0b627b46e1a95b9e96bd81cd852025-01-17T04:49:59ZengElsevierHeliyon2405-84402025-01-01111e41014Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case reportToshiyuki Aoyama0Kazumichi Ae1Takahiro Taguchi2Yuna Kawamori3Daisuke Sasaki4Takashi Kawamura5Yutaka Kohno6Department of Physical Therapy, Ibaraki Prefectural University of Health Sciences, Japan; Corresponding author. 4669–2, Ami, Ami-Machi, Inashiki-gun, Ibaraki, Japan.Faculty of Sport Culture, Nippon Sport Science University, JapanGraduate School of Comprehensive Human Sciences, University of Tsukuba, JapanDepartment of Physical Therapy, Ibaraki Prefectural University of Health Sciences, JapanDepartment of Physical Therapy, Ibaraki Prefectural University of Health Sciences, JapanFaculty of Health and Sport Sciences, University of Tsukuba, JapanCenter for Medical Sciences, Ibaraki Prefectural University of Health Sciences, JapanThe yips is a coordination impairment partly attributed to task-specific dystonia in athletes. While previous research focused on comparisons between control and yips groups, this study aimed to highlight interindividual differences in the yips symptoms of two baseball players with distinct dystonic movements through electromyographic and kinematic analysis. Twelve male college baseball players with two exhibiting throwing yips symptoms participated in this study. A three-dimensional motion capture system was used to analyze the kinematic features of throwing motion. Electromyographic data was recorded from the throwing upper limb. Case 1 showed markedly greater elbow flexion before ball release than the control baseball players, likely due to excessive and delayed muscle contraction of the biceps brachii. Case 2 showed intermittent activity of the middle deltoid muscle impacting shoulder abduction movement, resulting in action tremor of the upper limb. This study revealed two distinct types of dystonic movements in baseball players with throwing yips: excessive joint motion, which may be caused by impaired timing and amount of muscle activity, and action tremor, associated with intermittent muscle activity. These findings underscore the importance of individualized kinematic and electromyographic analysis to understand and treat yips symptoms.http://www.sciencedirect.com/science/article/pii/S2405844024170454BaseballYipsDystonic movementElectromyographyKinematics |
| spellingShingle | Toshiyuki Aoyama Kazumichi Ae Takahiro Taguchi Yuna Kawamori Daisuke Sasaki Takashi Kawamura Yutaka Kohno Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report Heliyon Baseball Yips Dystonic movement Electromyography Kinematics |
| title | Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report |
| title_full | Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report |
| title_fullStr | Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report |
| title_full_unstemmed | Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report |
| title_short | Electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements: A two-case report |
| title_sort | electromyographic and kinematic characteristics of baseball players with yips exhibiting different types of dystonic movements a two case report |
| topic | Baseball Yips Dystonic movement Electromyography Kinematics |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024170454 |
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