AI Article Synopsis
- The study investigates "motare," a specific abnormal movement in kyudo where the archer cannot release the arrow at the right time, suggesting it may be a form of task-specific focal dystonia (TSFD).
- Three participants with "motare," three with another condition called "hayake," and three controls were interviewed, and a surface electromyography (sEMG) analysis was conducted.
- Results showed that "motare" displayed unique features like stereotypy, sensory tricks, and a "morning benefit," indicating it shares characteristics with TSFD, which were not found in the "hayake" group.
Article Abstract
Among the abnormal kyudo movements ("yips"), "motare" is the inability to release the arrow at the intended timing if aiming the target. We hypothesized that "motare" is a task-specific focal dystonia (TSFD). We interviewed three participants with "motare," three participants with "hayake", and three controls without "motare" nor "hayake". Moreover, we conducted a surface electromyography (sEMG) examination and found that "motare" was characterized by stereotypy, sensory tricks, and morning benefit; however, these findings were not observed in "hayake". Abnormal co-contraction of the upper extremity antagonist muscles was observed in one of the three "motare" participants. Overall, these findings suggest that "motare" have the characteristics of TSFD not previously reported.
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| http://dx.doi.org/10.5692/clinicalneurol.cn-001844 | DOI Listing |
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[Abnormal movements "Motare" in Kyudo have the characteristics of task-specific focal dystonia].
Rinsho Shinkeigaku
August 2023
Department of Neurology, Gifu University Graduate School of Medicine.
Article Synopsis
- The study investigates "motare," a specific abnormal movement in kyudo where the archer cannot release the arrow at the right time, suggesting it may be a form of task-specific focal dystonia (TSFD).
- Three participants with "motare," three with another condition called "hayake," and three controls were interviewed, and a surface electromyography (sEMG) analysis was conducted.
- Results showed that "motare" displayed unique features like stereotypy, sensory tricks, and a "morning benefit," indicating it shares characteristics with TSFD, which were not found in the "hayake" group.
[Yips in Kyudo (Japanese archery): prevalence, classification, and aggravating factors].
Rinsho Shinkeigaku
August 2021
Department of Neurology, Gifu University Graduate School of Medicine.
Article Synopsis
- In Kyudo, four performance-hindering disorders were identified: Hayake (early release), Motare (failure to release), Biku (jerking while aiming), and Yusuri (shaking while drawing).
- A study found that 63.1% of medical students experienced at least one disorder, with Hayake being the most common (85.3% of cases).
- The research suggested that having previous experience increases the risk of yips, with Motare standing out as a unique disorder potentially linked to task-specific focal dystonia.
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