- HOME
- Vol.63 No.8
- CLINICA NEUROL, 63: 532|535, 2023
- Vol.63 No.8 contents
Brief Clinical Note
Abnormal movements “Motare” in Kyudo have the characteristics of task-specific focal dystonia
Taichi Ogiso1), Yoya Ono, M.D.2), Saiki Suzuki1) and Takayoshi Shimohata, M.D., Ph.D.2)
1) Gifu University School of Medicine
2) Department of Neurology, Gifu University Graduate School of Medicine
Among the abnormal kyudo movementsi“yips”j, “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 dystoniaiTSFDj. We interviewed three participants with “motare,” three participants with “hayake”, and three controls without “motare” nor “hayake”. Moreover, we conducted a surface electromyographyisEMGjexamination and found that “motare” was characterized by stereotypy, sensory tricks, and morning benefit; however, these findings were not observed in “hayake”. Abnormal cocontraction 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.
Full Text of this Article in Japanese PDF (1028K)
(CLINICA NEUROL, 63: 532|535, 2023)
key words: Kyudo, task-specific focal dystonia, surface electromyography, co-contraction, yips
(Received: 4-Feb-23)