Hyoid Bone Movement at Rest by Peripheral Magnetic Stimulation of Suprahyoid Muscles in Normal Individuals

Hitoshi Kagaya, Mao Ogawa, Shino Mori, Yoichiro Aoyagi, Seiko Shibata, Yoko Inamoto, Hitoshi Mori, Eiichi Saitoh

研究成果: Article

3 引用 (Scopus)

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Objectives: Neuromuscular electrical stimulation has been widely used in patients with dysphagia. However, obtaining sufficient hyoid bone movement through surface electrodes seems difficult. The aim of this study was to evaluate hyoid bone movement at rest through peripheral magnetic stimulation of the suprahyoid muscles in normal individuals. Methods: Healthy adult men were recruited. A specially designed coil was connected to the peripheral magnetic stimulator. The coil was placed on the submental area of the subjects. Magnetic stimulation was performed at 30 Hz for 2 sec. The intensity level selected induces hyoid bone movement without causing intolerable pain to the subjects. The hyoid bone at rest between on- and off-magnetic stimulations of the suprahyoid muscles were identified using fluoroscopy at 30 frames/sec in lateral projection. Pain during peripheral magnetic stimulation was evaluated using the numerical rating scale (NRS). Results: Eleven subjects aged 32 ± 9 years participated in this study. Magnetic stimulation resulted in 10.9 ± 2.8 mm forward displacement and 8.3 ± 4.1 mm (mean ± SD) upward displacement of the hyoid bone. The median NRS score during magnetic stimulation was 1. Conclusions: Peripheral magnetic stimulation is noninvasive and easy to perform. It does not require skin preparation, facilitates sufficient hyoid bone movement, and causes minimum level of pain.

元の言語English
ページ(範囲)593-596
ページ数4
ジャーナルNeuromodulation
22
発行部数5
DOI
出版物ステータスPublished - 07-2019

All Science Journal Classification (ASJC) codes

  • Neurology
  • Clinical Neurology
  • Anesthesiology and Pain Medicine

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