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Surface Electromyographic Characteristics of a Myofascial Trigger Point of the Temporalis Muscle

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ÀÓ¿µ°ü ( Im Yeong-Gwan ) - Àü³²´ëÇб³ Ä¡°úº´¿ø ±¸°­³»°ú
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À̱ݼ÷ ( Lee Guem-Sug ) - È­¼øÀü³²´ëÇб³º´¿ø Ä¡°ú
±èº´±¹ ( Kim Byung-Gook ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ±¸°­³»°úÇб³½Ç

Abstract

±Ù¸·µ¿ÅëÀº ±¹¼ÒÀûÀÎ ÅëÁõ°ú ÃËÁø½Ã ±Ù ¾ÐÅëÀ» º¸À̸鼭 ±Ù¸· ¹ßÅëÁ¡ÀÌ Á¸ÀçÇÏ´Â °ÍÀÌ Æ¯Â¡ÀÎ ±ÙÀ°ÁúȯÀÌ´Ù. º» Áõ·Ê¿¡¼­´Â ¾ß°£ ÀÌ°¥À̸¦ È£¼ÒÇϴ ȯÀÚÀÇ ÀÓ»ó°Ë»ç¿¡¼­ ÃËÁøÀ» ÅëÇØ ÃøµÎ±Ù Àü¹æ ºÎÀ§ÀÇ ÀáÀ缺 ¹ßÅëÁ¡À» È®ÀÎÇÏ¿´°í, ¾çÃøÀÇ ÃøµÎ±Ù°ú ±³±Ù¿¡ ´ëÇØ Ç¥¸é ±ÙÀüµµ °Ë»ç¸¦ ½ÃÇàÇÑ °á°ú, ÀÌȯµÈ ÃøµÎ±Ù¿¡¼­ ¼öÃà ÈÄ ±Ù°ú¹Î¼º, ÀÌ¿Ï Áö¿¬ ¹× ±ÙÇÇ·Î °¡¼Ó°ú °°Àº ¼Ò°ßÀ» ¾òÀ» ¼ö ÀÖ¾ú´Ù. Ç¥¸é±ÙÀüµµ °Ë»ç´Â ÀúÀÛ±ÙÀÇ ºñÁ¤»óÀûÀÎ ±â´ÉÀ» È®ÀÎÇÒ ¼ö ÀÖÀ¸¹Ç·Î ±ÙÀ°¼º ÃøµÎÇϾÇÀå¾ÖÀÇ Æò°¡¿¡ µµ¿òÀÌ µÉ ¼ö ÀÖ´Ù.

Myofascial pain is a condition associated with regional pain and muscle tenderness characterized by the presence of myofascial trigger points. In this case report, a subject complaining of nighttime bruxism was clinically assessed, and a latent trigger point of the anterior temporalis muscle was identified with manual palpation. A surface electromyographic (SEMG) exam of the anterior temporalis muscle harboring the latent trigger point demonstrated several SEMG features, including post-contraction irritability, delayed relaxation following contraction and accelerated muscle fatigue. It was concluded that a SEMG exam may detect abnormal masticatory muscle function and, therefore, assist in the evaluation of myogenous temporomandibular disorders.

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±Ù¸·µ¿Åë; ¹ßÅëÁ¡; ÀúÀÛ±Ù; Ç¥¸é±ÙÀüµµ
Myofascial pain; Trigger points; Masticatory muscles; Surface electromyography

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