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Muscle Stiffness and Elasticity Related to Physical Therapeutic Modalities

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±è½Âȯ, ±è¹ÌÀº,
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±è½Âȯ ( Kim Seung-Whan ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç
±è¹ÌÀº ( Kim Mee-Eun ) - ´Ü±¹´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­³»°úÇб³½Ç

Abstract

º» ¿¬±¸´Â ±ÙÀ°ÀÇ °æµµ¿Í ź¼ºµµ¸¦ ÃøÁ¤ÇÏ¿© ±³±Ù ÇǷο¡ ´ëÇÑ ¹°¸®Ä¡·áÀÇ È¿°ú¸¦ Á¤·®ÀûÀ¸·Î Æò°¡ÇÏ°íÀÚ ÇÏ¿´À¸¸ç, ÃøµÎÇϾÇÀå¾Ö Ä¡·á¿¡ °¡Àå ÈçÈ÷ »ç¿ëµÇ´Â ¹°¸®Ä¡·áÀ̸鼭 ÀÛ¿ë±âÀüÀº ¼­·Î ´Ù¸¥ ¼¼ °¡Áö Ä¡·á¹ýÀÎ Àü±âħÀÚ±ØÄ¡·á(EAST), ±ØÃÊ´ÜÆÄ(Microwave diathermy), Àú¼öÁØ·¹ÀÌÀúÄ¡·á(LLLT)ÀÇ È¿°ú¸¦ ºñ±³ ÇÏ¿´´Ù.
½ÇÇèÀ» À§ÇÏ¿© °Ç°­ÇÑ 20´ë Áö¿øÀÚ 10¸íÀ» ¼±Á¤ÇÏ¿©, ±³±ÙÀÇ ÀüºÎ¿Í ÇϺÎÀÇ ±ÙÀ° °æµµ¿Í ź¼ºµµ¸¦ ÃË°¢¼¾¼­·Î ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇèÀûÀ¸·Î ±³±Ù ÇǷθ¦ À¯¹ßÇϱâ À§ÇØ ÇÇ°ËÀÚ°¡ VAS (0 to 10) 5 ÀÌ»óÀÇ ÅëÁõÀ» ´À³¥ ¶§±îÁö ²­À» ¾Ã°Ô ÇÏ¿© ±ÙÀ° º¯È­¸¦ Á¶»çÇÏ¿´À¸¸ç Ä¡·á ¾øÀÌ 15ºÐ°£ÀÇ ÈÞ½ÄÀ» ÁØ ´ÙÀ½ ´Ù½Ã °Ë»çÇÏ¿© ¹°¸®Ä¡·á ÈÄÀÇ È¿°ú ºñ±³¸¦ À§ÇÑ ´ëÁ¶±ºÀ¸·Î »ç¿ëÇÏ¿´´Ù. ÇÏ·ç °£°ÝÀ¸·Î »çÈê¿¡ °ÉÃÄ µ¿ÀÏÇÑ ½Ã°£ µ¿¾È ²­À» ¾Ã°Ô ÇÑ ´ÙÀ½, ¹°¸®Ä¡·áÇÑ °¡Áö¾¿À» ¸ÅÀÏ ½ÃÇàÇÏ¿´À¸¸ç 3°¡Áö ¹°¸®Ä¡·á¹ýÀÇ Àû¿ë ¼ø¼­´Â ¹«ÀÛÀ§·Î ÇÏ¿´´Ù. ²­ ÀúÀÛ Àü, Á÷ÈÄ, 15ºÐ ÈÄ, °¢°¢ÀÇ ¹°¸®Ä¡·á ½ÃÇà ÈÄ¿¡ ±ÙÀ° °æµµ¿Í ź¼ºµµ ÃøÁ¤°ú ÇÔ²² ÇÇ°ËÀÚµéÀÌ ´À³¢´Â ±ÙÀ°ÀÇ ÇǷεµ¸¦ VAS·Î Æò°¡ Çϵµ·Ï Á¶»çÇÏ¿´´Ù.
½ÇÇè °á°ú, ÀúÀÛÃø¿¡¼­¸¸ ²­ ÀúÀÛ Á÷ÈÄ¿Í 15ºÐ ÈÄ¿¡ ±ÙÀ°°æµµÀÇ Áõ°¡¿Í ź¼ºµµÀÇ °¨¼Ò°¡ °üÂûµÇ¾úÀ¸¸ç (p<0.05) ºñÀúÀÛÃø¿¡¼­´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾úÀ¸³ª VAS´Â ÀúÀÛÃø°ú ºñÀúÀÛÃø ¸ðµÎ¿¡¼­ Áõ°¡ÇÏ¿´´Ù(p£¼0.05). ²­ÀúÀÛÀ¸·Î ÀÎÇØ º¯È­µÇ¾ú´ø ±ÙÀ°°æµµ¿Í ź¼ºµµ´Â Àü±âħÀÚ±ØÄ¡·á³ª ±ØÃÊ´ÜÆÄ Ä¡·á ÈÄ¿¡ È¿°úÀûÀ¸·Î ȸº¹µÇ°í VAS°¡ °¨¼ÒÇßÀ¸³ª(p£¼0.05) Àú¼öÁØ·¹ÀÌÀú Ä¡·á ÈÄ¿¡´Â À¯ÀÇÇÑ º¯È­¸¦ º¸¿©ÁÖÁö ¾Ê¾Ò´Ù.
ÀÌ»óÀÇ °á°ú·Î º¸¾Æ, ÆíÃø ÀúÀÛÀº ÀúÀÛÃø ±ÙÀ°ÀÇ °æµµ¸¦ Áõ°¡½ÃÅ°°í ź¼ºµµ´Â °¨¼Ò½ÃÅ°´Â ¹Ý¸é, ºñÀúÀÛÃø¿¡¼­´Â º¯È­°¡ ¾ø´Â °ÍÀ» ¾Ë ¼ö ÀÖ´Ù. ¶ÇÇÑ Àü±âħÀÚ±ØÄ¡·á¿Í ±ØÃÊ´ÜÆÄÄ¡·á´Â ¸ðµÎ ±ÙÀ°ÀÇ °æµµ¸¦ °¨¼Ò½ÃÅ°°í ź¼ºµµ¸¦ Áõ°¡½ÃÄÑ ±ÙÀ°ÀÇ ÇǷθ¦ °¨¼Ò½ÃÅ°´Âµ¥ È¿°úÀûÀÎ Ä¡·á¹ýÀε¥ ¹ÝÇØ Àú¼öÁØ·¹ÀÌÀúÄ¡·áÀÇ È¿°ú´Â ¹Ì¾àÇÑ °ÍÀ¸·Î ÆǴܵȴÙ.

The purpose of this study was to quantitatively assess treatment effect of physical therapy on experimentally-induced masseter muscle fatigue by two parameters of muscle stiffness and elasticity. Three physical therapeutic modalities inducing electroacupunture stimulation therapy(EAST), Microwave diathermy and low-level laser therapy(LLLT) were compared.
10 healthy volunteers with normal occlusion (mean age of 26.3¡¾1.16 years, M:F=1:1) were participated in this study. All subjects were asked to chew gum on the right side until they felt pain(more and VAS 5 (0 to 10)) and their masseter muscles were examined with a tactile sensor in order to evaluate changes of stiffness and elasticity according to gum chewing and three physical therapeutic modalities. Subjective discomfort or pain was self-estimated by VAS as well. Unilateral gum chewing increased stiffness and decreased elasticity only on the chewing side but VAS increased on the both sides(p<0.05). EAST or Microwave diathermy greatly decreased stiffness and VAS and increased elasticity(p<0.05) but LLLT did not exhibit significant difference.
From the results of this study, it is concluded that both EAST and Microwave diathermy have favorable effect on stiffness and elasticity of muscles and pain relief while effect of LLLT is not reliable. In addition, experimental unilateral gum chewing compromises stiffness and elasticity of masseter muscles only the chewing side while subjective discomfort or pain can be felt on the both sides

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Physical therapy;EAST;Microwave diathermy; LLLT;Stiffness; Elasticity

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